刊名:Computer Methods in Applied Mechanics and Engineering
出版年:2016
出版时间:1 March 2016
年:2016
卷:300
期:Complete
页码:245-264
全文大小:432 K
文摘
This paper presents a residual-based a posteriori error estimator for the Arnold–Winther mixed finite element that utilises a post-processing for the skew-symmetric part of the strain. Numerical experiments verify the proven reliability and efficiency for suitable approximation of the skew-symmetric deformation gradient. Numerical evidence supports that the class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0045782515003205&_mathId=si2.gif&_user=111111111&_pii=S0045782515003205&_rdoc=1&_issn=00457825&md5=76f7321a15fa879194a55089ae7e8a75" title="Click to view the MathML source">L2class="mathContainer hidden">class="mathCode">-stress error estimator is robust in the Poisson ratio and allows stable error control even in the incompressible limit.