Numerical simulation of the strain inhomogeneities during plain strain compression on the basis of the digital material representation

Abstract

This work is part of the research focused on the creation of the complex modelling platform called Digital Material Representation (DMR). The main objective of the DMR system is development of the digital representation of microstructure with its features, such as grains, grain orientations, inclusions, cracks, different phases etc. represented explicitly. The idea of the DMR system containing different methods of generation of digital microstructures, assigning properties and mesh generation, is described. Numerical simulation of the plain strain compression test on the basis of the DMR are the main objective of this work. Particular attention is paid to on inhomogenous strain evolution and its relations with underlying microstructure. Advantages and limitations of this methodology in comparisons with the conventional approaches are discussed, as well.