Patch based recovery in finite element elastoplastic analysis

被引：8

作者：

Daghia, Federica ^{[1
]}

de Miranda, Stefano ^{[2
]}

Ubertini, Francesco ^{[2
]}

机构：

[1] UniverSud Paris, LMT Cachan, ENS Cachan, CNRS,UPMC,PRES, F-94235 Cachan, France

[2] Univ Bologna, DICAM, I-40136 Bologna, Italy

来源：

COMPUTATIONAL MECHANICS | 2013年 / 52卷 / 04期

关键词：

Recovery; Plasticity; Compatibility; Patch-based methods; ERROR ESTIMATION; SUPERCONVERGENT; EQUILIBRIUM; SPR;

D O I：

10.1007/s00466-013-0847-6

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

A new patch based stress recovery procedure for elastoplastic analysis is presented in this paper. The formulation derives from the extension to the elastic-perfectly plastic case of the Recovery by Compatibility in Patches procedure recently proposed by the authors. The present procedure is designed to simultaneously reconstruct both a new stress field and a new plastic strain field, so to ensure that elastoplastic consistency is satisfied. The numerical results on two common benchmark problems show the effectiveness of the new procedure.

引用

页码：827 / 836

页数：10

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