Theoretical and Numerical Investigation of the Finite Cell Method

Theoretical and Numerical Investigation of the Finite Cell Method
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有限元方法的理论和数值研究

DOI:
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发表时间:
2015
影响因子:
2.5
通讯作者:
E. Rank
E. Rank
中科院分区:
数学2区
文献类型:
--
作者:
M. Dauge;A. Düster;E. Rank

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本文详细分析了基于高阶有限元的虚拟域有限单元法的收敛性。用有限单元法证明了一维、二维和三维Laplace和lam<s:1>问题的指数型收敛性。包括一个著名的线弹性基准问题在内的几个一维和二维数值算例证实了有限单元法的数学分析结果。
We present a detailed analysis of the convergence properties of the finite cell method which is a fictitious domain approach based on high order finite elements. It is proved that exponential type of convergence can be obtained by the finite cell method for Laplace and Lamé problems in one, two as well as three dimensions. Several numerical examples in one and two dimensions including a well-known benchmark problem from linear elasticity confirm the results of the mathematical analysis of the finite cell method.
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