Extension of Mohr-Coulomb Model into State Dependent Softening of Sand and Its Application in Large Deformation Analysis

摘要：

　　State transformation is common in soil shearing problem and causes much difficulty in soil description in numerical simulation.For characterizing the state transformation of sand,dilatancy angle and friction angle are linked with soil state parameter,i.e.the difference between current void ratio and void ratio at critical state.Further,state dependent dilatancy angle and friction angle are introduced into classical MC model.The new model shows robust stability in large deformation analysis and offers prediction matching the softening/hardening behavior of sand in laboratory tests,as well as the penetration resistance of spudcan into soil.

关键词： Large deformation analysis critical state dilatancy angle soften harden

作者: Xu Li Yuxia Hu David White

作者单位: University of Western Australian,Perth,Australia

会议类型: 国际会议

会议名称: The Second International Symposium on Constitutive Modeling of Geomaterials: Advances and New Applications (第二届国际岩土本构模型研讨会(IS-Model 2012))

会议地点: 北京

会议语种:英文

页码: 583-591

在线出版日期: 2012-10-15（万方平台首次上网日期，不代表论文的发表时间）