Richard Ostwald

Richard Ostwald    Dr.-Ing. Richard Ostwald


Curriculum Vitae

  Professional experience

since 08/2023 Tenured Full Professor of Solid Mechanics, Helmut Schmidt University Hamburg
03/2022–07/2023 Senior Researcher, Institute of Structural Analysis, Department of Civil Engineering, University of Duisburg-Essen
Prof. Carolin Birk
04/2020–09/2020 Adjunct Professor, Faculty of Production Engineering, University of Bremen
05/2018–03/2020 Interim Professor of Mechanics, Bremen Institute of Mechanical Engineering, Faculty of Production Engineering, University of Bremen
02/2017–04/2017 Visiting Researcher, Department of Mechanical Engineering, Stanford University, CA, USA
Prof. Ellen Kuhl
07/2015–02/2022 Senior Researcher, Institute of Mechanics, TU Dortmund University
Prof. Andreas Menzel
02/2013 Visiting Researcher, Department of Mechanical Engineering, University of Zaragoza, Spain
Prof. Miguel Ángel Martínez Barca
07/2009–06/2015 Research Assistant, Institute of Mechanics, TU Dortmund University
Prof. Andreas Menzel
10/2008–06/2009 Student Intern, Siemens AG, Mülheim/Ruhr
Turbines and Generators Factory, Mechanical Calculations Department
04/2005–09/2008 Student Assistant, Chair of Mechanics, TU Dortmund University
Prof. Bob Svendsen

  Academic Self-Administration

10/2020–02/2022 Elected Member of the Structural Commission, Faculty of Mechanical Engineering, TU Dortmund University
10/2020–02/2022 Elected Deputy Member of the Doctoral Examination Board, Faculty of Mechanical Engineering, TU Dortmund University
03/2019–03/2020 Member of the Curriculum Development Commission, Faculty of Production Engineering, University of Bremen
03/2016–04/2018 Elected Speaker of the Scientific Staff, Faculty of Mechanical Engineering, TU Dortmund University
01/2006–06/2008 Elected Student Representative in the Mechanical Engineering Faculty Council, TU Dortmund University

  Education

05/2015 Doctoral Degree (Dr.-Ing.), Thesis Title: "Modelling and simulation of phase-transformations in elasto-plastic polycrystals"
06/2009 Diploma Degree (Dipl.-Ing.), Thesis Title: "Fatigue assessment of welded steel structures based on harmonic analyses"
10/2004–09/2008 Studies of Mechanical Engineering, TU Dortmund University
Emphases: Fluid Flow Engines, Propulsion Technology, Simulation Technology

  Awards

07/2017 Selection for the Global Young Faculty Program, Mercator Research Center Ruhr
11/2016 Rudolf Chaudoire Award, TU Dortmund University
05/2016 GACM Best Ph.D. Award 2015, German Association for Computational Mechanics
12/2015 Best Thesis Award (Dissertationspreis), TU Dortmund University
09/2015 Jan Szmelter Award for the best research paper, Polish Association for Computational Mechanics
03/2010 Hans Uhde Award for exceptional study achievements, ThyssenKrupp/Uhde GmbH

Teaching

  Teaching experience (alphabetical)

Analysis of Structures (Lecture+Tutorial) UDE SS 2022, WS22/23, SS 2023
Computer Languages for Engineers (Lecture+Tutorial) UDE SS 2022, WS22/23, SS 2023
Engineering Mechanics 1 for Industrial Engineering (Lecture) U Bremen WS 18/19, WS 19/20
Engineering Mechanics 2 for Industrial Engineering (Lecture) U Bremen SS 2018, SS 2019
Engineering Mechanics I (Lecture) TU Dortmund SS 2021
Engineering Mechanics II (Lecture) TU Dortmund WS 21/22
Finite Element Methods I (Lecture) TU Dortmund WS 16/17, WS 17/18
Finite Element Methods II (Lecture) TU Dortmund SS 2017
Finite Inelasticity (Tutorial) TU Dortmund SS 2011
Higher Strength Theory and Structural Mechanics (Lecture) U Bremen WS 18/19, WS 19/20
Higher Strength Theory II – Plasticity Theory (Lecture) U Bremen WS 18/19, WS 19/20
Introduction to Numerical Methods (Tutorial) TU Dortmund WS 09/10, WS 10/11, WS 11/12,
WS 12/13, WS 14/15
Introduction to Numerical Methods (Lecture) TU Dortmund WS 15/16, WS 21/22
Mechanics 1a for Production Engineering (Lecture) U Bremen WS 18/19, WS 19/20
Mechanics 1b for Production Engineering (Lecture) U Bremen SS 2018, SS 2019, SS 2020
Mechanics II for Mechanical Engineering (Lecture) TU Dortmund SS 2020, SS 2021
Mechanics III for Mechanical Engineering (Tutorial) TU Dortmund SS 2007, SS 2008
Nonlinear Finite Element Methods (Lecture) TU Dortmund WS 20/21
Nonlinear Optimization in Simulation Technology (Lecture) U Bremen SS 2018
Nonlinear Optimization in Simulation Technology (Tutorial) U Bremen SS 2018
Parameter Identification (Tutorial) TU Dortmund SS 2012, SS 2013
Tensor Calculus (Tutorial) TU Dortmund SS 2015
Theory of Materials (Lecture) TU Dortmund SS 2016, SS 2017

Research

  • Projects
  • Research Interests
    • Material modelling: thermodynamically consistent modelling of phenomena such as damage, plasticity, solid state phase transformations and temperature evolution in materials of technological interest within the geometrically nonlinear framework of generalised standard materials and beyond, including the embedding in FEA software
    • Multi-scale modeling/homogenisation: development of numerical frameworks for the microstructure simulation and homogenisation of high-resolution material models in the transition from nano/micro to meso/macro scale, e.g. by utilisation of the microsphere/microplane approach for the multi-scale modeling of anisotropic solids
    • Multi-field/coupled problems: formulation and efficient, monolithic numerical solution of multi-field problems, e.g. in the context of full thermomechanical coupling, gradient-enhanced damage formulations, or formally related problems
    • Inverse problems/optimisation: adaptation of methods of non-linear programming, including methods of different order in connection with active set and penalty strategies for constrained optimisation with application e.g. in the context of DIC-based parameter identification
    • Machine learning: adaptation of machine learning methods, specifically artificial neural networks, i.e. feedforward ANNs such as multilayer perceptrons and recurrent ANNs like LSTM, to problems in engineering mechanics, especially in the area of inverse problems
  • Conference Organization
    • Co-Organiser and Conference Chair, 9th GACM Colloquium on Computational Mechanics, University of Duisburg-Essen, September 2022
    • Session Chair, Forschungskolloquium Baustatik-Baupraxis, RWTH Aachen/Kloster Steinfeld, September 2022
    • Co-Organiser of the 3rd Industrial Colloquium of the CRC/Transregio 188, Westfalenhallen Dortmund, May 2022
    • Organiser and Chair, 143rd Northern German Mechanics Colloquium, University of Bremen, February 2019
    • Chair of session Crystal Mechanics: 7th GACM Colloquium on Computational Mechanics, University of Stuttgart, October 2017
    • Chair of session Computational Materials Science: 3rd ECCOMAS Young Investigators Conference / 6th German Association for Computational Mechanics Colloquium (YIC/GACM), RWTH Aachen University, July 2015
  • Further Activities
  • Memberships
    • German Association for Computational Mechanics (GACM)
    • European Community on Computational Methods in Applied Sciences (ECCOMAS)
    • International Association for Computational Mechanics (IACM)
    • International Association of Applied Mathematics and Mechanics (GAMM)
    • Materials Chain – Key Research Initiative of the University Alliance Ruhr
    • German Association of University Professors and Lecturers (DHV)

Publications

 Theses

   2015

   2009

  • R. Ostwald
    Fatigue assessment of welded steel structures based on harmonic analyses,
    Diploma Thesis, Siemens AG, 2009

 Journals

   2022

   2021

   2020

   2019

   2018

  • R. Ostwald, T. Bartel, A. Menzel
    A finite strain continuum framework for the simulation of phase transformations based on representative transformation orientations,
    accepted for publication, 2018

   2016

   2015

   2014

   2013

  • T. Bartel, A. Bartels, U. Ehlenbröker, R. Mahnken, A. Menzel, J. Mosler, R. Ostwald, A. Schneidt, M. Wolff
    Modeling and Simulation of Solid Materials,
    In: Functionally Graded Materials in Industrial Mass Production – Fundamentals, ISBN 978-3-942267-92-2, pp. 113–128, 2013

   2012

   2011

   2010

   2009

 Proceedings

   2021

   2017

   2016

   2015

   2012

  • R. Ostwald, T. Bartel, A. Menzel
    A multi-scale model for the interaction of phase-transformations and plasticity in polycrystalline solids
    Proceedings of the 6th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS), 2012

   2011

   2010

 Talks

   2022

  • A hybrid parameter identification scheme for constitutive models based on neural networks and nonlinear optimisation
    92nd GAMM Annual Meeting, RWTH Aachen University, 2022

   2021

  • Schädigungsmodellierung und -simulation – vom Mikromodell zur Bauteil-Leistungsfähigkeit
    3. Sitzung des Industriekreises des SFB/TRR 188, Meschede (online), 2021
  • A gradient-enhanced damage modelling framework for metal forming simulations – application and calibration
    European Structural Integrity Society (ESIS) Technical Meeting on Numerical Methods (TC8), University of Belgrade, Serbia (online), 2021

   2020

  • Zur mikromechanisch motivierten Modellierung und Simulation komplexer CMC-Bauteile
    CU-Thementag Ceramic Composites / Arbeitskreis Verstärkung keramischer Werkstoffe (DKG/DGM), Augsburg (online), 2020
  • Aspects of implementation of regularised continuum damage for complex FE analyses
    European Structural Integrity Society (ESIS) Technical Meeting on Numerical Methods (TC8), University of Munich UniBwM, Neubiberg, Germany, 2020

   2019

  • Kombination von regularisierter duktiler Schädigung und Plastizität für die Simulation von Umformprozessen
    143rd Northern German Mechanics Colloquium (143. Norddeutsches Mechanik-Kolloquium), University of Bremen, Germany, 2019

   2018

  • Towards the simulation of complex metal forming processes: combination of regularised damage and contact
    Vierte Sitzung der Arbeitsgruppe Simulation des Arbeitskreises Bruchmechanik und Bauteilsicherheit des Deutschen Verbandes für Materialforschung und -prüfung e.V. (DVM), Institute of Forming Technology and Lightweight Components (IUL), TU Dortmund, Germany, 2018
  • A computational framework for the simulation of regularised damage
    Materials Science and Engineering (MSE) Congress, Darmstadt University of Technology, Germany, 2018
  • Implementation of a gradient-enhanced damage model – a heat equation-based framework
    6th European Conference on Computational Mechanics (Solids, Structures and Coupled Problems) – ECCM 6, Glasgow, Scotland, UK, 2018

   2017

  • Modelling and Simulation of phase transformations in elasto-plastic polycrystals
    Invited Plenary Talk, 7th GACM Colloquium on Computational Mechanics, University of Stuttgart, Germany, 2017
  • A regularised damage formulation for the application in commercial finite element codes
    Invited Talk, E. Kuhl Seminar, Stanford University, CA, USA, Apr 2017
  • Modelling and computation of deformation-induced anisotropy in metal alloys
    Invited Talk, E. Kuhl Seminar, Stanford University, CA, USA, Feb 2017

   2016

  • Modellierung und Simulation anisotroper Festkörper
    Invited Talk, Rudolf Chaudoire Pavillon, TU Dortmund University, Germany, 2016
  • A thermodynamically consistent finite strain micro-sphere framework for phase-transformations
    7th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016), Crete Island, Greece, 2016
  • Extending a finite strain hyperelastic micro-sphere framework towards phase transformations
    Joint Annual Meeting of GAMM and DMV, TU Braunschweig, Germany, 2016

   2015

  • Modelling and Simulation of temperature-dependent phase-transformations in elasto-plastic SMA polycrystals
    3rd Spring School on Simulation-Based Microstructure Design (SiMiDe), Hamminkeln, Germany, 2015
  • A micro-mechanically motivated finite deformation thermo-elastoplastic framework for martensitic phase-transformations
    3rd ECCOMAS Young Investigators Conference / 6th German Association for Computational Mechanics Colloquium (YIC/GACM), Aachen, Germany, 2015
  • Modellierung und Simulation thermo-mechanisch induzierter Phasentransformationen in Stahlwerkstoffen
    SFB/Transregio 30 Abschlusskolloquium, Gießhaus, University of Kassel, Germany, 2015
  • A framework for the simulation of phase-transforming elasto-plastic SMA and TRIP steel polycrystals
    3rd Polish Congress of Mechanics/21st International Conference on Computer Methods in Mechanics (PCM/CMM), Gdansk, Poland, 2015

   2014

  • A finite deformation framework for phase-transformations interacting with plasticity and its robust numerical solution
    IWCMM24 – XXIV International Workshop on Computational Micromechanics of Materials, IMDEA Materials Institute, Madrid, Spain, 2014

   2013

  • Simulation of temperature-dependent phase-transformations and plasticity in polycrystalline metals based on Gibbs energy barriers
    Invited Talk, University of Zaragoza, Spain, 2013
  • A micromechanically motivated material model for polycrystalline SMA
    International Workshop on New Trends in Solid Mechanics: Coupled Fields and Multi-scale Modelling, Castro Urdiales, Spain, 2013
  • Simulation of plasticity and martensitic phase-transformations based on representative transformation directions
    XII International Conference on Computational Plasticity (COMPLAS XII), Barcelona, Spain, 2013
  • Efficient Assessment of In-Process Phase-Transformations – Application to Machining Processes
    6. Forum Metallplastizität / 26. Workshop Composite Forschung in der Mechanik, Liborianum Paderborn, Germany, 2013

   2012

  • Experimental and computational investigation of machining processes for functionally graded materials
    1st CIRP Conference on Surface Integrity (CSI), Bremen, Germany, 2012
  • Simulation of phase-transformations based on numerical minimization of intersecting Gibbs energy potentials
    83rd GAMM Annual Meeting, Darmstadt University of Technology, Germany, 2012
  • Modelling and Simulation of phase-transformations in polycrystalline materials with application to machining processes
    19. Sitzung der TRR30 AG Eigenschaftscharakterisierung, Institut für spanende Fertigung (ISF), TU Dortmund, Germany, 2012
  • A multi-scale model for the interaction of phase-transformations and plasticity in polycrystalline solids
    6th European Congress on Computational Methods in applied Sciences and Engineering (ECCOMAS Congress 2012), University of Vienna, Austria, 2012
  • Zerspanung von gradierten Flanschwellen
    2. Sitzung des Industriebeirates des SFB/Transregio 30, Lehrstuhl für Werkstofftechnik (LWT), TU Dortmund, Germany, 2012
  • Modelling and Simulation of Phase-Transformations and Plasticity in Steel
    1st International Conference on Thermo-Mechanically Graded Materials, Kongress Palais Kassel, Germany, 2012

   2011

  • A multi-phase micro-sphere-based model for phase-transformations interacting with plastic deformations
    10th GAMM-Seminar on Microstructures, Darmstadt University of Technology, Germany, 2011
  • Interaction of phase-transformations and plasticity – a multi-phase micro-sphere approach
    82nd GAMM Annual Meeting, Grazer Congress, Graz, Austria, 2011
  • Computational modelling of phase-transformations interacting with plasticity – combination of a Gibbs-energy-barrier-based transformation criterion with a plastic inheritance approach
    21st International Workshop on Computational Mechanics of Materials, University of Limerick, Ireland, 2011
  • Mikromechanisch motivierte Modellierung und Simulation der temperaturabhängigen Interaktionen zwischen Phasentransformationen und Plastizität
    5. Forum Metallplastizität / 24. Workshop Composite Forschung in der Mechanik, Liborianum Paderborn, Germany, 2011

   2010

  • A micro-sphere approach applied to the modelling of phase-transformations
    81st GAMM Annual Meeting, KIT Karlsruhe Institute of Technology, Karlsruhe, Germany, 2010
  • Zur Modellierung und Simulation thermomechanisch induzierter Phasentransformationen in Stahlwerkstoffen
    1st TRR30 Workshop on Modeling and Simulation, TU Dortmund, Germany, 2010
  • A micro-sphere approach applied to the simulation of phase transformations interacting with plasticity
    23rd Nordic Seminar on Computational Mechanics (NSCM-23), KTH Royal Institute of Technology, Stockholm, Sweden, 2010

   2009

  • Fatigue assessment of welded steel structures based on harmonic analyses
    Siemens AG, Mülheim/Ruhr, Germany, 2009

   2008

  • Modeling and simulation of electromagnetic forming processes: a combination of ANSYS and FEAP
    Institute of Mechanics, TU Dortmund, Germany, 2008

   2007

  • Development of finite element program modules for the simulation of electromagnetic forming
    Institute of Mechanics, TU Dortmund, Germany, 2007

 Poster

   2020

  • R. Schulte, R. Ostwald, T. Kaiser, A. Menzel
    Machine learning for parameter identification and model reduction of gradient-enhanced damage models for metal forming processes,
    GAMM Juniors' Summer School on Applied Mathematics and Mechanics ("Learning Models from Data: Model Reduction, System Identification and Machine Learning"), Max Planck Institute for Dynamics of Complex Technical Systems, Magdeburg, 2020
  • A. Schowtjak, R. Schulte, T. Clausmeyer, R. Ostwald
    Model integration for process simulations,
    2nd SFB/Transregio 188 Industrial Colloquium, RWTH Aachen University, 2020

   2018

  • R. Ostwald, L. Sprave, R. Schulte, A. Menzel
    A gradient-enhanced damage implementation for the simulation of damage in metal forming processes,
    2nd Materials Chain International Conference (MCIC), Ruhr University Bochum, 2018
  • A. Schowtjak, T. Clausmeyer, R. Ostwald
    Modellintegration für die Prozesssimulation,
    SFB/Transregio 188 Industriekolloquium, Congress Center Westfalenhallen Dortmund, 2018
  • R. Ostwald, E. Kuhl, A. Menzel
    A computational framework for the simulation of regularised damage,
    Materials Science and Engineering (MSE) Congress, Darmstadt University of Technology, 2018

   2016

  • T. Clausmeyer, R. Ostwald
    Wissenschaftliches Serviceprojekt: Modellintegration für die Prozesssimulation – Zielsetzung,
    SFB/Transregio 188 Project Application, Institute of Forming Technology and Lightweight Components (IUL), TU Dortmund University, 2016
  • T. Clausmeyer, R. Ostwald
    Wissenschaftliches Serviceprojekt: Modellintegration für die Prozesssimulation – Arbeitsplan,
    SFB/Transregio 188 Project Application, Institute of Forming Technology and Lightweight Components (IUL), TU Dortmund University, 2016
  • T. Clausmeyer, R. Ostwald
    Wissenschaftliches Serviceprojekt: Modellintegration für die Prozesssimulation – Vorarbeiten,
    SFB/Transregio 188 Project Application, Institute of Forming Technology and Lightweight Components (IUL), TU Dortmund University, 2016

   2015

  • R. Ostwald, T. Bartel., A. Menzel
    Modelling and simulation of phase-transformations in elasto-plastic SMA and TRIP steel polycrystals,
    3rd Spring School on Simulation-Based Microstructure Design (SiMiDe), Akademie Klausenhof, Hamminkeln, 2015
  • R. Ostwald, T. Bartel, B. Kiefer, A. Menzel
    Modelling and Simulation,
    Materials Chain Kick-off meeting, Ruhr University Bochum, 2015

   2014

  • R. Ostwald, T. Bartel, A. Menzel
    Modellierung und Simulation thermo-mechanisch induzierter Phasentransformationen in Stahlwerkstoffen – Antragsposter,
    SFB/Transregio 30, 2nd Interim Evaluation, Paderborn University, 2014
  • R. Ostwald, T. Bartel, A. Menzel
    Modellierung und Simulation thermo-mechanisch induzierter Phasentransformationen in Stahlwerkstoffen – Berichtsposter,
    SFB/Transregio 30, 2nd Interim Evaluation, Paderborn University, 2014

   2012

  • R. Ostwald, T. Bartel, A. Menzel, M. Tiffe, D. Biermann, M. Lebsanft, B. Scholtes
    Modelling and simulation of the interactions between phase-transformations and plasticity in steel,
    11th GAMM-Seminar on Microstructures, Essen, SFB/Transregio 30 Cluster Poster – Research Projects A3/B6/D2, 2012
  • D. Biermann, A. Menzel, T. Bartel, F. Höhne, R. Holtermann, R. Ostwald, B. Sieben, M. Tiffe, A. Zabel
    Experimental and computational investigation of machining processes for functionally graded materials,
    1st CIRP Conference on Surface Integrity (CSI), Bremen, SFB/Transregio 30 Cooperation Poster – Research Projects A3/B6, 2012

   2010

  • R. Ostwald, T. Bartel, A. Menzel
    Modellierung und Simulation thermo-mechanisch induzierter Phasentransformationen in Stahlwerkstoffen (I),
    SFB/Transregio 30, 1st Interim Evaluation, Institute of Machining Technology (ISF), TU Dortmund, 2010
  • R. Ostwald, T. Bartel, A. Menzel
    Modellierung und Simulation thermo-mechanisch induzierter Phasentransformationen in Stahlwerkstoffen (II),
    SFB/Transregio 30, 1st Interim Evaluation, Institute of Machining Technology (ISF), TU Dortmund, 2010

Links

Contact

Dr.-Ing. Richard Ostwald

Weststadttürme, Raum WST-B.09.08.
Berliner Platz 6-8
45127 Essen
Tel.: +49 (0)201 183 2665
Raum: V15 S03 D08

richard.ostwald@uni-due.de