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首页> 外文期刊>Computer Methods in Applied Mechanics and Engineering >Consistency and recovery in electroelasticity. Part Ⅱ: Equilibrium and mixed finite elements
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Consistency and recovery in electroelasticity. Part Ⅱ: Equilibrium and mixed finite elements

机译：电弹性的一致性和恢复性。第二部分：平衡和混合有限元

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摘要

The first part of this paper establishes the concept of consistency for standard finite elements in electroelasticity. This has permitted to trace the origin of certain spurious oscillations affecting the finite element response in terms of stress and electric flux density. In this second part, the consistency analysis is generalized to models which directly involve stress and electric flux density as independent variables. The analysis shows that also these models can suffer from spurious outcomes. However, selecting the approximation functions on consistency basis allows to eliminate, or at least reduce, the undesired oscillations.
机译：本文的第一部分建立了电弹性标准有限元一致性的概念。这样就可以追踪某些在应力和通量密度方面影响有限元响应的寄生振荡的起源。在第二部分中，一致性分析被概括为直接将应力和电通量密度作为自变量的模型。分析表明，这些模型也可能遭受假结果。但是，基于一致性选择近似函数可以消除或至少减少不希望的振荡。

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