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Proceedings Paper

About the causes of cyclical instability at computations of large elasto-plastic strains
Author(s): Artem S. Semenov; Boris E. Melnikov; Mikhail Yu. Gorokhov
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Paper Abstract

Response of various elasto-plastic models is compared at large strains under cyclic loading. In contrast to the small strain case, the cyclic instability is observed at large strains for some elasto-plastic material models with a kinematic hardening. The cyclic instability manifests itself as changing of shape, size or location of the hysteresis loop during cycling. Causes of the cyclic instability are analyzed. Conditions ensuring the cyclic stability of elasto-plastic models are proposed.

Paper Details

Date Published: 29 April 2005
PDF: 7 pages
Proc. SPIE 5831, Eighth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, (29 April 2005); doi: 10.1117/12.619677
Show Author Affiliations
Artem S. Semenov, St. Petersburg State Polytechnical Univ. (Russia)
Boris E. Melnikov, St. Petersburg State Polytechnical Univ. (Russia)
Mikhail Yu. Gorokhov, St. Petersburg State Polytechnical Univ. (Russia)


Published in SPIE Proceedings Vol. 5831:
Eighth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering
Alexander I. Melker, Editor(s)

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