Analysis of Anisotropic Folded Structures using Triangular and Quadrilateral Elements

3절점 및 4절점 요소를 이용한 비등방성 절판 구조물의 해석

  • 유용민 (삼성엔지니어링 인프라사업팀) ;
  • 임성순 (서울시립대학교 토목공학과) ;
  • 장석윤 (서울시립대학교 토목공학과)
  • Published : 2007.02.28

Abstract

This study deals with displacement analysis of anisotropic folded structures with triangular elements and quadrilateral elements. When folded plates are analyzed, triangular elements as well as quadrilateral elements are needed for conveniences of modelling. However, using triangular elements is not a simple problem. A simple formulation is presented which allows a quadrilateral element to degenerate into a triangular element. Therefore it can easily be used for computational simplicity and avoided complexities on mixed use of triangular element and quadrilateral element. In this paper, a high-order shear deformation theory using only Lagrangian interpolation functions and drilling degrees of freedom for folded plates are utilized for more accurate analysis. Especially, various results of anisotropic laminated and folded composite structures with triangular element and quadrilateral element show the structural behavior characteristics of them.

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