Treating volumetric inequality constraint in a continuum media with a coupled X-FEM/level-set strategy

N. Bonfils; N. Chevaugeon; N. Moees

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Treating volumetric inequality constraint in a continuum media with a coupled X-FEM/level-set strategy

机译：Treating volumetric inequality constraint in a continuum media with a coupled X-FEM/level-set strategy

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摘要

Some mechanical problems involve inequality kinematic constraints. This study deals with an original approach to handle those difficult problems. The inequality constraint implies variational inequality since the area where the constraint is active is a priori unknown. The method, introduced here, is to find the exact constrained area iteratively starting from an initial trial one. Thanks to numerical tools such as level-set and X-FEM we turn the constrained minimization problem into a shape equilibrium problem.

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来源
《Computer Methods in Applied Mechanics and Engineering》 |2012年第15期|16-28|共13页
作者
N. Bonfils; N. Chevaugeon; N. Moees;
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作者单位

CeM, Ecole Centrale de Nantes, 1 rue de la Noe, 44321 Nantes, France;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类自动化基础理论;
关键词
inequality constraint; variational inequality; configurational equilibrium; X-FEM; level-set;

Treating volumetric inequality constraint in a continuum media with a coupled X-FEM/level-set strategy

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