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Indexed by:期刊论文

Date of Publication:2012-09-01

Journal:FINITE ELEMENTS IN ANALYSIS AND DESIGN

Included Journals:SCIE、EI、Scopus

Volume:57

Page Number:92-102

ISSN No.:0168-874X

Key Words:Cosserat model; Contact problem; Finite element analysis; Parametric virtual work principle; Quadratic programming

Abstract:The formulation and numerical framework for 3D frictional contact analysis of Cosserat materials have been constructed. Based on the parametric variational principle and the corresponding quadratic programming method for numerical simulation of frictional contact problems, a finite element model is developed for 3D frictional contact analysis of Cosserat materials. The contact conditions are expressed in the form of anon-associated plastic flow problem, and the penalty factors introduced into the algorithm for contact problem are eliminated by using a definite numerical technique. The calculations of numerical examples show the feasibility and importance of the proposed algorithm. The developed contact model provides a fundamental understanding of contact problems of structures with materials which have micro-polar characteristics. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.