Elastoplastic finite element analysis on deformation behavior of ground surrounding anchor subjected to cyclic loading

Abstract

Uplift problem of ground anchor buried in shallow ground is analyzed by the elastoplastic finite element program incorporating the extended subloading surface model, which falls within the framework of unconventional plasticity and is capable of describing the cyclic loading behavior of materials. The uplift displacement of anchor gradually increases with the number of cyclic loadings. Especially, the progressive failure with the shear banding is observed at the large loading amplitude. It is clarified that these phenomena agree with the experimental data qualitatively.