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.
ASJC Scopus subject areas
- Civil and Structural Engineering
- Geotechnical Engineering and Engineering Geology
- Soil Science