Discrete Element Investigation of the Asymptotic Behaviour of Granular Materials

摘要：

　　The concept of the asymptotic behaviour of particulate materials is described,including its enhancement considering asymptotic states in extension.A 3D discrete element model with permanent elastic spherical particles is set up.The numerical sample is stretched from different initial states,and the influence of the strain rate direction on the final state is studied.Asymptotic behaviour is clearly observed.The asymptotic stress ratio (including critical state friction angle) is observed not to be constant,but it is a variable depending on the stress level.Existence of extension asymptotic states is observed,and the notion of normal extension line is introduced.

作者: D.Ma(s)ín

作者单位: Faculty of Science,Charles University in Prague,Czech Republic

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: 423-430

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）