Case Study:A Stress Update Algorithm for D-P Constitutive Model

摘要：

　　A special stress update algorithm,called closet point project (CPP),for D-P constitutive model is studied with some numerical examples comparing CPP results with corresponding analytical solution.CPP is found to have uniformly consistency and unconditional numerical stability.We found that this algorithm is especially effective when used in geotechnical projects,which usually sees large step loading or unloading and requires strongly both stability and accuracy.A simple numerical example is given in the end for demonstration.

关键词： stress update nonlinear finite element closet point project

作者: Xiaohan Zhang

作者单位: Civil and Environmental Engineering Carnegie Mellon University 5000 Forbes Ave,Pittsburgh,PA 15213

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: 789-794

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）