期刊
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
卷 192, 期 11-12, 页码 1261-1280出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/S0045-7825(02)00563-7
关键词
finite plasticity; multi-surface plasticity; single crystals; augmented Lagrangian formulation; numerical time integration
We provide a new time integration algorithm for rate-independent single crystal plasticity. The algorithm is based on an augmented Lagrangian formulation of the principle of maximum plastic dissipation. It is a synthesis of Lagrangian multiplier and penalty formulations avoiding their drawbacks (active set search, pseudo-inverse and approximate fulfillment of the yield condition respectively). The algorithm is physically motivated and especially provides a clear concept how to determine the set of active slip systems. The method is stable and efficient, several representative numerical examples are shown. (C) 2002 Elsevier Science B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据