A benchmark algorithm for elastoplasticity with multiple yield surfaces

J. P. Bardet, W. Choucair

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


A benchmark algorithm is proposed to calculate the stress-strain responses of elastoplastic models with multiple yield surfaces during the multi-dimensional cyclic loadings encountered in soil dynamics and earthquake engineering. The algorithm is based on the linearized integration technique1. It is applied to the Prevost2 model but pertains also to other elastoplastic models with multiple yield surfaces. The proposed method is applied to calculate the strain response during a constant pressure test and a circular stress path loading in the deviatoric plane. It is a benchmark algorithm to calibrate the stress-point routines of nonlinear finite element codes. It is especially useful in soil dynamics to compare the predictions of elastoplastic models with the experimental results of multidimensional shear tests.

Original languageEnglish (US)
Pages (from-to)341-347
Number of pages7
JournalSoil Dynamics and Earthquake Engineering
Issue number7
StatePublished - Oct 1991
Externally publishedYes

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology
  • Soil Science


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