A Simplified Model for Clayey Rocks Having a Plastic Porous Matrix

摘要：

　　This study is devoted to a micro-macro model of plastic deformation in a clayey rock which is composed of a ductile porous clay matrix and linear elastic mineral grains.By making use of nonlinear homogenization methods with a twostep homogenization procedure,we derive a closed form expression of the macroscopic plastic criterion which accounts for the effects of pores and of mineral inclusions simultaneously.Then,a non-associated flow rule is proposed.Comparisons between the predictions of the full micro-macro model and available experimental data show that the proposed model is able to capture the main features of the mechanical behavior of the clayey rock.

作者: Wanqing Shen Jianfu Shao Djimédo Kondo

作者单位: LML,UMR CNRS 8107,University of Lille,France IJLRA,UMR CNRS 7190,University of PMC,France

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: 283-287

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）