期刊名称：International Journal of Applied Mathematics and Computer Science
电子版ISSN：2083-8492
出版年度：2002
卷号：12
期号：1
出版社：De Gruyter Open
摘要：An adaptive strategy for nonlinear finite-element analysis, based on the combination of error estimation and h -remeshing, is presented. Its two main ingredients are a residual-type error estimator and an unstructured quadrilateral mesh generator. The error estimator is based on simple local computations over the elements and the so-called patches. In contrast to other residual estimators, no flux splitting is required. The adaptive strategy is illustrated by means of a complex nonlinear problem: the failure analysis of a single-edge notched beam. The quasi-brittle response of concrete is modelled by means of a nonlocal damage model
关键词：finite elements; error estimation; adaptivity; nonlinearity; quality of FE solutions; damage models
