A residual error estimator for the XFEM approximation of the elasticity problem
A residual error estimator for the XFEM approximation of the elasticity problem
复制标题
弹性问题的 XFEM 近似的残差估计器
DOI:
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发表时间:
2009
期刊:
影响因子:
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通讯作者:
Y. Renard
中科院分区:
文献类型:
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作者:
P. Hild;V. Lleras;Y. Renard
In this work we propose, analyse and implement a residual a posteriori error estimator for the elasticity system in two space dimensions approximated by the eXtended Finite Element Method (XFEM). The XFEM allows to perform finite element computations on multi-cracked domains using meshes of the non-cracked domain by adding supplementary basis functions of Heaviside type and singular functions in order to take into account the crack geometry and the singularity at the crack tip respectively.