10 April 2007 Prevention of cyclic instability at the modeling of elasto-plastic deformation at large strains under proportional and non-proportional loading
Author Affiliations +
Proceedings Volume 6597, Nanodesign, Technology, and Computer Simulations; 659710 (2007) https://doi.org/10.1117/12.726764
Event: Nanodesign, Technology, and Computer Simulations, 2006, Olsztyn, Poland
Abstract
The cyclic instability phenomenon is investigated at the modeling of large elasto-plastic strains. The instability is observed at large strains for some elasto-plastic material models with a kinematic hardening in contrast to the small strain case. The cyclic instability manifests itself as a changing of shape, sizes or location of the hysteresis loop during cycling. In partial case the cyclic instability leads to the stress ratcheting. Responses of 50 various models of elasto-plastic material have been considered under proportional loading (cyclic simple shear) and non-proportional loading (combined cyclic simple shear and tension-compression). Causes of the cyclic instability are analyzed and conditions ensuring the cyclic stability of elasto-plastic models are proposed.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Artem S. Semenov, Artem S. Semenov, Boris E. Melnikov, Boris E. Melnikov, Mikhail Yu. Gorokhov, Mikhail Yu. Gorokhov, Volker Ulbricht, Volker Ulbricht, "Prevention of cyclic instability at the modeling of elasto-plastic deformation at large strains under proportional and non-proportional loading", Proc. SPIE 6597, Nanodesign, Technology, and Computer Simulations, 659710 (10 April 2007); doi: 10.1117/12.726764; https://doi.org/10.1117/12.726764
PROCEEDINGS
18 PAGES


SHARE
Back to Top