Convexity of Models with Directional Distortional Hardening and its Computational Implication

0329868 - ÚT 2010 RIV ES eng C - Conference Paper (international conference)
Plešek, Jiří - Dafalias, Z. - Feigenbaum, H.P.
Convexity of Models with Directional Distortional Hardening and its Computational Implication.
[Konvexnost modelu plasticity se směrovým zpevněním a její numerické důsledky.]
Computational Plasticity X. Fundamentals and Applications. Barcelona: Technical University of Catalonia, 2009 - (Onate, E.), s. 1-4. ISBN 978-84-96736-69-6.
[International Conference on Computational Plasticity/10./. Barcelona (ES), 02.09.2009-04.09.2009]
R&D Projects: GA ČR GA101/09/1630
Institutional research plan: CEZ:AV0Z20760514
Keywords : yield surface * convexity * directional hardening
Subject RIV: JJ - Other Materials

Explicit constraints on elastic-plastic material parameters were derived to guarantee computional model´s convexity in the presence of directional distortional hardening.

Odvozeny byly explicitní podmínky konvexnosti pro modely plasticity se směrovým zpevněním.
Permanent Link: http://hdl.handle.net/11104/0175783