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Conforming Rectangular Mixed Finite Elements for Elasticity

机译:弹性矩形共混有限元

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摘要

We present a new family of rectangular mixed finite elements for the stress displacement system of the plane elasticity problem. Based on the theory of mixed finite element methods, we prove that they are stable and obtain error estimates for both the stress field and the displacement field. Using the finite element spaces in this family, an exact se quence is established as a discrete version of the elasticity complex in two dimensions. And the relationship between this discrete version and the original one is shown in a commuting diagram.
机译:我们为平面弹性问题的应力位移系统提出了一个新的矩形混合有限元族。基于混合有限元方法的理论,我们证明了它们是稳定的,并获得了应力场和位移场的误差估计。使用该族中的有限元空间,可以将精确序列确定为二维二维弹性复合体的离散形式。通勤图中显示了这种离散版本与原始版本之间的关系。

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