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.
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页码：827 / 836
页数：10
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