Počet záznamů: 1
How to simplyfy return-mapping algorithms in computational plasticity: Part 1 - Main idea
- 1.0452275 - ÚGN 2016 RIV ES eng C - Konferenční příspěvek (zahraniční konf.)
Čermák, Martin - Sysala, Stanislav
How to simplyfy return-mapping algorithms in computational plasticity: Part 1 - Main idea.
Computational Plasticity III - Fundamentals and Applications - COMPLAS III. Barcelona: International Center for Numerical Methods in Engineering (CIMNE), 2015 - (Oňate, E.), s. 1-12. ISBN 978-84-944244-6-5.
[International Conference on Computational Plasticity – Fundamentals and Applications /13./. Barcelona (ES), 01.09.2015-03.09.2015]
Grant CEP: GA ČR GA13-18652S
Institucionální podpora: RVO:68145535
Klíčová slova: computational plasticity * nonsmooth yield functions * return-mapping schemes * consistent tangent operators
Kód oboru RIV: IN - Informatika
http://congress.cimne.com/complas2015/frontal/doc/EbookComplas2015.pdf
An improved implicit return-mapping scheme for nonsmooth yield surfaces is suggested in this paper. It is based on a subdierential formulation of the ow rule that does not require special treatment at singular points (apices, edges, etc.). Although the ow direction is multivalued in such a case, it is shown that the suggested scheme leads to solving a unique system of nonlinear equations similarly as for smooth yield surfaces. Improved return-mapping schemes of several elastoplastic models containing nonassociative plastic ow rules and nonlinear isotropic hardening laws are introduced together with the corresponding consistent tangent operators.
Trvalý link: http://hdl.handle.net/11104/0253302
Název souboru Staženo Velikost Komentář Verze Přístup UGN_0452275.pdf 1 232.6 KB Vydavatelský postprint povolen
Počet záznamů: 1