Parallelization on several levels is the central challenge in the focus of this research project. The level with the highest granularity is the parallel solution of the many RVE problems on the microscale.

Associated people

J. Schröder, D. Balzani (TU Dreden), D. Brands, A. Gandhi in cooperation with A. Klawonn, M. Lanser (Universität zu Köln), O. Rheinbach(TU Freiberg), G. Wellein (Universität Nürnberg-Erlangen) 

Abstract

The project EXASTEEL in the SPP 1648 deals with the computational simulation of advanced high strength steels, incorporating phase transformation phenomena at the microscale using the FE² direct multiscale approach. Thereby in each macroscopic integration point an additional (microscopic) boundary value problem is solved and suitable volume averages of the microscopic responses replace the macroscopic constitutive set of equations compared to classical FEM computations. In a serial set-up this procedure results in high numerical costs especially in the three dimensional case. New, highly efficient, parallel solver algorithms will enable the FE² approach to perform simulations of three dimensional multiscale material science problems. Due to the main objectives of SPPEXA, here the development for the exascale computing on future supercomputers is one of the main aspects.

Homepage Project EXASTEEL
Homepage SPPEXA Priority Programme 1648