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Study of benefits and limitations linked to implementation of directional distortional hardening models
- 1.0446036 - ÚT 2016 US eng A - Abstract
Marek, René - Plešek, Jiří - Hrubý, Zbyněk - Parma, Slavomír - Feigenbaum, H. P. - Dafalias, Y.F.
Study of benefits and limitations linked to implementation of directional distortional hardening models.
4th International Conference on Material Modeling. Berkeley, 2015.
[International Conference on Material Modeling /4./. 27.05.2015-29.05.2015, Berkeley, California]
R&D Projects: GA MŠMT LH14018; GA ČR(CZ) GA15-20666S
Institutional support: RVO:61388998
Keywords : plasticity * directional distortional hardening * finite-element procedures
Subject RIV: JG - Metallurgy
http://icmm4.usacm.org/sites/default/files/ICMM4-BookofAbstracts-FINAL.pdf
The presented work gives a deep insight into numerical implementation of several models of plasticity with directional distortional hardening. This property reflects a well documented phenomenon of oriented shape change of the elastic region during kinematic hardening. Special focus is put on the testing of stability of the algorithms even for course subincrementation during internal evolution. By carefully examining high resolution error maps, searching for image discontinuities and singularities, important general conclusions are derived.
Permanent Link: http://hdl.handle.net/11104/0248674
Number of the records: 1