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A discrete elasticity complex on three-dimensional Alfeld splits
arXiv - CS - Numerical Analysis Pub Date : 2020-09-16 , DOI: arxiv-2009.07744 Snorre H. Christiansen, Jay Gopalakrishnan, Johnny Guzm\'an, Kaibo Hu
arXiv - CS - Numerical Analysis Pub Date : 2020-09-16 , DOI: arxiv-2009.07744 Snorre H. Christiansen, Jay Gopalakrishnan, Johnny Guzm\'an, Kaibo Hu
We construct conforming finite element elasticity complexes on the Alfeld
splits of tetrahedra. The complex consists of vector fields and symmetric
tensor fields, interlinked via the linearized deformation operator, the
linearized curvature operator, and the divergence operator, respectively. The
construction is based on an algebraic machinery that derives the elasticity
complex from de~Rham complexes, and smoother finite element differential forms.
中文翻译:
三维 Alfeld 分裂上的离散弹性复形
我们在四面体的 Alfeld 分裂上构造了一致的有限元弹性复合体。该复合体由矢量场和对称张量场组成,分别通过线性变形算子、线性曲率算子和发散算子相互连接。该构造基于代数机制,该机制从 de~Rham 复数和更平滑的有限元微分形式导出弹性复数。
更新日期:2020-09-17
中文翻译:
三维 Alfeld 分裂上的离散弹性复形
我们在四面体的 Alfeld 分裂上构造了一致的有限元弹性复合体。该复合体由矢量场和对称张量场组成,分别通过线性变形算子、线性曲率算子和发散算子相互连接。该构造基于代数机制,该机制从 de~Rham 复数和更平滑的有限元微分形式导出弹性复数。