A Hypoplastic Model for Soil-Structure Interface Behaviour

摘要

The contact behaviour of granular material and structural elements is often modeled in numerical calculations by using a friction model with a Coulomb-failure criteria. This simplification misses some important characteristics of shearing of granular material. A new hypoplastic model is proposed for more realistic simulations of contact problems. An application problem of the skin friction of a retaining wall embedded in sand demonstrates the advantages of the new model compared to a standard Coulomb-friction model.