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FB Mathematik
Anschrift
Thea-Leymann-Str. 9
45141 Essen
Raum
WSC-S-4.13

Funktionen

  • Universitätsprofessor/in, Personal FB Mathematik, Campus Essen

Die folgenden Publikationen sind in der Online-Universitätsbibliographie der Universität Duisburg-Essen verzeichnet. Weitere Informationen finden Sie gegebenenfalls auch auf den persönlichen Webseiten der Person.

    Artikel in Zeitschriften

  • Ebobisse, François; Neff, Patrizio
    A fourth-order gauge-invariant gradient plasticity model for polycrystals based on Kröner’s incompatibility tensor
    In: Mathematics and Mechanics of Solids: MMS Jg. 25 (2020) Nr. 2, S. 129 - 159
    ISSN: 1741-3028; 1081-2865
  • Schweickert, Eva; Mihai, L. Angela; Martin, Robert; Neff, Patrizio
    A note on non-homogeneous deformations with homogeneous Cauchy stress for a strictly rank-one convex energy in isotropic hyperelasticity
    In: International Journal of Non-Linear Mechanics Jg. 119 (2020) S. 103282
    ISSN: 0020-7462
  • Böhmer, Christian G.; Lee, Yongjo; Neff, Patrizio
    Chirality in the plane
    In: Journal of the Mechanics and Physics of Solids Jg. 134 (2020) S. 103753
    ISSN: 0022-5096
  • d’Agostino, Marco Valerio; Barbagallo, Gabriele; Ghiba, Ionel-Dumitrel; Eidel, Bernhard; Neff, Patrizio; Madeo, Angela
    Effective Description of Anisotropic Wave Dispersion in Mechanical Band-Gap Metamaterials via the Relaxed Micromorphic Model
    In: Journal of Elasticity Jg. 139 (2020) Nr. 2, S. 299 - 329
    ISSN: 1573-2681; 0374-3535
  • Ghiba, Ionel-Dumitrel; Neff, Patrizio; Owczarek, Sebastian
    Existence results for non-homogeneous boundary conditions in the relaxed micromorphic model
    In: Mathematical Methods in the Applied Sciences (2020) in press
    ISSN: 1099-1476; 0170-4214
  • Aivaliotis, Alexios; Tallarico, Domenico; d’Agostino, Marco-Valerio; Daouadji, Ali; Neff, Patrizio; Madeo, Angela
    Frequency- and angle-dependent scattering of a finite-sized meta-structure via the relaxed micromorphic model
    In: Archive of Applied Mechanics Jg. 90 (2020) S. 1073 - 1096
    ISSN: 1432-0681; 0939-1533; 0020-1154
  • Neff, Patrizio; Eidel, Bernhard; d’Agostino, Marco Valerio; Madeo, Angela
    Identification of Scale-Independent Material Parameters in the Relaxed Micromorphic Model Through Model-Adapted First Order Homogenization
    In: Journal of Elasticity Jg. 139 (2020) Nr. 2, S. 269 - 298
    ISSN: 1573-2681; 0374-3535
  • Voss, Max Jendrik; Baaser, Herbert; Martin, Robert; Neff, Patrizio
    More on Anti-plane Shear
    In: Journal of Optimization Theory and Applications Jg. 184 (2020) S. 226 - 249
    ISSN: 1573-2878; 0022-3239
  • Khurana, Aarti; Bala, Suman; Khan, Hassam; Tomar, Sushil K.; Neff, Patrizio
    On the dispersion of waves for the linear thermoelastic relaxed micromorphic model
    In: Journal of Thermal Stresses Jg. 43 (2020) Nr. 1, S. 3 - 20
    ISSN: 1521-074X; 0149-5739
  • Martin, Robert; Voss, Max Jendrik; Neff, Patrizio; Ghiba, Ionel-Dumitrel
    Quasiconvex relaxation of isotropic functions in incompressible planar hyperelasticity
    In: Proceedings of the Royal Society of Edinburgh Section A: Mathematics Jg. 150 (2020) Nr. 5, S. 2620 - 2631
    ISSN: 1473-7124; 0308-2105
  • Ghiba, Ionel-Dumitrel; Birsan, Mircea; Lewintan, Peter; Neff, Patrizio
    The Isotropic Cosserat Shell Model Including Terms up to O(h⁵) : Part II: Existence of Minimizers
    In: Journal of Elasticity (2020)
    ISSN: 1573-2681; 0374-3535
  • Ghiba, Ionel-Dumitrel; Birsan, Mircea; Lewintan, Peter; Neff, Patrizio
    The Isotropic Cosserat Shell Model Including Terms up to O(h⁵) . Part I : Derivation in Matrix Notation
    In: Journal of Elasticity (2020) in press
    ISSN: 1573-2681; 0374-3535
  • Martin, Robert; Voss, Max Jendrik; Ghiba, Ionel-Dumitrel; Sander, Oliver; Neff, Patrizio
    The Quasiconvex Envelope of Conformally Invariant Planar Energy Functions in Isotropic Hyperelasticity
    In: Journal of Nonlinear Science Jg. 30 (2020) Nr. 6, S. 2885 - 2923
    ISSN: 1432-1467; 0938-8974
  • Neff, Patrizio; Graban, Kai; Schweickert, Eva; Martin, Robert
    The axiomatic introduction of arbitrary strain tensors by Hans Richter – a commented translation of ‘Strain tensor, strain deviator and stress tensor for finite deformations’
    In: Mathematics and Mechanics of Solids Jg. 25 (2020) Nr. 5, S. 1060 - 1080
    ISSN: 1741-3028; 1081-2865
  • Ebobisse, François; Hackl, Klaus; Neff, Patrizio
    A canonical rate-independent model of geometrically linear isotropic gradient plasticity with isotropic hardening and plastic spin accounting for the Burgers vector
    In: Continuum Mechanics and Thermodynamics Jg. 31 (2019) S. 1477 - 1502
    ISSN: 0935-1175; 1432-0959
  • Graban, Kai; Schweickert, Eva; Martin, Robert; Neff, Patrizio
    A commented translation of Hans Richter’s early work “The isotropic law of elasticity”
    In: Mathematics and Mechanics of Solids: MMS Jg. 24 (2019) Nr. 8, S. 2649 - 2660
    ISSN: 1741-3028; 1081-2865
  • Martin, Robert; Ghiba, Ionel-Dumitrel; Neff, Patrizio
    A polyconvex extension of the logarithmic Hencky strain energy
    In: Analysis and Applications Jg. 17 (2019) Nr. 3, S. 349 - 361
    ISSN: 1793-6861; 0219-5305
  • Thiel, Christian; Voss, Max Jendrik; Martin, Robert; Neff, Patrizio
    Do we need Truesdell's empirical inequalities? : On the coaxiality of stress and stretch
    In: International Journal of Non-Linear Mechanics Jg. 112 (2019) S. 106 - 116
    ISSN: 0020-7462; 1878-5638
  • Neff, Patrizio; Fischle, Andreas; Borisov, Lev
    Explicit Global Minimization of the Symmetrized Euclidean Distance by a Characterization of Real Matrices with Symmetric Square
    In: SIAM Journal on Applied Algebra and Geometry Jg. 3 (2019) Nr. 1, S. 31 - 43
    ISSN: 2470-6566
  • Aivaliotis, Alexios; Daouadji, Ali; Barbagallo, Gabriele; Tallarico, Domenico; Neff, Patrizio; Madeo, Angela
    Microstructure-related Stoneley waves and their effect on the scattering properties of a 2D Cauchy/relaxed-micromorphic interface
    In: Wave Motion Jg. 90 (2019) S. 99 - 120
    ISSN: 0165-2125
  • Owczarek, Sebastian; Ghiba, Ionel-Dumitrel; d’Agostino, Marco-Valerio; Neff, Patrizio
    Nonstandard micro-inertia terms in the relaxed micromorphic model: well-posedness for dynamics
    In: Mathematics and Mechanics of Solids (2019)
    ISSN: 1741-3028; 1081-2865
  • Borisov, Lev; Fischle, Andreas; Neff, Patrizio
    Optimality of the relaxed polar factors by a characterization of the set of real square roots of real symmetric matrices
    In: ZAMM: Zeitschrift für Angewandte Mathematik und Mechanik Jg. 99 (2019) Nr. 6, S. e201800120
    ISSN: 0044-2267; 1521-4001
  • Birsan, Mircea; Ghiba, Ionel-Dumitrel; Martin, Robert; Neff, Patrizio
    Refined dimensional reduction for isotropic elastic Cosserat shells with initial curvature
    In: Mathematics and Mechanics of Solids Jg. 24 (2019) Nr. 12, S. 4000 - 4019
    ISSN: 1741-3028; 1081-2865
  • Barbagallo, Gabriele; Tallarico, Domenico; D'Agostino, Marco Valerio; Aivaliotis, Alexios; Neff, Patrizio; Madeo, Angela
    Relaxed micromorphic model of transient wave propagation in anisotropic band-gap metastructures
    In: International Journal of Solids and Structures Jg. 162 (2019) S. 148 - 163
    ISSN: 0020-7683
  • Thiel, Christian; Voss, Max Jendrik; Martin, Robert; Neff, Patrizio
    Shear, pure and simple
    In: International Journal of Non-Linear Mechanics (2019)
    ISSN: 0020-7462
  • Böhmer, Christian G.; Lee, Yongjo; Neff, Patrizio
    Soliton solutions in geometrically nonlinear Cosserat micropolar elasticity with large deformations
    In: Wave Motion Jg. 84 (2019) S. 110 - 124
    ISSN: 0165-2125
  • Nedjar, Boumediene; Baaser, Herbert; Martin, Robert J.; Neff, Patrizio
    A finite element implementation of the isotropic exponentiated Hencky-logarithmic model and simulation of the eversion of elastic tubes
    In: Computational Mechanics Jg. 62 (2018) Nr. 4, S. 635 - 654
    ISSN: 0178-7675; 1432-0924
  • Martin, Robert J.; Ghiba, Ionel-Dumitrel; Neff, Patrizio
    A non-ellipticity result, or the impossible taming of the logarithmic strain measure
    In: International Journal of Non-Linear Mechanics Jg. 102 (2018) S. 147 - 158
    ISSN: 0020-7462
  • Ebobisse, François; Neff, Patrizio; Aifantis, Elias C.
    Existence result for a dislocation based model of single crystal gradient plasticity with isotropic or linear kinematic hardening
    In: Quarterly Journal of Mechanics and Applied Mathematics Jg. 71 (2018) Nr. 1, S. 99 - 124
    ISSN: 1464-3855; 0033-5614
  • Mihai, L Angela; Neff, Patrizio
    Hyperelastic bodies under homogeneous Cauchy stress induced by three-dimensional non-homogeneous deformations
    In: Mathematics and Mechanics of Solids Jg. 23 (2018) Nr. 4, S. 606 - 616
    ISSN: 1741-3028; 1081-2865
  • Madeo, Angela; Collet, Manuel; Miniaci, Marco; Billon, Kévin; Ouisse, Morvan; Neff, Patrizio
    Modeling phononic crystals via theweighted relaxed micromorphic model with free and gradient micro-inertia
    In: Journal of Elasticity Jg. 130 (2018) Nr. 1, S. 59 - 83
    ISSN: 1573-2681; 0374-3535
  • Ghiba, Ionel-Dumitrel; Martin, Robert; Neff, Patrizio
    Rank-one convexity implies polyconvexity in isotropic planar incompressible elasticity
    In: Journal des Mathematiques Pures et Appliquees Jg. 16 (2018) S. 88 - 104
    ISSN: 0021-7824
  • Madeo, Angela; Barbagallo, Gabriele; Collet, Manuel; d’Agostino, Marco Valerio; Miniaci, Marco; Neff, Patrizio
    Relaxed micromorphic modeling of the interface between a homogeneous solid and a band-gap metamaterial : new perspectives towards metastructural design
    In: Mathematics and mechanics of solids Jg. 23 (2018) Nr. 12, S. 1485 - 1506
    ISSN: 1081-2865; 1741-3028
  • Münch, Ingo; Neff, Patrizio
    Rotational invariance conditions in elasticity, gradient elasticity and its connection to isotropy
    In: Mathematics and Mechanics of Solids Jg. 23 (2018) Nr. 1, S. 3 - 42
    ISSN: 1741-3028; 1081-2865
  • Schröder, Jörg; von Hoegen, Markus; Neff, Patrizio
    The exponentiated Hencky energy : anisotropic extension and case studies
    In: Computational Mechanics Jg. 61 (2018) Nr. 6, S. 657 - 685
    ISSN: 1432-0924; 0178-7675
  • Ebobisse, François; Neff, Patrizio; Forest, Samuel
    Well-posedness for the microcurl model in both single and polycrystal gradient plasticity
    In: International Journal of Plasticity Jg. 107 (2018) S. 1 - 26
    ISSN: 0749-6419
  • d'Agostino, Marco Valerio; Barbagallo, Gabriele; Ghiba, Ionel-Dumitrel; Madeo, Angela; Neff, Patrizio
    A panorama of dispersion curves for the weighted isotropic relaxed micromorphic model
    In: ZAMM: Zeitschrift für Angewandte Mathematik und Mechanik Jg. 97 (2017) Nr. 11, S. 1436 - 1481
    ISSN: 1521-4001; 0044-2267
  • Neff, Patrizio; Ghiba, Dumitrel; Münch, Ingo; Madeo, Angela
    A variant of the linear isotropic indeterminate couple-stress model with symmetric local force-stress, symmetric nonlocal force-stress, symmetric couple-stresses and orthogonal boundary conditions
    In: Mathematics and Mechanics of Solids Jg. 22 (2017) Nr. 6, S. 1221 - 1266
    ISSN: 1081-2865; 1741-3028
  • Fischle, Andreas; Neff, Patrizio
    Continuum Mechanics : Grioli's theorem with weights and the relaxed-polar mechanism of optimal Cosserat rotations
    In: Atti della Accademia Nazionale dei Lincei, Classe di Scienze Fisiche, Matematiche e Naturali, Rendiconti Lincei Matematica e Applicazioni Jg. 28 (2017) Nr. 3, S. 573 - 600
    ISSN: 1720-0768; 1120-6330
  • Bahamonde, Sebastian; Böhmer, Christian G.; Neff, Patrizio
    Geometrically nonlinear cosserat elasticity in the plane : Applications to chirality
    In: Journal of Mechanics of Materials and Structures Jg. 12 (2017) Nr. 5, S. 689 - 710
    ISSN: 1559-3959
  • Neff, Patrizio; Mihai, L. Angela
    Hyperelastic bodies under homogeneous Cauchy stress induced by non-homogeneous finite deformations
    In: International Journal of Non-Linear Mechanics Jg. 89 (2017) S. 93 - 100
    ISSN: 0020-7462
  • Neff, Patrizio; Mihai, L. Angela
    Injectivity of the Cauchy-stress tensor along rank-one connected lines under strict rank-one convexity condition
    In: Journal of Elasticity Jg. 127 (2017) Nr. 2, S. 309 - 315
    ISSN: 1573-2681; 0374-3535
  • Lankeit, Johannes; Neff, Patrizio; Osterbrink, Frank
    Integrability conditions between the first and second Cosserat deformation tensor in geometrically nonlinear micropolar models and existence of minimizers
    In: Zeitschrift für Angewandte Mathematik und Physik Jg. 68 (2017) S. 11
    ISSN: 1420-9039
  • Neff, Patrizio; Thiel, Christian; Gao, David Yang; Roventa, Ionel
    On the Convexity of Nonlinear Elastic Energies in the Right Cauchy-Green Tensor
    In: Journal of Elasticity: the physical and mathematical science of solids Jg. 127 (2017) Nr. 2, S. 303 6 Seiten - 308 6 Seiten
    ISSN: 0374-3535; 1573-2681
  • Madeo, Angela; Neff, Patrizio; Aifantis, Elias C.; Barbagallo, Gabriele; D'Agostino, Marco Valerio
    On the role of micro-inertia in enriched continuum mechanics
    In: Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences Jg. 473 (2017) Nr. 2198, S. 20160722
    ISSN: 1471-2946; 1364-5021
  • Martin, Robert; Ghiba, Ionel-Dumitrel; Neff, Patrizio
    Rank-one convexity implies polyconvexity for isotropic, objective and isochoric elastic energies in the two-dimensional case
    In: Proceedings of the Royal Society of Edinburgh: Section A, Mathematics Jg. 147 (2017) Nr. 3, S. 571 - 597
    ISSN: 1473-7124; 0308-2105
  • Neff, Patrizio; Ghiba, Dumitrel; Barbagallo, Gabriele; Madeo, Angela; d'Agostino, Marco Valerio; Abreu, Rafael
    Real wave propagation in the isotropic relaxed micromorphic model
    In: Proceedings of the Royal Society: A, Mathematical, physical and engineering sciences Jg. 473 (2017) Nr. 2197, S. 20160790
    ISSN: 0080-4630; 0962-8444; 0950-1207; 1364-5021
  • Fischle, Andreas; Neff, Patrizio
    The geometrically nonlinear Cosserat micropolar shear–stretch energy : Part I: A general parameter reduction formula and energy-minimizing microrotations in 2D
    In: ZAMM: Zeitschrift für Angewandte Mathematik und Mechanik Jg. 97 (2017) Nr. 7, S. 828 - 842
    ISSN: 1521-4001; 0044-2267
  • Fischle, Andreas; Neff, Patrizio
    The geometrically nonlinear Cosserat micropolar shear–stretch energy : Part II: Non-classical energy-minimizing microrotations in 3D and their computational validation
    In: ZAMM: Zeitschrift für Angewandte Mathematik und Mechanik Jg. 97 (2017) Nr. 7, S. 843 - 871
    ISSN: 1521-4001; 0044-2267
  • Münch, Ingo; Neff, Patrizio; Madeo, Angela; Ghiba, Ionel-Dumitrel
    The modified indeterminate couple stress model : why Yang et al.'s arguments motivating a symmetric couple stress tensor contain a gap and why the couple stress tensor may be chosen symmetric nevertheless
    In: ZAMM: Zeitschrift für Angewandte Mathematik und Mechanik Jg. 97 (2017) Nr. 12, S. 1524 - 1554
    ISSN: 1521-4001; 0044-2267
  • Fischle, Andreas; Neff, Patrizio; Raabe, Dierk
    The relaxed-polar mechanism of locally optimal Cosserat rotations for an idealized nanoindentation and comparison with 3D-EBSD experiments
    In: Zeitschrift für angewandte Mathematik und Physik Jg. 68 (2017) Nr. 4, S. 90
    ISSN: 1420-9039; 0044-2275
  • Borisov, Lev; Neff, Patrizio; Sra, Suvrit; Thiel, Christian
    The sum of squared logarithms inequality in arbitrary dimensions
    In: Linear Algebra and Its Applications Jg. 528 (2017) S. 124 - 146
    ISSN: 0024-3795; 1873-1856
  • Barbagallo, Gabriele; Madeo, Angela; d'Agostino, Marco Valerio; Abreu, Rafael; Ghiba, Ionel-Dumitrel; Neff, Patrizio
    Transparent anisotropy for the relaxed micromorphic model : macroscopic consistency conditions and long wave length asymptotics
    In: International journal of solids and structures Jg. 120 (2017) S. 7 - 30
    ISSN: 0020-7683
  • Neff, Patrizio; Ghiba, Dumitrel; Münch, Ingo; Madeo, Angela
    A new view on boundary conditions in the Grioli–Koiter–Mindlin–Toupin indeterminate couple stress model
    In: European Journal of Mechanics: A, Solids Jg. 59 (2016) S. 294 - 322
    ISSN: 0997-7538
  • Neff, Patrizio; Madeo, Angela; d'Agostino, Marco Valerio; Barbagallo, Gabriele
    Complete band gaps including non-local effects occur only in the relaxed micromorphic model
    In: Comptes rendus mathematique Jg. 344 (2016) Nr. 11-12, S. 784 - 796
    ISSN: 1631-0721
  • Bauer, Sebastian; Neff, Patrizio; Pauly, Dirk; Starke, Gerhard
    Dev-Div- and DevSym-DevCurl-inequalities for incompatible square tensor fields with mixed boundary conditions
    In: ESAIM Control Optimisation and Calculus of Variations Jg. 22 (2016) Nr. 1, S. 112 - 133
    ISSN: 1292-8119
  • Neff, Patrizio; Madeo, Angela; Barbagallo, Gabriele; d'Agostino, Marco Valerio; Placidi, Luca
    First evidence of non-locality in real band-gap metamaterials : determining parameters in the relaxed micromorphic model
    In: Proceedings of the Royal Society of London. Series A, Mathematical, physical and engineering sciences Jg. 472 (2016) Nr. 2190, 21 Seiten 21 Seiten
    ISSN: 1471-2946; 0962-8444; 0080-4630; 1364-5021
  • Neff, Patrizio; Eidel, Bernhard; Martin, Robert
    Geometry of Logarithmic Strain Measures in Solid Mechanics
    In: Archive for Rational Mechanics and Analysis Jg. 222 (2016) Nr. 2, S. 507 - 572
    ISSN: 1432-0673; 0003-9527
  • Neff, Patrizio; Ghiba, Dumitrel
    Loss of ellipticity for non-coaxial plastic deformations in additive logarithmic finite strain plasticity
    In: International Journal of Non-Linear Mechanics Jg. 81 (2016) S. 122 - 128
    ISSN: 0020-7462
  • Neff, Patrizio; Martin, Robert; Ghiba, Ionel-Dumitrel;
    Loss of ellipticity in additive logarithmic finite strain plasticity and related results on Hencky-type energies
    Joint 87th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM) and Deutsche Mathematiker‐Vereinigung (DMV), 7 – 11 March 2016, Braunschweig,
    In: Proceedings in applied mathematics and mechanics: PAMM Jg. 16 (2016) Nr. 1, S. 341 - 342
    ISSN: 1617-7061
  • Neff, Patrizio; Martin, Robert
    Minimal geodesics on GL(n) for left-invariant, right-O(n)-invariant Riemannian metrics
    In: The Journal of Geometric Mechanics Jg. 8 (2016) Nr. 3, S. 323 - 357
    ISSN: 1941-4889; 1941-4897
  • Sander, Oliver; Neff, Patrizio; Birsan, Mircea
    Numerical treatment of a geometrically nonlinear planar Cosserat shell model
    In: Computational Mechanics Jg. 57 (2016) Nr. 5, S. 817 - 841
    ISSN: 0178-7675; 1432-0924
  • Neff, Patrizio; Münch, Ingo; Ghiba, Dumitrel; Madeo, Angela
    On some fundamental misunderstandings in the indeterminate couple stress model : A comment on recent papers of A.R. Hadjesfandiari and G.F. Dargush
    In: International journal of solids and structures Jg. 81 (2016) S. 233 - 243
    ISSN: 0020-7683
  • Neff, Patrizio; Dannan, Fozi M.; Thiel, Christian
    On the sum of squared logarithms inequality and related inequalities
    In: Journal of Mathematical Inequalities Jg. 10 (2016) Nr. 1, S. 1 - 17
    ISSN: 1846-579X; 1848-9575
  • Neff, Patrizio; Münch, Ingo; Martin, Robert
    Rediscovering G.F. Becker's early axiomatic deduction of a multiaxial nonlinear stress-strain relation based on logarithmic strain
    In: Mathematics and Mechanics of Solids Jg. 21 (2016) Nr. 7, S. 856 - 911
    ISSN: 1081-2865; 1741-3028
  • Neff, Patrizio; Ghiba, Dumitrel; Madeo, Angela; Rosi, Giuseppe
    Reflection and transmission of elastic waves in non-local band-gap metamaterials : A comprehensive study via the relaxed micromorphic model
    In: Journal of the Mechanics and Physics of Solids Jg. 95 (2016) S. 441 - 479
    ISSN: 0022-5096
  • Neff, Patrizio; Seymenoğlu, Belgin; Böhmer, Christian Gerhard
    Soliton-like solutions based on geometrically nonlinear Cosserat micropolar elasticity
    In: Wave motion: An International Journal Reporting Research on Wave Phenomena Jg. 60 (2016) S. 158 - 165
    ISSN: 0165-2125
  • Montella, Giuseppe; Govindjee, Sanjay; Neff, Patrizio
    The Exponentiated Hencky Strain Energy in Modeling Tire Derived Material for Moderately Large Deformations
    In: Journal of engineering materials and technology Jg. 138 (2016) Nr. 3,
    ISSN: 1528-8889; 0094-4289
  • Neff, Patrizio; Ghiba, Dumitrel
    The exponentiated Hencky-Logarithmic strain energy : Part III: Coupling with idealized isotropic finite strain plasticity
    In: Continuum mechanics and thermodynamics Jg. 28 (2016) Nr. 1, S. 477 - 487
    ISSN: 0935-1175; 1432-0959
  • Chełmiński, Krzysztof; Neff, Patrizio; Owczarek, Sebastian
    A first regularity result for the Armstrong-Frederick cyclic hardening plasticity model with Cosserat effects
    In: Journal of Mathematical Analysis and Applications Jg. 423 (2015) Nr. 1, S. 283 - 304
    ISSN: 0022-247X
  • Ghiba, Ionel Dumitrel; Neff, Patrizio; Martin, Robert
    An ellipticity domain for the distortional Hencky logarithmic strain energy
    In: Proceedings of the Royal Society of London: Series A, Mathematical, physical and engineering sciences Jg. 471 (2015) Nr. 2184, S. 20150510
    ISSN: 0962-8444; 0080-4630; 1364-5021
  • Madeo, Angela; Neff, Patrizio; Ghiba, Dumitrel; Placidi, Luca; Rosi, Giuseppe
    Band gaps in the relaxed linear micromorphic continuum
    In: ZAMM: Zeitschrift für Angewandte Mathematik und Mechanik Jg. 95 (2015) Nr. 9, S. 880 - 887
    ISSN: 1521-4001; 0044-2267
  • Neff, Patrizio; Bîrsan, Mircea; Osterbrink, Frank
    Existence theorem for geometrically nonlinear cosserat micropolar model under uniform convexity requirements
    In: Journal of elasticity Jg. 121 (2015) Nr. 1, S. 119 - 141
    ISSN: 0374-3535; 1573-2681
  • Pompe, Waldemar; Neff, Patrizio
    On the generalised sum of squared logarithms inequality
    In: Journal of Inequalities and Applications Jg. 2015 (2015) S. 101
    ISSN: 1025-5834
  • Neff, Patrizio; Pauly, Dirk; Witsch, Karl-Josef
    Poincaré meets Korn via Maxwell : extending Korn's first inequality to incompatible tensor fields
    In: Journal of differential equations Jg. 258 (2015) Nr. 4, S. 1267 - 1302
    ISSN: 0022-0396; 1090-2732
  • Martin, Robert J.; Neff, Patrizio
    Some remarks on the monotonicity of primary matrix functions on the set of symmetric matrices
    In: Archive of Applied Mechanics Jg. 85 (2015) Nr. 12, S. 1761 - 1778
    ISSN: 0020-1154; 0939-1533
  • Ghiba, Dumitrel; Neff, Patrizio; Šilhavý, Miroslav
    The exponentiated Hencky-Logarithmic strain energy : Improvement of planar polyconvexity
    In: International Journal of Non-Linear Mechanics Jg. 71 (2015) S. 48 - 51
    ISSN: 0020-7462
  • Neff, Patrizio; Lankeit, Johannes; Ghiba, Dumitrel; Martin, Robert; Steigmann, David
    The exponentiated Hencky-Logarithmic strain energy : Part II: Coercivity, planar polyconvexity and existence of minimizers
    In: Zeitschrift für Angewandte Mathematik und Physik Jg. 66 (2015) Nr. 4, S. 1671 - 1693
    ISSN: 1420-9039; 0044-2275
  • Neff, Patrizio; Ghiba, Dumitrel; Lankeit, Johannes
    The exponentiated Hencky-Logarithmic strain energy : Part I: Constitutive issues and rank-one convexity
    In: Journal of elasticity Jg. 121 (2015) Nr. 2, S. 143 - 234
    ISSN: 0374-3535; 1573-2681
  • Neff, Patrizio; Lazar, Markus; Ghiba, Dumitrel; Madeo, Angela
    The relaxed linear micromorphic continuum : well-posedness of the static problem and relations to the gauge theory of dislocations
    In: The quarterly journal of mechanics and applied mathematics : QJMAM Jg. 68 (2015) Nr. 1, S. 53 - 84
    ISSN: 0033-5614; 1464-3855
  • Neff, Patrizio; Ghiba, Dumitrel; Madeo, Angela; Placidi, Luca; Rosi, Giuseppe
    The relaxed linear micromorphic continuum : Existence, uniqueness and continuous dependence in dynamics
    In: Mathematics and Mechanics of Solids Jg. 20 (2015) Nr. 10, S. 1171 - 1197
    ISSN: 1081-2865; 1741-3028
  • Madeoa, Angela; Corte, Allesandro D.; Greco, Leopoldo; Neff, Patrizio
    Wave propagation in pantographic 2D lattices with internal discontinuities
    In: Proceedings of the Estonian Academy of Sciences Jg. 64 (2015) Nr. 3, S. 325 - 330
    ISSN: 1736-7530; 1736-6046
  • Madeo, Angela; Neff, Patrizio; Ghiba, Dumitrel; Placidi, Luca; Rosi, Giuseppe
    Wave propagation in relaxed micromorphic continua : modeling metamaterials with frequency band-gaps
    In: Continuum mechanics and thermodynamics Jg. 27 (2015) Nr. 4-5, S. 551 - 570
    ISSN: 0935-1175; 1432-0959
  • Kraynyukova, Nataliya; Nesenenko, Sergeiy; Neff, Patrizio; Chełmiński, Krzysztof
    Well-posedness for dislocation based gradient visco-plasticity with isotropic hardening
    In: Nonlinear analysis: Real world applications Jg. 25 (2015) S. 96 - 111
    ISSN: 1468-1218
  • Neff, Patrizio; Eidel, Bernhard; Osterbrink, Frank; Martin, Robert
    A Riemannian approach to strain measures in nonlinear elasticity
    In: Comptes Rendus Mecanique Jg. 342 (2014) Nr. 4, S. 254 - 257
    ISSN: 1631-0721
  • Neff, Patrizio; Nakatsukasa, Yuji; Fischle, Andreas
    A logarithmic minimization property of the unitary polar factor in the spectral norm and the Frobenius norm
    In: SIAM Journal on Matrix Analysis and Applications Jg. 35 (2014) Nr. 3, S. 1132 - 1154
    ISSN: 0895-4798; 1095-7162
  • Neff, Patrizio; Ghiba, Dumitrel; Placidi, Luca; Madeo, Angela; Rosi, Giuseppe
    A unifying perspective : the relaxed linear micromorphic continuum
    In: Continuum mechanics and thermodynamics Jg. 26 (2014) Nr. 5, S. 639 - 681
    ISSN: 0935-1175; 1432-0959
  • Neff, Patrizio; Pompe, Waldemar
    Counterexamples in the theory of coerciveness for linear elliptic systems related to generalizations of Korn's second inequality
    In: ZAMM: Zeitschrift für Angewandte Mathematik und Mechanik Jg. 94 (2014) Nr. 9, S. 784 - 790
    ISSN: 1521-4001; 0044-2267
  • Neff, Patrizio; Pauly, Dirk
    Eine Fusion in der Mathematik : Über das Verschmelzen zweier Kerngebiete der Angewandten Mathematik
    In: Unikate: Berichte aus Forschung und Lehre (2014) Nr. 45: Fusionen – Was sagen die Fakultäten?, S. 28 - 37
    ISBN: 978-3-934359-45-1 ISSN: 0944-6060; 1869-3881
  • Birsan, Mircea; Neff, Patrizio
    Existence of minimizers in the geometrically non-linear 6-parameter resultant shell theory with drilling rotations
    In: Mathematics and mechanics of solids Jg. 19 (2014) Nr. 4, S. 376 - 397
    ISSN: 1081-2865; 1741-3028
  • Bauer, Sebastian; Neff, Patrizio; Pauly, Dirk; Starke, Gerhard
    New Poincaré-type inequalities
    In: Comptes rendus mathematique Jg. 352 (2014) Nr. 2, S. 163 - 166
    ISSN: 1631-073X
  • Neff, Patrizio; Lankeit, Johannes; Madeo, Angela
    On Grioli's minimum property and its relation to Cauchy's polar decomposition
    In: International Journal of Engineering Science Jg. 80 (2014) S. 209 - 217
    ISSN: 0020-7225
  • Lehmich, Stephan; Neff, Patrizio; Lankeit, Johannes
    On the convexity of the function C → f(det C) on positive-definite matrices
    In: Mathematics and mechanics of solids Jg. 19 (2014) Nr. 4, S. 369 - 375
    ISSN: 1081-2865; 1741-3028
  • Neff, Patrizio; Ghiba, Dumitrel; Lankeit, Johannes; Martin, Robert
    Rank-one convexity and polyconvexity of Hencky-type energies
    In: Proceedings in Applied Mathematics and Mechanics (PAMM) / 85th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), 10 – 14 March 2014, Erlangen, Germany; Jg. 14 (2014) Nr. 1, Special Issue: 85th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Erlangen 2014, S. 735 - 736
    ISSN: 1617-7061
  • Birsan, Mircea; Neff, Patrizio
    Shells without drilling rotations: A representation theorem in the framework of the geometrically nonlinear 6-parameter resultant shell theory
    In: International Journal of Engineering Science / Zubov, Leonid; Jg. 80 (2014) S. 32 - 42
    ISSN: 0020-7225
  • Neff, Patrizio; Chełmiński, Krzysztof; Owczarek, Sebastian
    The Armstrong–Frederick cyclic hardening plasticity model with Cosserat effects
    In: Journal of Differential Equations Jg. 256 (2014) Nr. 11, S. 3497 - 3523
    ISSN: 0022-0396
  • Neff, Patrizio; Lankeit, Johannes; Nakatsukasa, Yuji
    The minimization of matrix logarithms : on a fundamental property of the unitary polar factor
    In: Linear algebra and its applications Jg. 449 (2014) S. 28 - 42
    ISSN: 0024-3795
  • Neff, Patrizio; Ghiba, Dumitrel; Madeo, Angela
    The relaxed micromorphic continuum model
    In: Proceedings in Applied Mathematics and Mechanics (PAMM) / 85th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), 10 – 14 March 2014, Erlangen, Germany; Jg. 14 (2014) Nr. 1, Special Issue: 85th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Erlangen 2014, S. 733 - 734
    ISSN: 1617-7061
  • Birsan, Mircea; Neff, Patrizio
    Existence theorems in the geometrically non-linear 6-parameter theory of elastic plates
    In: Journal of Elasticity Jg. 112 (2013) Nr. 2, S. 185 - 198
    ISSN: 0374-3535; 1573-2681
  • Neff, Patrizio; Bauer, Sebastian; Pauly, Dirk; Starke, Gerhard
    Some Poincaré type inequalities for quadratic matrix fields
    In: Proceedings in Applied Mathematics and Mechanics (PAMM) / 84th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), 18 – 22 March 2013, Novi Sad, Serbia; Jg. 13 (2013) Nr. 1, 84th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Novi Sad 2013, S. 359 - 360
    ISSN: 1617-7061
  • Birsan, Mircea; Neff, Patrizio; Lankeit, Johannes
    Sum of squared logarithms : an inequality relating positive definite matrices and their matrix logarithm
    In: Journal of Inequalities and Applications Jg. 2013 (2013) S. 168
    ISSN: 1029-242X
  • Neff, Patrizio; Chełmiński, Krzysztof; Owczarek, Sebastian
    The Armstrong-Frederick Plasticity model with Cosserat effects
    In: Proceedings in Applied Mathematics and Mechanics (PAMM) / 84th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), 18 – 22 March 2013, Novi Sad, Serbia; Jg. 13 (2013) Nr. 1, 84th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Novi Sad 2013, S. 357 - 358
    ISSN: 1617-7061
  • Neff, Patrizio; Eidel, Bernhard; Osterbrink, Frank; Martin, Robert
    The Hencky strain energy ‖log U‖2 measures the geodesic distance of the deformation gradient to SO(n) in the canonical left-invariant Riemannian metric on GL(n)
    In: Proceedings in Applied Mathematics and Mechanics (PAMM) / 84th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), 18 – 22 March 2013, Novi Sad, Serbia; Jg. 13 (2013) Nr. 1, Special Issue: 84th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Novi Sad 2013, S. 369 - 370
    ISSN: 1617-7061
  • Neff, Patrizio; Lankeit, Johannes; Pauly, Dirk
    Uniqueness of integrable solutions to ∇ζ = Gζ, ζ|Γ = 0 for integrable tensor coefficients G and applications to elasticity
    In: Proceedings in Applied Mathematics and Mechanics (PAMM) / 84th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), 18 – 22 March 2013, Novi Sad, Serbia; Jg. 13 (2013) Nr. 1, 84th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Novi Sad 2013, S. 361 - 362
    ISSN: 1617-7061
  • Neff, Patrizio; Lankeit, Johannes; Pauly, Dirk
    Uniqueness of integrable solutions to ∇ζ=Gζ,ζ|Γ=0 for integrable tensor coefficients G and applications to elasticity
    In: Zeitschrift für Angewandte Mathematik und Physik Jg. 64 (2013) Nr. 6, S. 1679 - 1688
    ISSN: 0044-2275; 1420-9039
  • Neff, Patrizio; Nesenenko, Sergiy
    Well-posedness for dislocation based gradient viscoplasticity II : general nonassociative monotone plastic flows
    In: Mathematics and Mechanics of Complex Systems Jg. 1 (2013) Nr. 2, S. 149 - 176
    ISSN: 2326-7186; 2325-3444
  • Neff, Patrizio; Witsch, Karl-Josef; Pauly, Dirk
    Maxwell meets Korn : a new coercive inequality for tensor fields in in R N×N with square-integrable exterior derivative
    In: Mathematical models and methods in applied sciences Jg. 35 (2012) Nr. 1, S. 65 - 71
    ISSN: 1099-1476
  • Neff, Patrizio; Pauly, Dirk; Witsch, Karl-Josef
    On a canonical extension of Korn's first and Poincaré's inequalities to H(CURL)
    In: Journal of Mathematical Sciences Jg. 185 (2012) Nr. 5, S. 721 - 727
    ISSN: 1072-3374; 1573-8795
  • Birsan, Mircea; Neff, Patrizio
    On the equations of geometrically nonlinear elastic plates with rotational degrees of freedom
    In: Annals / Academy of Romanian Scientists: series on mathematics and its applications Jg. 4 (2012) Nr. 1, S. 97 - 103
    ISSN: 2066-5997; 2066-6594
  • Neff, Patrizio; Chełmiński, Krzysztof; Owczarek, Sebastian
    Poroplasticity with Cosserat effects
    In: ZAMM: Zeitschrift für Angewandte Mathematik und Mechanik Jg. 92 (2012) Nr. 6, S. 462 - 478
    ISSN: 1521-4001; 0044-2267
  • Nesenenko, Sergiy; Neff, Patrizio
    Well-Posedness for dislocation based gradient viscoplasticity I : Subdifferential case
    In: SIAM Journal on Mathematical Analysis Jg. 44 (2012) Nr. 3, S. 1694 - 1712
    ISSN: 0036-1410; 1095-7154
  • Neff, Patrizio; Witsch, Karl-Josef; Pauly, Dirk
    A Korn's inequality for incompatible tensor fields
    In: Proceedings in Applied Mathematics and Mechanics (PAMM) / 82nd Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Graz 2011; Jg. 11 (2011) Nr. 1, Special Issue: 82nd Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Graz 2011, S. 683 - 684
    ISSN: 1617-7061
  • Neff, Patrizio; Pauly, Dirk; Witsch, Karl-Josef
    A canonical extension of Korn's first inequality to H(Curl) motivated by gradient plasticity with plastic spin
    In: Comptes Rendus Mathematique Jg. 349 (2011) Nr. 23-24, S. 1251 - 1254
    ISSN: 1631-073X
  • Neff, Patrizio; Chełmiński, Krzysztof; Müller, Wolfgang; Wieners, Christian
    A solution method for an infinitesimal elastoplastic Cosserat model
    In: Mathematical models and methods in applied sciences Jg. 17 (2011) Nr. 8, S. 1211 - 1229
    ISSN: 0218-2025; 1793-6314
  • Neff, Patrizio; Beyrouthy, Joelle
    A viscoelastic thin rod model for large deformations : Numerical examples
    In: Mathematics and Mechanics of Solids Jg. 16 (2011) Nr. 8, S. 887 - 896
    ISSN: 1081-2865; 1741-3028
  • Klawonn, Axel; Neff, Patrizio; Rheinbach, Oliver; Vanis, Stefanie
    FETI-DP domain decomposition methods for elasticity with structural changes: P-elasticity
    In: ESAIM Mathematical Modelling and Numerical Analysis Jg. 45 (2011) Nr. 3, S. 563 - 602
    ISSN: 0764-583X; 0399-0516
  • Neff, Patrizio; Münch, Ingo; Wagner, Werner
    Transversely isotropic material: Nonlinear Cosserat versus classical approach
    In: Continuum mechanics and thermodynamics Jg. 23 (2011) Nr. 1, S. 27 - 34
    ISSN: 0935-1175; 1432-0959
  • Neff, Patrizio; Ebobisse, Francois
    Existence and Uniqueness for Rate-Independent Infinitesimal Gradient Plasticity with Isotropic Hardening and Plastic Spin
    In: Mathematics and Mechanics of Solids Jg. 15 (2010) Nr. 6, S. 691 - 703
    ISSN: 1081-2865; 1741-3028
  • Neff, Patrizio; Jeong, Jena
    Existence, uniqueness and stability in linear Cosserat elasticity for weakest curvature conditions
    In: Mathematics and Mechanics of Solids Jg. 15 (2010) Nr. 1, S. 78 - 95
    ISSN: 1081-2865; 1741-3028
  • Neff, Patrizio; Müller, Wolfgang; Wieners, Christian
    Parallel simulation of an infinitesimal elasto-plastic Cosserat model
    In: GAMM-Mitteilungen Jg. 33 (2010) Nr. 1, S. 79 - 94
    ISSN: 1522-2608
  • Klawonn, Axel; Neff, Patrizio; Rheinbach, Oliver; Vanis, Stefanie
    Solving geometrically exact micromorphic elasticity with a staggered algorithm
    In: GAMM-Mitteilungen Jg. 33 (2010) Nr. 1, S. 57 - 72
    ISSN: 1522-2608
  • Neff, Patrizio; Fischle, Andreas; Jeong, Jena
    Stable identification of linear isotropic Cosserat parameters: bounded stiffness in bending and torsion implies conformal invariance of curvature
    In: Acta Mechanica Jg. 211 (2010) Nr. 3, S. 237 - 249
    ISSN: 0001-5970; 1619-6937
  • Neff, Patrizio; Jeong, Jena
    A new paradigm : the linear isotropic Cosserat model with conformally invariant curvature energy
    In: ZAMM: Zeitschrift für Angewandte Mathematik und Mechanik Jg. 89 (2009) Nr. 2, S. 107 - 122
    ISSN: 1521-4001; 0044-2267
  • Neff, Patrizio; Jeong, Jena; Münch, Ingo; Ramézani, Hamidréza
    A numerical study for linear isotropic Cosserat elasticity with conformally invariant curvature
    In: ZAMM: Zeitschrift für Angewandte Mathematik und Mechanik Jg. 89 (2009) Nr. 7, S. 552 - 569
    ISSN: 1521-4001; 0044-2267
  • Ebbing, Vera; Schröder, Jörg; Neff, Patrizio
    Approximation of anisotropic elasticity tensors at the reference state with polyconvex energies
    In: Archive of Applied Mechanics Jg. 79 (2009) Nr. 6-7, S. 651 - 657
    ISSN: 1432-0681
  • Ebbing, Vera; Balzani, Daniel; Schröder, Jörg; Neff, Patrizio; Gruttmann, Friedrich
    Construction of anisotropic polyconvex energies and applications to thin shells
    In: Computational Materials Science Jg. 46 (2009) Nr. 3, S. 639 - 641
    ISSN: 0927-0256
  • Neff, Patrizio; Chełmiński, Krzysztof
    H1loc-stress and strain regularity in Cosserat plasticity
    In: ZAMM: Zeitschrift für Angewandte Mathematik und Mechanik Jg. 89 (2009) Nr. 4, S. 257 - 266
    ISSN: 1521-4001; 0044-2267
  • Neff, Patrizio; Jeong, Jena; Münch, Ingo
    Mean field modeling of isotropic random Cauchy elasticity versus microstretch elasticity
    In: Zeitschrift für Angewandte Mathematik und Physik Jg. 60 (2009) Nr. 3, S. 479 - 497
    ISSN: 0044-2275; 1420-9039
  • Ebbing, Vera; Schröder, Jörg; Neff, Patrizio; Gruttmann, Friedrich
    Micromechanical Modeling of Woven Fiber Composites for the Construction of Effective Anisotropic Polyconvex Energies
    In: Proceedings in Applied Mathematics and Mechanics: PAMM / 80th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Gdansk 2009; Jg. 10 (2009) Nr. 1, Special Issue: 80th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Gdansk 2009, S. 333 - 334
    ISSN: 1617-7061
  • Neff, Patrizio; Sydow, Antje; Wieners, Christian
    Numerical approximation of incremental infinitesimal gradient plasticity
    In: International journal for numerical methods in engineering Jg. 77 (2009) Nr. 3, S. 414 - 436
    ISSN: 1097-0207
  • Neff, Patrizio; Menzel, Andreas; Svendsen, Bob
    On Constitutive and Configurational Aspects of Models for Gradient Continua with Microstructure
    In: ZAMM: Zeitschrift für Angewandte Mathematik und Mechanik Jg. 89 (2009) Nr. 8, S. 687 - 697
    ISSN: 1521-4001; 0044-2267
  • Neff, Patrizio; Münch, Ingo
    Simple shear in nonlinear Cosserat elasticity: Bifurcation and induced microstructure
    In: Continuum mechanics and thermodynamics Jg. 21 (2009) Nr. 3, S. 195 - 221
    ISSN: 0935-1175; 1432-0959
  • Neff, Patrizio; Ramézani, Hamidréza; Jeong, Jena
    Subgrid interaction and micro-randomness : Novel invariance requirements in infinitesimal gradient elasticity
    In: International Journal of Solids and Structures Jg. 46 (2009) Nr. 25-26, S. 4261 - 4276
    ISSN: 0020-7683
  • Neff, Patrizio; Jeong, Jena; Hong, Kwon-Il
    The Reissner-Mindlin plate is the Gamma-limit of Cosserat elasticity
    In: Proceedings in Applied Mathematics and Mechanics (PAMM) / 80th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Gdansk 2009; Jg. 9 (2009) Nr. 1, Special Issue: 80th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Gdansk 2009, S. 541 - 542
    ISSN: 1617-7061
  • Neff, Patrizio; Wagner, W.; Münch, Ingo
    Theory and FE-analysis for structures with large deformation under magnetic loading
    In: Computational Mechanics Jg. 44 (2009) Nr. 1, S. 93 - 102
    ISSN: 0178-7675; 1432-0924
  • Neff, Patrizio; Weinberg, Kerstin
    A geometrically exact thin membrane model : Investigation of large deformations and wrinkling
    In: International journal for numerical methods in engineering Jg. 74 (2008) Nr. 6, S. 871 - 893
    ISSN: 1097-0207; 0029-5981
  • Neff, Patrizio; Chełmiński, Krzysztof
    A note on approximation of Prandtl-Reuss plasticity through Cosserat plasticity
    In: Quarterly of applied mathematics Jg. 66 (2008) Nr. 2, S. 351 - 357
    ISSN: 0033-569X; 1552-4485
  • Schröder, Jörg; Neff, Patrizio; Ebbing, Vera
    Anisotropic Polyconvex Energies on the Basis of Crystallographic Motivated Structural Tensors.
    In: Journal of the Mechanics and Physics of Solids Jg. 56 (2008) Nr. 12, S. 3486 - 3506
    ISSN: 0022-5096
  • Neff, Patrizio; Münch, Ingo
    Curl bounds Grad on SO(3)
    In: ESAIM Control Optimisation and Calculus of Variations Jg. 14 (2008) Nr. 1, S. 148 - 159
    ISSN: 1292-8119; 1262-3377
  • Neff, Patrizio; Klawonn, Axel; Vanisy, Stefanie; Rheinbach, Oliver
    FETI-DP Methods for P-Elasticity
    In: Proceedings in Applied Mathematics and Mechanics (PAMM) / 79th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), 31 March - 4 April 2008, Bremen, Germany; Jg. 8 (2008) Nr. 1, Special Issue: 79th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Bremen 2008, S. 10859 - 10860
    ISSN: 1617-7061
  • Neff, Patrizio; Münch, Ingo; Wagner, Werner
    Microstructural behaviour of transversal isotropic material
    In: Proceedings in Applied Mathematics and Mechanics (PAMM) / 79th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), 31 March - 4 April 2008, Bremen, Germany; Jg. 8 (2008) Nr. 1, Special Issue: 79th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Bremen 2008, S. 10559 - 10560
    ISSN: 1617-7061
  • Neff, Patrizio; Chełmiński, Krzysztof; Alber, Hans-Dieter
    Notes on strain gradient plasticity: finite strain covariant modeling and global existence in the infinitesimal rate - independent case
    In: Mathematical models and methods in applied sciences Jg. 19 (2008) Nr. 2, S. 307 - 346
    ISSN: 1793-6314
  • Neff, Patrizio; Müller, Wolfgang; Wieners, Christian
    Numerical results for an elasto‐plastic Cosserat model with more than one million dof in 3D
    In: Proceedings in Applied Mathematics and Mechanics (PAMM) / 79th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), 31 March - 4 April 2008, Bremen, Germany; Jg. 8 (2008) Nr. 1, Special Issue: 79th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Bremen 2008, S. 10557 - 10558
    ISSN: 1617-7061
  • Neff, Patrizio; Ebbing, Vera; Schröder, Jörg
    Polyconvex Models for Arbitrary Anisotropic Materials
    In: Proceedings in Applied Mathematics and Mechanics: PAMM / 79th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), 31 March - 4 April 2008, Bremen, Germany; Jg. 8 (2008) Nr. 1, Special Issue: 79th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Bremen 2008, S. 10415 - 10416
    ISSN: 1617-7061
  • Neff, Patrizio; Knees, Dorothee
    Regularity up to the Boundary for Nonlinear Elliptic Systems Arising in Time-Incremental Infinitesimal Elasto-plasticity
    In: SIAM Journal on Mathematical Analysis Jg. 40 (2008) Nr. 1, S. 21 - 43
    ISSN: 1095-7154; 0036-1410
  • Neff, Patrizio
    Remarks on invariant modelling in finite strain gradient plasticity
    In: Technische Mechanik: wissenschaftliche Zeitschrift für Anwendungen der technischen Mechanik Jg. 28 (2008) Nr. 1, S. 13 - 22
    ISSN: 2199-9244
  • Neff, Patrizio; Münch, Ingo; Fischle, Andreas
    Symmetric Cauchy stresses do not imply symmetric Biot strains in weak formulations of isotropic hyperelasticity with rotational degrees of freedom
    In: Acta Mechanica Jg. 197 (2008) Nr. 1, S. 19 - 30
    ISSN: 0001-5970; 1619-6937
  • Neff, Patrizio; Fischle, Andreas; Münch, Ingo
    Symmetric Cauchy stresses do not imply symmetric Biot strains in weak formulations of isotropic hyperelasticity with rotational degrees of freedom
    In: Proceedings in Applied Mathematics and Mechanics (PAMM) / 79th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), 31 March - 4 April 2008, Bremen, Germany; Jg. 8 (2008) Nr. 1, Special Issue: 79th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Bremen 2008, S. 10419 - 10420
    ISSN: 1617-7061
  • Neff, Patrizio; Chełmiński, Krzysztof
    A geometrically exact Cosserat shell-model for defective elastic crystals : Justification via Γ-convergence
    In: Interfaces and free boundaries Jg. 9 (2007) Nr. 4, S. 455 - 492
    ISSN: 1463-9971
  • Neff, Patrizio; Weinberg, Kerstin
    A geometrically exact membrane model for isotropic foils and fabrics
    In: Proceedings in Applied Mathematics and Mechanics (PAMM) / 6th International Congress on Industrial Applied Mathematics (ICIAM07) and GAMM Annual Meeting, Zürich 2007; Jg. 7 (2007) Nr. 1, Special Issue: Sixth International Congress on Industrial Applied Mathematics (ICIAM07) and GAMM Annual Meeting, Zürich 2007, S. 4030007 - 4030008
    ISSN: 1617-7061
  • Neff, Patrizio; Forest, Samuel
    A geometrically exact micromorphic model for elastic metallic foams accounting for affine microstructure : modelling, existence of minimizers, identification of moduli and computational results
    In: Journal of elasticity: the physical and mathematical science of solids Jg. 87 (2007) Nr. 2, S. 239 - 276
    ISSN: 0374-3535; 1573-2681
  • Neff, Patrizio
    A geometrically exact planar Cosserat shell model with microstructure : existence of minimizers for zero Cosserat couple modulus
    In: Mathematical models and methods in applied sciences Jg. 17 (2007) Nr. 3, S. 363 - 392
    ISSN: 0218-2025; 1793-6314
  • Neff, Patrizio
    Global existence in rate-independent infinitesimal strain gradient plasticity
    In: Proceedings in Applied Mathematics and Mechanics (PAMM) / 6th International Congress on Industrial Applied Mathematics (ICIAM07) and GAMM Annual Meeting, Zürich 2007 Jg. 7 (2007) Nr. 1, Special Issue: Sixth International Congress on Industrial Applied Mathematics (ICIAM07) and GAMM Annual Meeting, Zürich 2007, S. 4080037 - 4080038
    ISSN: 1617-7061
  • Ebbing, Vera; Schröder, Jörg; Neff, Patrizio
    On the construction of anisotropic polyconvex energy densities
    In: Proceedings in Applied Mathematics and Mechanics: PAMM / 6th International Congress on Industrial and Applied Mathematics, ICIAM07, and GAMM Annual Meeting , 16–20 July 2007, Zürich; Jg. 7 (2007) Nr. 1, Special Issue: Sixth International Congress on Industrial Applied Mathematics (ICIAM07) and GAMM Annual Meeting, Zürich 2007, S. 4060009 - 4060010
    ISSN: 1617-7061
  • Neff, Patrizio; Chełmiński, Krzysztof
    Well-posedness of dynamic Cosserat plasticity
    In: Applied Mathematics & Optimization Jg. 56 (2007) Nr. 1, S. 19 - 35
    ISSN: 0095-4616; 1432-0606
  • Neff, Patrizio
    A finite-strain elastic–plastic Cosserat theory for polycrystals with grain rotations
    In: International Journal of engineering science Jg. 44 (2006) Nr. 8-9, S. 574 - 594
    ISSN: 0020-7225
  • Neff, Patrizio; Merodio, J.
    A note on tensile instabilities and loss of ellipticity for a fiber-reinforced nonlinearly elastic solid
    In: Archives of mechanics: (=Archiwum mechaniki stosowanej) Jg. 58 (2006) Nr. 3, S. 293 - 303
    ISSN: 0373-2029
  • Balzani, Daniel; Neff, Patrizio; Schröder, Jörg; Holzapfel, Gerhard A.
    A polyconvex framework for soft biological tissues : Adjustment to experimental data
    In: International Journal of Solids and Structures Jg. 43 (2006) Nr. 20, S. 6052 - 6070
    ISSN: 0020-7683
  • Neff, Patrizio; Münch, Ingo; Wagner, W.
    Constitutive modeling and FEM for a nonlinear Cosserat continuum
    In: Proceedings in Applied Mathematics and Mechanics (PAMM) / 77th Annual Meeting GAMM, 27–31 March 2006, TU Berlin, Germany; Jg. 6 (2006) Nr. 1, Special Issue: GAMM Annual Meeting 2006 – Berlin, S. 499 - 500
    ISSN: 1617-7061
  • Neff, Patrizio
    Existence of minimizers for a finite-strain micromorphic elastic solid
    In: Proceedings of the Royal Society of Edinburgh, Section A: Mathematics Jg. 136 (2006) Nr. 5, S. 997 - 1012
    ISSN: 0308-2105; 1473-7124
  • Neff, Patrizio; Balzani, Daniel; Schröder, Joachim; Holzapfel, Gerhard
    Materially stable constitutive equations for arterial walls based on polyconvex energies : application to damage modeling and residual stresses
    In: Journal of Biomechanics / 5th World Congress of Biomechanics, Munich, July 29th - August 4th 2006; Jg. 39 (2006) Nr. Supplement 1: Abstracts of the 5th World Congress of Biomechanics, S. 409
    ISSN: 0021-9290
  • Neff, Patrizio
    The Cosserat couple modulus for continuous solids is zero viz the linearized Cauchy‐stress tensor is symmetric
    In: ZAMM: Zeitschrift für Angewandte Mathematik und Mechanik Jg. 86 (2006) Nr. 11, S. 892 - 912
    ISSN: 1521-4001; 0044-2267
  • Neff, Patrizio
    A geometrically exact viscoplastic membrane-shell with viscoelastic transverse shear resistance avoiding degeneracy in the thin-shell limit : Part I: The viscoelastic membrane-plate
    In: Zeitschrift für Angewandte Mathematik und Physik Jg. 56 (2005) Nr. 1, S. 148 - 182
    ISSN: 0044-2275; 1420-9039
  • Schröder, Jörg; Neff, Patrizio; Balzani, Daniel
    A variational approach for materially stable anisotropic hyperelasticity
    In: International Journal of Solids and Structures Jg. 42 (2005) Nr. 15, S. 4352 - 4371
    ISSN: 0020-7683
  • Neff, Patrizio
    Critique of "Two-dimensional examples of rank-one convex functions that are not quasiconvex" by M. K. Benaouda and J. J. Telega
    In: Annales Polonici Mathematici Jg. 86 (2005) Nr. 2, S. 193 - 195
    ISSN: 0066-2216; 1730-6272
  • Neff, Patrizio; Chełmiński, Krzysztof
    Infinitesimal elastic–plastic Cosserat micropolar theory : modelling and global existence in the rate-independent case
    In: Proceedings of the Royal Society of Edinburgh, Section A: Mathematics Jg. 135 (2005) Nr. 5, S. 1017 - 1039
    ISSN: 0308-2105; 1473-7124
  • Neff, Patrizio
    Local existence and uniqueness for a geometrically exact membrane‐plate with viscoelastic transverse shear resistance
    In: Mathematical methods in the applied sciences Jg. 28 (2005) Nr. 9, S. 1031 - 1060
    ISSN: 1099-1476
  • Neff, Patrizio
    Local existence and uniqueness for quasistatic finite plasticity with grain boundary relaxation
    In: Quarterly of applied mathematics Jg. 63 (2005) Nr. 1, S. 88 - 116
    ISSN: 1552-4485; 0033-569X
  • Neff, Patrizio
    The Γ-limit of a finite strain Cosserat model for asymptotycally thin domains and a consequence for the Cosserat couple modulus
    In: Proceedings in Applied Mathematics and Mechanics (PAMM) / GAMM Annual Meeting 2005, 28 March–01 April 2005, Luxembourg Jg. 5 (2005) Nr. 1, Special Issue: GAMM Annual Meeting 2005 – Luxembourg, S. 629 - 630
    ISSN: 1617-7061
  • Neff, Patrizio
    A geometrically exact Cosserat shell-model including size effects, avoiding degeneracy in the thin shell limit : Part I: Formal dimensional reduction for elastic plates and existence of minimizers for positive Cosserat couple modulus
    In: Continuum mechanics and thermodynamics Jg. 16 (2004) Nr. 6, S. 577 - 628
    ISSN: 0935-1175; 1432-0959
  • Neff, Patrizio
    Existence of minimizers for a geometrically exact Cosserat solid
    In: Proceedings in Applied Mathematics and Mechanics (PAMM) Jg. 4 (2004) Nr. 1, S. 548 - 549
    ISSN: 1617-7061
  • Neff, Patrizio
    Optimal BV estimates for a discontinuous Galerkin method in linear elasticity
    In: Applied mathematics research eXpress Jg. 3 (2004) S. 73 - 106
    ISSN: 1687-1197; 1687-1200
  • Neff, Patrizio; Wieners, Christian
    Comparison of models for finite plasticity : a numerical study
    In: Computing and Visualization in Science Jg. 6 (2003) Nr. 1, Seiten 23 - 35
    ISSN: 1432-9360; 1433-0369
  • Schröder, Jörg; Neff, Patrizio
    Construction of polyconvex, anisotropic free-energy functions
    In: Proceedings in Applied Mathematics and Mechanics: PAMM Jg. 2 (2003) Nr. 1, S. 172 - 173
    ISSN: 1617-7061
  • Neff, Patrizio
    Finite multiplicative plasticity for small elastic strains with linear balance equations and grain boundary relaxation
    In: Continuum mechanics and thermodynamics Jg. 15 (2003) Nr. 2, Seiten 161-195
    ISSN: 0935-1175; 1432-0959
  • Schröder, Jörg; Neff, Patrizio
    Invariant formulation of hyperelastic transverse isotropy based on polyconvex free energy functions
    In: International Journal of Solids and Structures Jg. 40 (2003) S. 401 - 445
    ISSN: 0020-7683
  • Neff, Patrizio
    Polyconvexity of generalized polynomial-type hyperelastic strain energy funtions for near-incompressibility
    In: International Journal of Solids and Structures Jg. 40 (2003) Nr. 11, S. 2767 - 2791
    ISSN: 0020-7683
  • Neff, Patrizio
    On Korn's first inequality with non-constant coefficients
    In: Proceedings of the Royal Society of Edinburgh, Section A: Mathematics Jg. 132 (2002) Nr. 1, S. 221 - 243
    ISSN: 0308-2105; 1473-7124
  • Neff, Patrizio
    On a viscoplastic approximation in finite plasticity
    In: Proceedings in Applied Mathematics and Mechanics (PAMM) Jg. 1 (2002) Nr. 1, S. 403 - 404
    ISSN: 1617-7061
  • Neff, Patrizio
    A model describing small elastic deformations and Korn's inequality with nonconstant coefficients
    In: ZAMM: Zeitschrift für Angewandte Mathematik und Mechanik Jg. 81 (2001) Nr. S3, S. 607 - 608
    ISSN: 0044-2267; 1521-4001
  • Aufsätze

  • Neff, Patrizio; Mihai, L Angela
    Injectivity of the Cauchy-stress tensor along rank-one connected lines under strict rank-one convexity condition
    (2016) 4 Seiten 4 Seiten
  • Neff, Patrizio; Madeo, Angela; Collet, Manuel; Miniaci, Marco; Billon, Kévin; Ouisse, Morvan
    Modeling real phononic crystals via the weighted relaxed micromorphic model with free and gradient micro-inertia
    (2016) 24 Seiten 24 Seiten
  • Neff, Patrizio; Münch, Ingo;
    On isotropy conditions in second gradient materials
    87th Annual Meeting of the International Association of Applied Mathematics and Mechanics, GAMM 2016, March 7.-11.2016, Braunschweig, Germany,
    (2016)
  • Neff, Patrizio; Fischle, Andreas; Borisov, Lev
    Optimality of the relaxed polar factors by a characterization of the set of real square roots of real symmetric matrices
    (2016) 23 -Seiten 23 -Seiten
  • Neff, Patrizio; Fischle, Andreas; Raabe, Dierk;
    The relaxed-polar mechanism of locally optimal Cosserat rotations for an idealized nanoindentation and comparison with 3D-EBSD experiments
    Emerging trends in applied mathematics and mechanics, ETAMM 2016, May 30 - June 3, 2016, Perpignan, France,
    (2016) 28 Seiten 28 Seiten
  • Neff, Patrizio
    A generalization of Korn’s first inequality to incompatible tensor fields with applications in gradient plasticity
    (2015)
  • Neff, Patrizio; Ghiba, Dumitrel; Münch, Ingo; Madeo, Angela
    Correct traction boundary conditions in the indeterminate couple stress model
    (2015) 4 Seiten 4 Seiten
  • Neff, Patrizio; Ebobisse, Francois; Reddy, B. Daya
    Existence results in dislocation based rate-independent isotropic gradient plasticity with kinematical hardening and plastic spin: The case with symmetric local backstress
    (2015) 28 Seiten 28 Seiten
  • Neff, Patrizio; Lankeit, Johannes; Osterbrink, Frank
    Integrability conditions between the first and second Cosserat deformation tensor in geometrically nonlinear micropolar models and existence of minimizers
    (2015) 17 Seiten 17 Seiten
  • Neff, Patrizio
    The sum of squared logarithms conjecture
    (2015)
  • Neff, Patrizio; Ghiba, Dumitrel; Lankeit, Johannes
    Rank one convexity of the exponentiated Hencky-logarithmic strain energy in finite elastostatics
    (2014)
  • Neff, Patrizio; Martin, Robert; Eidel, Bernhard
    The axiomatic deduction of the quadratic Hencky strain energy by Heinrich Hencky
    (2014) 27 Seiten 27 Seiten
  • Neff, Patrizio; Klawonn, Axel; Vanis, Stefanie; Rheinbach, Oliver
    Notes on FETI-DP domain decomposition methods for P-elasticity
    (2010)
  • Neff, Patrizio; Münch, Ingo; Wagner, W.
    Experiment and modelling of the microstructural behaviour for transversaly isotropic materials under tension loading
    (2008) 8 Seiten 8 Seiten
  • Neff, Patrizio
    Reconsidering the linear isotropic indeterminate couple stress model (Koiter-Mindlin-Toupin-model)
    (2008) 4 Seiten 4 Seiten
  • Neff, Patrizio
    Relations of constants for isotropic linear Cosserat elasticity
    (2008) 4 Seiten 4 Seiten
  • Neff, Patrizio;
    Bella Figura in Udine : Report zum CISM-Kurs in Udine
    CISM-Kurs "Poly-, Quasi-, and Rank-One Convexity in applied mechanics", 24.09. bis 28.09.2007 in Udine, Italien.,
    (2007)
  • Vorworte / Nachworte

  • Neff, Patrizio; Alber, Hans-Dieter
    Preface of the guest-editors Authors
    In: GAMM-Mitteilungen / ISIMM-workshop on mathematical problems of solid mechanics, TU Darmstadt, Darmstadt, Germany, October 8–9, 2009; Jg. 34 (2011) Nr. 1, S. 8 - 9
    ISSN: 1522-2608
  • Schröder, Jörg; Neff, Patrizio
    Preface
    In: Poly-, Quasi- and Rank-One Convexity in Applied Mechanics Schröder, Jörg; Neff, Patrizio (Hrsg.) (2010)
    ISBN: 978-3-7091-0173-5; 978-3-7091-0174-2 ISSN: 0254-1971
  • Abstracts

  • Lankeit, Johannes; Neff, Patrizio; Pauly, Dirk
    Unique continuation for first-order systems with integrable coefficients and applications to elasticity and plasticity
    In: Comptes rendus mathematique: Académie des Sciences Jg. 351 (2013) Nr. 5/6, S. 247 - 250
    ISSN: 1631-073X
  • Beiträge in Sammelwerken und Tagungsbänden

  • Madeo, Angela; Neff, Patrizio
    Dispersion of waves in micromorphic media and metamaterials
    In: Handbook of nonlocal continuum mechanics for materials and structures Voyiadjis, George Z.; (Hrsg.) 2019, S. 713 - 739
    ISBN: 978-3-319-58729-5; 978-3-319-58727-1; 3-319-58727-7; 978-3-319-58728-8
  • Madeo, Angela; Neff, Patrizio; Barbagallo, Gabriele; D’Agostino, Marco Valerio; Ghiba, Ionel-Dumitrel
    A review on wave propagation modeling in band-gap metamaterials via enriched continuum models
    In: Mathematical modelling in solid mechanics dell'Isola, Francesco; Sofonea, Mircea; Steigmann, David; (Hrsg.) 2017, S. 89 - 105
    ISBN: 978-981-10-3763-4; 978-981-10-3764-1
  • Birsan, Mircea; Neff, Patrizio
    Analysis of the deformation of cosserat elastic shells using the dislocation density tensor
    In: Mathematical Modelling in Solid Mechanics / International conference on Emerging Trends in Applied Mathematics and Mechanics, ETAMM 2016; Perpignan; France; 30 May 2016 through 3 June 2016 / dell'Isola, Francesco; Sofonea, MirceaSteigmann, David (Hrsg.) 2017, S. 13 - 30
    ISBN: 9789811037634; 978-981-10-3764-1 ISSN: 1869-8441; 1869-8433
  • Baaser, Herbert; Nedjar, Boumedienne; Martin, Robert; Neff, Patrizio
    Eversion of tubes : Comparison of material models
    In: Constitutive Models for Rubber X: Proceedings of the 10th European Conference on Constitutive Models for Rubbers X / ECCMR X 2017; Munich; Germany; 28 - 31 August 2017; 2017, S. 109 - 113
    ISBN: 9781138030015
  • Neff, Patrizio; Martin, Robert; Eidel, Bernhard
    New thoughts in nonlinear elasticity theory via Hencky’s logarithmic strain tensor
    In: Mathematical Modelling in Solid Mechanics / International Conference on Emerging Trends in Applied Mathematics and Mechanics, ETAMM 2016; Perpignan; France; 30 May 2016 through 3 June 2016 / dell'Isola, Francesco; Sofonea, Mircea; Steigmann, David (Hrsg.) 2017, S. 165 - 180
    ISBN: 9789811037634; 978-981-10-3764-1
  • Neff, Patrizio; Ghiba, Dumitrel
    Comparison of isotropic elasto-plastic models for the plastic metric tensor C_p=F_p^T F_p
    In: Innovative Numerical Approaches for Multi-Field and Multi-Scale Problems: in Honor of Michael Ortiz's 60th Birthday / Oritz, Michael / Weinberg, Kerstin; Pandolfi, Anna (Hrsg.) 2016
    ISBN: 978-3-319-39021-5; 978-3-319-39022-2
  • Birsan, Mircea; Neff, Patrizio
    On the dislocation density tensor in the Cosserat theory of elastic shells
    In: Advanced methods of continuum mechanics for materials and structures Naumenko, Konstantin; Aßmus, Marcus (Hrsg.) 2016, S. 391 - 413
    ISBN: 978-981-10-0958-7; 978-981-10-0959-4
  • Neff, Patrizio
    Existence of Minimizers in Nonlinear Elastostatics of Micromorphic Solids
    In: Encyclopedia of Thermal Stresses Hetnarski, Richard B. (Hrsg.) 2014, S. 1475 - 1485
    ISBN: 978-94-007-2738-0; 978-94-007-2739-7
  • Neff, Patrizio; Pauly, Dirk; Witsch, Karl-Josef
    On an extension of Korn's first inequality to incompatible tensor fields on domains of arbitrary dimensions
    In: Modeling, Simulation and Optimization for Science and Technology Fitzgibbon, William; (Hrsg.) 2014, S. 139 - 159
    ISBN: 978-94-017-9053-6; 978-94-017-9054-3
  • Birsan, Mircea; Neff, Patrizio
    On the characterization of drilling rotation in the 6-parameter resultant shell theory
    In: Shell Structures: Theory and Applications: Proceedings of the 10th SSTA 2013 Conference / 10th SSTA Conference, Gdansk, Poland 16. - 18. October 2013; / Pietraszkiewicz, Wojciech (Hrsg.) Jg. 3 2014, S. 61 - 64
    ISBN: 9781138000827
  • Neff, Patrizio; Münch, Ingo; Wagner, Werner
    A micropolar continuum model for large deformation caused by magnetic or electric fields
    In: Behavior and Mechanics of Multifunctional Materials and Composites / Behavior and Mechanics of Multifunctional Materials and Composites 20011, 7–9 March 2011 San Diego, California, United States; / Ounaies, Zoubeida; (Hrsg.) 2011, S. 24
    ISBN: 978-0-8194-8540-3 ISSN: 0277-786X
  • Münch, Ingo; Neff, Patrizio
    A nonlinear micropolar continuum theory for initial plasticity
    In: Advances and Trends in Structural Engineering, Mechanics and Computation / Fourth International Conference on Structural Engineering, Mechanics and Computation, SEMC 2010, Cape Town, South Africa, 6-8 September 2010; / Zingoni, Alphose (Hrsg.) 2010, S. 65 - 66
    ISBN: 978-0-415-58472-2; 978-0-415-61815-1
  • Balzani, Daniel; Schröder, Jörg; Neff, Patrizio
    Applications of anisotropic polyconvex energies : thin shells and biomechanics of arterial walls
    In: Poly-, Quasi- and Rank-One Convexity in Applied Mechanics Schröder, Jörg; Neff, Patrizio; (Hrsg.) 2010, S. 131 - 176
    ISBN: 978-3-7091-0173-5
  • Ebbing, Vera; Schröder, Jörg; Neff, Patrizio
    Construction of polyconvex energies for non-trivial anisotropy classes
    In: Poly-, quasi- and rank-one convexity in applied mechanics Schröder, Jörg; (Hrsg.) 2010, S. 107 - 130
    ISBN: 978-3-7091-0173-5
  • Neff, Patrizio; Jeong, Jena; Münch, Ingo; Ramézani, Hamidréza
    Linear Cosserat Elasticity, Conformal Curvature and Bounded Stiffness
    In: Mechanics of Generalized Continua: One Hundred Years After the Cosserats Maugin, Gérard A.; (Hrsg.) 2010, S. 55 - 63
    ISBN: 978-1-4419-5694-1
  • Schröder, Jörg; Neff, Patrizio; Ebbing, Vera
    Polyconvex energies for trigonal, tetragonal and cubic symmetry groups
    In: IUTAM Symposium on Variational Concepts with Applications to the Mechanics of Materials: Proceedings of the IUTAM Symposium on Variational Concepts with Applications to the Mechanics of Materials / IUTAM Symposium on Variational Concepts with Applications to the Mechanics of Materials, 22-26 September 2008, Bochum, Germany; / Hackl, Klaus; (Hrsg.) 2010, S. 221 - 232
    ISBN: 978-90-481-9194-9; 978-90-481-9195-6
  • Neff, Patrizio; Hong, K.-I.
    The Reissner-Mindlin plate is the Γ-limit of linear Cosserat elasticity
    In: Shell Structures: Theory and Applications: Volume 2 : Proceedings of the 9th SSTA Conference / Pietraszkiewicz, Wojciech; Kreja, IreneuszSSTA Conference, Gdańsk - Jurata, Poland, 14 - 16 October 2009 2010, S. 91 - 94
    ISBN: 978-0-203-85976-6; 978-0-415-54883-0
  • Neff, Patrizio
    Γ-convergence for a geometrically exact Cosserat shell-model of defective elastic crystals
    In: Poly-, Quasi- and Rank-One Convexity in Applied Mechanics Schröder, JörgNeff, Patrizio (Hrsg.) 2010, S. 301 - 361
    ISBN: 978-3-7091-0173-5; 978-3-7091-0174-2
  • Ebbing, Vera; Schröder, Jörg; Steinmann, Paul; Neff, Patrizio
    On the computation of configurational forces in anisotropic hyperelastic solids
    In: IUTAM Symposium on Progress in the Theory and Numerics of Configurational Mechanics: Proceedings of the IUTAM Symposium held in Erlangen, Germany, October 20-24, 2008 / IUTAM Symposium on Progress in the Theory and Numerics of Configurational Mechanics, 20-24 October 2008, Erlangen, Germany; / Steinmann, Paul; (Hrsg.) 2009, S. 261 - 270
    ISBN: 978-90-481-3446-5; 978-90-481-3447-2
  • Neff, Patrizio; Hong, K.-I.
    The Reissner-Mindlin plate is the Gamma-limit of linear Cosserat elasticity
    In: Shell Structures: Theory and Applications: Proceedings of the 9th SSTA Conference, Jurata, Poland, 14-16 October 2009. - Band 2 / 9th SSTA Conference, Jurata, Poland, 14-16 October 2009 / Pietraszkiewicz, Wojciech; (Hrsg.) 2009, S. 91 - 94
    ISBN: 978-0-415-54883-0; 978-0-203-85976-6
  • Neff, Patrizio; Münch, Ingo; Wagner, Werner
    3D Modeling of Thin-Walled Structures : Physical applications for a nonlinear micropolar formulation on shells
    In: Proceedings of the 6th International Conference on Computation of Shell & Spatial Structures: Spanning Nano to Mega / 6th International Conference on Computation of Shell & Spatial Structures: IASS-IACM 2008 - "Spanning Nano to Mega" 28-31 May 2008, Cornell University, Ithaca, New York, USA; / Abel, J.; (Hrsg.) 2008, S. 17 - 21
    ISBN: 978-1-62276-364-1
  • Neff, Patrizio
    Uniqueness of Strong Solutions in Infinitesimal Perfect Gradient-Plasticity with Plastic Spin
    In: UTAM Symposium on Theoretical, Computational and Modelling Aspects of Inelastic Media: Proceedings of the IUTAM Symposium held at Cape Town, South Africa, January 14–18, 2008 / IUTAM Symposium Cape Town, South Africa, January 14–18, 2008 / Reddy, B. Daya (Hrsg.) 2008, S. 129 - 140
    ISBN: 978-1-4020-9089-9; 978-1-4020-9090-5
  • Schröder, Jörg; Neff, Patrizio
    Polyconvex anisotropic hyperelastic energies
    In: III European Conference on Computational Mechanics (ECCM III): Solids, Structures and Coupled Problems in Engineering: Book of Abstracts / III European Conference on Computational Mechanics (ECCM III), Solids, Structures and Coupled Problems in Engineering, 5.-8-. Juni 2006, Lissabon, Portugal; 2006, S. 272
    ISBN: 978-1-4020-4994-1; 978-1-4020-5370-2
  • Balzani, Daniel; Schröder, Jörg; Gross, Dietmar; Neff, Patrizio
    Modeling of anisotropic damage in arterial walls based on polyconvex stored energy functions
    In: Computational plasticity: fundamentals and applications : proceedings of the Eighth International Conference on Computational Plasticity held in Barcelona, Spain, 5th - 7th September 2005 / VIII International Conference on Computational Plasticity, COMPLAS VIII, 5. - 7. September 2005, Barcelona; / Owen, D. R. J.; (Hrsg.) 2005, S. 802 - 805
    ISBN: 84-95999-80-3
  • Neff, Patrizio
    On material constants for micromorphic continua
    In: Trends in applications of mathematics to mechanics: proceedings of the XIVth International Symposium on Trends in Applications of Mathematics to Mechanics (STAMM2004) Seeheim, Germany, 22, 28 August 2004 / XIVth International Symposium on Trends in Applications of Mathematics to Mechanics (STAMM2004) Seeheim, Germany, 22, 28 August 2004 / Wang, Yongqi (Hrsg.) 2005, S. 337 - 348
    ISBN: 978-3-8322-3600-7
  • Neff, Patrizio
    Local existence and uniqueness for a model of finite multiplicative visco-plasticity and the role of an extended Korn's first inequality
    In: Progress in Analysis: Proceedings of the 3rd ISAAC Congress Berlin, Germany, 20 – 25 August 2001 , Band 2 / 3rd ISAAC Congress Berlin, Germany, 20 – 25 August 2001 / Begehr, Heinrich (Hrsg.) 2003, S. 1311 - 1315
    ISBN: 981-238-967-9
  • Schröder, Jörg; Neff, Patrizio
    On the construction of polyconvex anisotropic free energy functions
    In: IUTAM-symposium on computational mechanics of solid materials at large strains / IUTAM Symposium, 20–24 August 2001, Stuttgart, Germany / Miehe, Christian; (Hrsg.) 2003, S. 171 - 180
    ISBN: 978-1-4020-1170-2; 978-90-481-6239-0
  • Neff, Patrizio
    Some results concerning the mathematical treatment of finite plasticity
    In: Deformation and failure in metallic materials Hutter, Kolumban (Hrsg.) 2003, S. 251 - 274
    ISBN: 978-3-642-05649-9; 978-3-540-36564-8
  • Schröder, Jörg; Neff, Patrizio
    Application of polyconvex anisotropic free energies to soft tissues
    In: Proceedings of the Fifth World Congress on Computational Mechanics / Fifth World Congress on Computational Mechanics, 7-12 July 2002, Vienna, Austria; 2002
    ISBN: 3-9501554-0-6
  • Bücher/Sammelwerke/Tagungsbände

  • Neff, Patrizio
    The geometrically nonlinear Cosserat micropolar shear-stretch energy : Part I: A general parameter reduction formula and energy-minimizing microrotations in 2D
    (2016) 21 Seiten 21 Seiten
    (Schriftenreihe der Fakultät für Mathematik / Universität Duisburg-Essen ; 795)
  • Neff, Patrizio; Ghiba, Dumitrel; Madeo, Angela; Münch, Ingo
    The modifed indeterminate couple stress model : Why Yang et al.'s arguments motivating a symmetric couple stress tensor contain a gap and why the couple stress tensor may be chosen symmetric nevertheless
    (2016) 37 Seiten 37 Seiten
    (Schriftenreihe der Fakultät für Mathematik / Universität Duisburg-Essen ; 796)
  • Neff, Patrizio; Pompe, Waldemar
    Counterexamples in the theory of coerciveness for linear elliptic systems related to generalizations of Korn's second inequality
    (2013) 8 S. 8 S.
    (Schriftenreihe der Fakultät für Mathematik / Universität Duisburg-Essen ; 765)
  • Birsan, Mircea; Neff, Patrizio
    Existence of minimizers in the geometrically non-linear 6-parameter resultant shell theory with drilling rotations
    (2013) 31 S. 31 S.
    (Schriftenreihe der Fakultät für Mathematik / Universität Duisburg-Essen ; 761)
  • Neff, Patrizio; Pauly, Dirk; Witsch, Karl-Josef
    On an extension of Korn's first inequality to incompatible tensor fields on domains of arbitrary dimensions
    (2013) 24 S. 24 S.
    (Schriftenreihe der Fakultät für Mathematik / Universität Duisburg-Essen ; 763)
  • Neff, Patrizio; Pauly, Dirk; Witsch, Karl-Josef
    Poincaré meets Korn via Maxwell : extending Korn's first inequality to incompatible tensor fields
    (2013) 39 S. 39 S.
    (Schriftenreihe der Fakultät für Mathematik / Universität Duisburg-Essen ; 753)
  • Birsan, Mircea; Neff, Patrizio; Lankeit, Johannes
    Sum of squared logarithms : an inequality relating positive definite matrices and their matrix logarithm
    (2013) 16 S. 16 S.
    (Schriftenreihe der Fakultät für Mathematik / Universität Duisburg-Essen ; 762)
  • Neff, Patrizio; Nakatsukasa, Yuji; Fischle, Andreas
    The unitary polarv factor Q = U p minimizes Log (Q Z) 2 and sym Log(Q Z) 2 in the spectral norm in any dimension and the Frobenius matrix norm in three dimensions
    (2013) 29 S. 29 S.
    (Schriftenreihe der Fakultät für Mathematik / Universität Duisburg-Essen ; 764)
  • Birsan, Mircea; Neff, Patrizio
    Existence theorems in the geometrically non-linear 6-parametric theory of elastic plates
    (2012) 19 S. 19 S.
    (Schriftenreihe der Fakultät für Mathematik / Universität Duisburg-Essen ; 754)
  • Lankeit, Johannes; Neff, Patrizio; Pauly, Dirk
    Uniqueness of integrable solutions to nabla zeta = G zeta zeta gamma = 0 or integrable tensor
    (2012) 9 S. 9 S.
    (Schriftenreihe der Fakultät für Mathematik, Universität Duisburg-Essen ; 756)
  • Schröder, Jörg; Neff, Patrizio
    Poly-, quasi- and rank-one convexity in applied mechanics
    Wien (2010) 361 S. 361 S.
    (CISM courses and lectures ; 516)
    ISBN: 978-3-7091-0173-5
  • Neff, Patrizio
    Geometrically exact Cosserat theory for bulk behaviour and thin structures : modelling and mathematical analysis
    (2004)
  • Dissertation

  • Neff, Patrizio
    Mathematische Analyse multiplikativer Viskoplastizität
    Aachen (2000) VIII, 210 Seiten VIII, 210 Seiten
    (Berichte aus der Mathematik)
    ISBN: 3-8265-7560-1
  • Poster / Posterbeiträge

  • Neff, Patrizio; Eidel, Bernhard; Martin, Robert; Münch, Ingo
    A brief history of logarithmic strain measures in nonlinear elasticity
    (2016)
  • Neff, Patrizio; Ghiba, Dumitrel; Madeo, Angela; Placidi, Luca; Rosi, Giuseppe; Abreu, Rafael; d'Agostino, Marco Valerio; Barbagallo, Gabriele
    Complete frequency band-gaps in the relaxed micromorphic model
    (2016)
  • Neff, Patrizio; Martin, Robert; Münch, Ingo
    Geometry of logarithmic strain measures
    (2016)
  • Neff, Patrizio; Madeo, Angela; Riße, Anne-Sophie; Thomas, Christine; Ferreira, A.; Kamm, Jochen; Abreu, Rafael
    Modelling rotational waves in seismology
    (2016)
  • Neff, Patrizio; Martin, Robert; Ghiba, Dumitrel
    Rank-one convexity implies polyconvexity for isotropic energies on SL(2)
    (2016)
  • Neff, Patrizio; Ghiba, Dumitrel; Martin, Robert
    Rank-one convexity vs. polyconvexity for isochoric energies on GL^+(2)
    (2016)
  • Neff, Patrizio; Ghiba, Dumitrel; Madeo, Angela; Barbagallo, Gabriele; d'Agostino, Marco Valerio; Abreu, Rafael
    Real wave propagation in the isotropic relaxed micromorphic model
    (2016)
  • Neff, Patrizio; Ghiba, Dumitrel; Madeo, Angela; Barbagallo, Gabriele; Rosi, Giuseppe; d'Agostino, Marco Valerio
    Reflection and transmission of elastic waves in non-local band-gap metamaterials
    (2016)
  • Neff, Patrizio; Martin, Robert; Eidel, Bernhard
    Strain tensors and strain measures in nonlinear elasticity
    (2016)
  • Neff, Patrizio; Birsan, Mircea
    The 6-parameter Cosserat-shell model
    (2016)
  • Neff, Patrizio; Montella, Giuseppe; Govindjee, Sanjay
    The exponentiated Hencky strain energy in modeling tire derived material
    (2016)
  • Neff, Patrizio; Thiel, Christian; Borisov, Lev; Sra, Suvrit
    The sum of squared logarithms inequality
    (2016)
  • Neff, Patrizio; Ghiba, Dumitrel; Madeo, Angela; Barbagallo, Gabriele; d'Agostino, Marco Valerio; Abreu, Rafael
    Transparent anisotropy for the relaxed micromorphic model
    (2016)
  • Neff, Patrizio; Eidel, Bernhard; Martin, Robert
    Minimal geodesics on GL(n) for left-invariant, right-O(n)-invariant Riemannian metrics
    (2015)
  • Neff, Patrizio; Ebbing, Vera; Schröder, Jörg
    Construction of anisotropic polyconvex energies on the basis of crystallographic motivated structural tensors
    (2008)
  • Vorträge

  • Neff, Patrizio; Madeo, Angela; Martin, Robert;
    Presentation: Grioli’s legacy in nonlinear elasticity : strain measures and geodesics on GL(3)
    New frontiers in continuum mechanics - dedicated to Prof. Guiseppe Grioli, 21.-22. June 2016, Rome, Italy,
    (2016)
  • Neff, Patrizio; Ghiba, Dumitrel; Martin, Robert;
    Presentation: Loss of ellipticity for non-coaxial plastic deformations in additive logarithmic strain plasticity
    15th GAMM-Seminar on Microstructures, Institut Henri Poincaré, Paris, January 22 - 23, 2016,
    (2016)
  • Neff, Patrizio; Birsan, Mircea;
    Presentation: On the dislocation density tensor in the Cosserat theory of elastic shells
    Emerging trends in applied mathematics and mechanics, ETAMM 2016, May 30 - June 3, 2016, Perpignan, France,
    (2016)
  • Neff, Patrizio; Montella, Giuseppe; Govindjee, Sanjay;
    Modeling Tire Derived Material for Moderately Large Deformations
    4th International Conference on Material Modeling, May 27.-29., 2015, Berkeley, California,
    (2015) 26 Seiten 26 Seiten
  • Neff, Patrizio; Fischle, Andreas;
    Presentation: Energy-minimizing Cosserat Microrotations and 3D-EBSD vs. Synthetic Reproduction for Nanoindentation in Copper
    Generalized Continua as Models for Materials with Multi-scale-Effects or under Multi-field-Actions, 21-26 September 2015, Magdeburg,
    (2015)
  • Neff, Patrizio; Eidel, Bernhard; Martin, Robert;
    Presentation: Geometry of logarithmic strain measures in solid mechanics
    9th European Solid Mechanics Conference, ESMC15, July 6-10, 2015, Madrid,
    (2015)
  • Neff, Patrizio; Ghiba, Dumitrel; Madeo, Angela; Münch, Ingo;
    Presentation: Old and new thoughts on the indeterminate couple stress model
    2nd International Symposium on Multiscale Material Mechanics in the 21st Century (Symposium in honor of the 65th birthday of Elias C. Aifantis), 4-9 October, 2015, Antalya/Turkey,
    (2015) 40 Seiten 40 Seiten
  • Neff, Patrizio; Böhmer, Christian Gerhard; Seymenoğlu, Belgin;
    Presentation: Soliton-like solutions based on geometrically nonlinear Cosserat micropolar elasticity
    Generalized Continua as Models for Materials with Multi-scale-Effects or under Multi-field-Actions, 21-26 September 2015, Magdeburg,
    (2015)
  • Madeo, Angela; Neff, Patrizio; Ghiba, Dumitrel; Placidi, Luca; Rosi, Giuseppe
    Presentation: The relaxed micromorphic model for the description of band-gaps in metamaterials
    (2015) 30 Seiten 30 Seiten
  • Ghiba, Dumitrel; Neff, Patrizio; Madeo, Angela; Placidi, Luca; Rosi, Giuseppe;
    Presentation: A primer on the relaxed micromorphic continuum model
    85th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), 10 – 14 March 2014, Erlangen, Germany,
    (2014) 26 Seiten 26 Seiten
  • Neff, Patrizio; Witsch, Karl-Josef; Pauly, Dirk;
    Presentation: A canonical extension of Korn's first inequality to H(Curl) motivated by gradient plasticity with plastic spin
    8th European Solid Mechanics Conference Graz, Austria July 9-13, 2012,
    (2012) 48 Seiten 48 Seiten
  • Neff, Patrizio
    Presentation: Finite Strain Gradient Plasticity
    (2011)
  • Neff, Patrizio; Jeong, Jena; Ramézani, Hamidréza;
    Presentation: Subgrid interaction and micro-randomness - novel invariances in infinitesimal gradient elasticity
    First German-French-Russian Symposium on Generalized Continua, 09.08. to 11.08. 2010, Wittenberg,
    (2010)
  • Neff, Patrizio; Jeong, Jena;
    Presentation: Linear Cosserat elasticity, conformal curvature and bounded stiffness
    Euromech 510: Mechanics of Generalized Continua: A hundred years after the Cosserats, May 13-16, 2009, Paris,
    (2009)
  • Neff, Patrizio; Jeong, Jena; Hong, Kwon-Il;
    Presentation: The Reissner-Mindlin plate is the Gamma-limit of Cosserat elasticity
    9th SSTA Conference, Jurata, Poland, 14-16 October 2009,
    (2009)
  • Neff, Patrizio; Ebbing, Vera; Schröder, Jörg;
    Polyconvex models for arbitrary anisotropic materials
    79th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), 31 March - 4 April 2008, Bremen, Germany,
    Bremen (2008) 20 Seiten 20 Seiten
  • Neff, Patrizio; Chełmiński, Krzysztof; Wieners, Christian; Müller, Wolfgang;
    Presentation: A numerical solution method for an infinitesimal elasto-plastic Cosserat model
    7th GAMM-Seminar on Microstructures, January 25-26, Bochum, Germany, 2008,
    (2008)
  • Neff, Patrizio; Münch, Ingo; Wagner, Werner;
    Presentation: Microstructural behavior of transversal isotropic material
    79th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), 31 March - 4 April 2008, Bremen, Germany,
    (2008)
  • Neff, Patrizio; Fischle, Andreas; Münch, Ingo;
    Presentation: Symmetric Cauchy stresses do not imply symmetric Biot strains in weak formulations of isotropic hyperelasticity with rotational degrees of freedom
    79th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), 31 March - 4 April 2008, Bremen, Germany,
    (2008)
  • Neff, Patrizio
    Presentation: The thin-shell Γ-limit for defective elastic crystals
    (2007) 30 Seiten 30 Seiten
  • Neff, Patrizio; Balzani, Daniel; Gross, Dietmar; Schröder, Jörg;
    Modelling of anisotropic damage in arterial walls based on polyconvex stored energy functions
    VIII International Conference on Computational Plasticity, COMPLAS VIII, 5. - 7. September 2005, Barcelona,
    (2005)
  • Neff, Patrizio
    Presentation: A novel dimensionally reduced finite viscoelastic-plastic shell theory
    (2005)
  • Neff, Patrizio
    Presentation: Constitutive parameters for a nonlinear Cosserat theory : (Oberwolfach 2005)
    (2005)
  • Balzani, Daniel; Schröder, Jörg; Gross, Dietmar; Neff, Patrizio;
    Modellierung von Hyperelastizität und Anisotroper Diskontinuierlicher Schädigung in Biologischen Geweben
    Symposium 2004 der Austrian Society of Biomedical Engineering mit dem Thema: Biomedizinische Technik,
    (2004)
  • Neff, Patrizio
    Presentation: A geometrically exact Cosserat model including sharp interfaces and fracture : mathematical analysis
    (2003)
  • Neff, Patrizio; Wieners, Christian;
    Presentation: Comparison of models for finite plasticity : a numerical study
    WCCM V, Fifth World Congress on Computational Mechanics, July 7–12, 2002, Vienna, Austria,
    (2002)
  • Neff, Patrizio; Lew, Adrian; Sulsky, Deborah; Oritz, Michael
    Presentation: Optimal BV-estimates for a discontinuous Galerkin method in linear elasticity
    (2002)
  • Neff, Patrizio; Lew, Adrian; Sulsky, Deborah; Oritz, Michael;
    Presentation: Optimal BV-estimates for a discontinuous Galerkin method in linear elasticity : presented by Adrian Lew
    WCCM V, Fifth World Congress on Computational Mechanics, July 7–12, 2002, Vienna, Austria,
    (2002)