Implicit stress-update algorithm for isotropic Cam-clay model based on the subloading surface concept at finite strains

Yuki Yamakawa, Koichi Hashiguchi, Kiyohiro Ikeda

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)634-658
Number of pages25
JournalInternational Journal of Plasticity
Volume26
Issue number5
DOIs
Publication statusPublished - 2010 May

Keywords

  • Cam-clay
  • Finite strain
  • Return mapping
  • Subloading surface

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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