ELATO-PLASTIC STRAIN HARDENING-SOFTENING SOIL MODEL WITH SHEAR BANDING

Abstract eng:
The solutions of boundary value problems involving strain-softening material property are full of serious difficulties from both modeling of strain-localization and a viewpoint of nu merical procedure. Mesh size-dependent hardening modulus is considered to alleviate the mesh size -dependency of the solution. The elasto-plastic soil model is applied to direct shear test and embankment dam. The soil model is based on experimental findings about inherent and induced anisotropies involved in sand. The results of finite element analysis are compared with those from the physical experiments.

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