Identification and Integration of Directional Distortional Hardening Model in Case of Monotonic Proportional Loading

0452408 - ÚT 2016 RIV ES eng A - Abstrakt
Parma, Slavomír - Hrubý, Zbyněk - Marek, René - Plešek, Jiří
Identification and Integration of Directional Distortional Hardening Model in Case of Monotonic Proportional Loading.
COMPLAS 2015. 2015 - (Oñate, E.; Owen, D.; Peric, D.; Chiumenti, M.). ISBN 978-84-944244-6-5.
[COMPLAS XIII International Conference on Computational Plasticity. Fundamentals and Applications /13./. 01.09.2015-03.09.2015, Barcelona]
Grant CEP: GA ČR(CZ) GA15-20666S
Institucionální podpora: RVO:61388998
Klíčová slova: plasticity * directional distortional hardening * identification
Kód oboru RIV: JG - Hutnictví, kovové materiály
http://congress.cimne.com/complas2015/frontal/doc/EbookComplas2015.pdf

Plastic straining of metals can induce distortion of yield surface. This phenomenon is referred to as the directional distortional hardening and was modelled by several authors. A comprehensive model of directional distortional hardening is presented and some properties of the model are emphasized. It is shown that model can be analytically integrated and this integration is used for identification of model. There are developed two identification algorithms that are suitable for both the monotonic and cyclic loading. Existence of solution for these algorithms is guaranteed. Finally, some identification examples are presented.
Trvalý link: http://hdl.handle.net/11104/0254855