Journal
INTERNATIONAL JOURNAL OF PLASTICITY
Volume 26, Issue 5, Pages 634-658Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijplas.2009.09.007
Keywords
Subloading surface; Cam-clay; Return mapping; Finite strain
Funding
- Japan Society for the Promotion of Science (JSPS) [18560480]
- Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Young Scientists (B) [20760311]
- Grants-in-Aid for Scientific Research [18560480, 20760311] Funding Source: KAKEN
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A stress-update algorithm for the subloading surface Cam-clay model is developed. The model is re-formulated to be compatible with the multiplicative hyperelasto-plasticity for finite strains. The algorithm aims at synthesizing the phenomenological capability of the subloading surface model and the numerical advantage of the return mapping. A closed-form representation of the algorithmic tangent is also derived. The proposed algorithm is implemented into a finite-element code and is shown to be capable of producing accurate results even for large incremental steps. Numerical examples of boundary-value problems demonstrate the robustness of the algorithm. (C) 2009 Elsevier Ltd. All rights reserved.
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