Development of the plate elements based on the Hellinger-Reissner functional = Hellinger-Reissner 범함수를 이용한 판 유한요소의 개발

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The finite element method has been an effective tool to analyze plate structures. Low-order plate elements still have accuracy problems compared to high-order plate elements, particularly triangular plate elements. The objective of this study is to design a 3-node plate element based on the Hellinger-Reissner functional to obtain better performance. The Hellinger-Reissner functional can make the displacements and the strains independent. The poor strain fields from the displacement-based formulation can be changed to the richer strain fields from interpolating the strains independently. Then we can use static condensation on the strain to get the stiffness matrix. Numerical tests and convergence curves of the present 3-node element has been carried out, which illustrate a favorable convergence rate of the present 3-node plate element.
Advisors
Lee, Phill-Seungresearcher이필승researcherPark, K.C.researcher박광춘researcher
Description
한국과학기술원 : 해양시스템공학전공,
Publisher
한국과학기술원
Issue Date
2011
Identifier
468012/325007  / 020093390
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 해양시스템공학전공, 2011.2, [ iv, 38 p. ]

Keywords

Hellinger-Reissner functional; Finite elements; 판요소; Plate elements; 유한요소

URI
http://hdl.handle.net/10203/47181
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=468012&flag=dissertation
Appears in Collection
OSE-Theses_Master(석사논문)
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