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Validation of Material Models in Grain Scale Simulation based on EBSD Experimental Data
Author(s) -
Van Tung Phan,
Jöchen Katja,
Böhlke Thomas
Publication year - 2011
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201110261
Subject(s) - electron backscatter diffraction , homogenization (climate) , materials science , discretization , crystal plasticity , ultimate tensile strength , elongation , plasticity , deformation (meteorology) , slip (aerodynamics) , metallurgy , composite material , thermodynamics , mathematics , microstructure , physics , mathematical analysis , biology , biodiversity , ecology
A crystal plasticity model and a homogenization method are used to analyze the local and global mechanical behavior of a ferritic stainless steel. In the first step the material constants are determined based on tensile tests and used to simulate the local deformation behavior on the grain scale in the second step. For that 2D EBSD data are discretized by finite elements. The computed local grain reorientations of three different BCC slip systems are compared to experimental data at the state of 20% elongation. (© 2011 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)