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Static and Dynamic Analysis of Plate Structures using a High Performance Finite Element  

Han In-Seon (한국과학기술원 건설환경공학과)
Kim Sun-Hoon (영동대학교 토목환경공학과)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.18, no.3, 2005 , pp. 311-320 More about this Journal
Abstract
In this paper an enhanced quadratic finite element for static and dynamic analysis of plate structures is presented. The performance of a proposed plate element is improved by the coupled use of non conforming displacement modes, the selective integration scheme, and the assumed shear strain fields. An efficient direct modification method is also applied to this element to solve the problem such as failure of the patch test due to the adoption of non conforming modes. The proposed quadratic finite element does not show any spurious mechanism and does not produce shear locking phenomena even with distorted meshes. It is shown that the results obtained by this element converged to analytical solutions very rapidly tough numerical tests for standard benchmark problems. It is also noted that this element is applicable to transient dynamic analysis of Mindlin plates.
Keywords
plate finite element; shear locking phenomenon; non-conforming displacement mode; substitute shear strain; direct modification method; dynamic analysis;
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