Elasto-plastic modelling of the behaviour of granular soil-structure interfaces

被引：0

作者：

de Gennaro, Vincenzo ^{[1
]}

Frank, Roger ^{[1
]}

机构：

[1] CERMES, Ecole Nationale des Ponts et Chaussées, 77 455 Marne-la-Vallée, Cedex 2, France

来源：

Lecture Notes in Applied and Computational Mechanics | 2004年 / 14卷

关键词：

Elastoplasticity - Soil structure interactions - Volumetric analysis - Critical current density (superconductivity);

D O I：

暂无

中图分类号：

学科分类号：

摘要：

It is well known that interfaces usually play a major role in the definition of the mechanical behaviour of engineering structures having interactions with the soil. In this paper the general framework of an elasto-plastic constitutive model developed on purpose for describing the interface behaviour is presented. The model is based on a Mohr-Coulomb failure criterion, including deviatoric hardening/ softening, phase transformation state (compaction and dilatancy) and critical state. The choice of the constitutive parameters and their identification is first discussed. The predictions of the model are then presented and compared with available experimental data from various interface tests between sand and metal plates. The results of the numerical analyses emphasise the key role played by the volumetric behaviour of the interface (compaction and dilatancy), linked in some cases with the change in the normal stress acting on the structure surface and, consequently, controlling the shear resistance at the interface. © Springer-Verlag Berlin Heidelberg 2004.

引用

页码：133 / 158