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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：男
毕业院校：德国汉诺威大学
学位：博士
所在单位：力学与航空航天学院
学科：工程力学. 计算力学. 生物与纳米力学
电子邮箱：zhanghw@dlut.edu.cn
Parametric variational principle based elastic-plastic analysis of materials with polygonal and Voronoi cell finite element methods
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论文类型：期刊论文
发表时间：2007-01-01
发表刊物：FINITE ELEMENTS IN ANALYSIS AND DESIGN
收录刊物：SCIE、EI
卷号：43
期号：3
页面范围：206-217
ISSN号：0168-874X
关键字：polygonal finite element method; Voronoi cell finite element method; parametric variational principle; quadratic programming method
摘要：Parametric variational principle based polygonal finite element method (PFEM) and Voronoi cell finite element method (VCFEM) are developed for the numerical simulations of the elastic-plastic mechanical behavior of heterogeneous materials under small deformation. The shape functions for the polygonal element are given and the parametric potential energy principle of the elastic-plastic system is verified. Based on the parametric complementary energy principle, the formulations of VCFEM and the corresponding parametric quadratic programming model are deduced for the elastic-plastic analysis of materials. Numerical examples are computed to demonstrate the validity and efficiency of the methods developed. (c) 2006 Elsevier B.V. All rights reserved.