Rate Dependent Elastoviscoplastic Model

摘要：

　　A rate dependent model for creep behavior using an elastoviscoplasticmodel is presented.It requires yield surface that is dependent on the rate of strain.It is called dynamic yield surface and is obtained by modifying or correcting the static yield surface.A new method based on creep tests is proposed to define the static yield surface.The model is validated with respect to test data for two materials:a soil (glacial till) and an alloy (solder).The correlations between model predictions and test data are very good.Thus,the proposed model can be used to characterize the behavior of materials that depend on strain rate and creep.

关键词： constitutive models multicomponent DSC rate dependence elastoviscoplastic static yield surface dynamic yield surface validations

作者: Chandrakant S.Desai Shantanu M.Sane

作者单位: Dept.of Civil Eng.and Eng.Mechanics.,The Univ.of Arizona,Tucson,AZ,USA Energy and Propulsion Technologies,GE Global Research Center,Niskayuna,NY,USA

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: 97-105

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）