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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
Two aggregate-function-based algorithms for analysis of 3D frictional contact by linear complementarity problem formulation
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论文类型：期刊论文
发表时间：2005-12-01
发表刊物：COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
收录刊物：Scopus、SCIE、EI
卷号：194
期号：50-52
页面范围：5139-5158
ISSN号：0045-7825
关键字：3D frictional contact problem; linear complernentarity problems; aggregate function; interior point algorithm; smoothing algorithm
摘要：Three dimensional frictional contact is formulated as linear complementarity problem (LCP) by using the parametric variational principle and quadratic programming method. Two aggregate-function-based algorithms, called respectively as self-adjusting interior point algorithm and aggregate function smoothing algorithm, are proposed for the solution of the LCP derived from the contact problems. A nonlinear finite element code is developed for numerical analysis of 3D multi-body contact problems. Four numerical examples are computed to demonstrate the applicability and computational efficiency of the methods proposed. (c) 2005 Elsevier B.V. All rights reserved.