AN ELASTO-PLASTICITY-DAMAGE CONSTITUTIVE RELATIONSHIP OF UNSATURATED EXPANSIVE SOIL

摘要：

An elasto-plastic damage constitutive model for unsaturated expansive soil was proposed.Undisturbed expansive soil was considered as a compound of non-damage part and damaged part.The behavior of the non-damaged part was described using non-linear constitutive model of unsaturated soil.The property of the damaged part was described using a damage evolution equation and two yield surfaces.The proposed constitutive model is of an ability to reflect not only the effect of load and suction but also the effect of crack developing,swelling in wet state and shrinkage in dry state,shear soften and shear dilation on the behavior of undisturbed expansive soil.

关键词： expansive soil suction crack elasto-plasticity-damage model

作者: Z.H.Chen X.W.Fang J.F.Guo Z.H.Lu B.Qin

作者单位: Logistic Engineering University,Chongqing 400041,China Logistic Engineering University,Chongqing400041,China Navy University of Engineering,Wuhan 430033,China

会议类型: 国际会议

会议名称: 第二届国际非均质材料力学会议(The Second International Conference on Heterogeneous Material Mechanics)

会议地点: 安徽黄山

会议语种:英文

页码: 1402-1405

在线出版日期: 2008-06-03（万方平台首次上网日期，不代表论文的发表时间）