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Automatic Generation of Triangular Shell Element Meshes on Mid-Surface in Shell Structure

셸 구조물의 중간면에 대한 삼각형 셸 요소망의 자동생성

  • 문연철 (한양대학교 일반대학원 기계설계학과) ;
  • 양현익 (한양대학교 기계정보경영공학부)
  • Published : 2007.04.01

Abstract

The surface of 3D shell structure is created by using NURBS and nodes for generating finite element mesh on the surface are created by using external node offset method. In so doing the shortest distance between nodes on the top and bottom surface is searched and then the coordinates of nodes are determined by calculating the mid point of them in the middle of top and bottom surface. Triangular elements are formed on mid surface, and the average aspect ratio of the generated triangular elements are over 0.9.

Keywords

Mid Surface;Mesh Generation;Shell Element;NURBS;Offset

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