적응적 쉘유한요소를 이용한 박스형 구조물의 좌굴해석 = Buckling Analysis of Box-typed Structures using Adaptive Shell Finite Elements

다국어 초록 (Multilingual Abstract)

The finite element linear buckling analysis of folded plate structures using adaptive h-refinement methods is presented in this paper. The variable-node flat shell element used in this study possesses the drilling D.O.F. which, in addition to improvement of the element behavior, permits an easy connection to other elements with six degrees of freedom per node. The Box-typed structures can be analyzed using these developed flat shell elements. By introducing the variable-node elements some difficulties associated with connecting the different layer patterns, which are common in the adaptive h-refinement on quadrilateral mesh, can be overcome. To obtain better stress field for the error estimation, the super-convergent patch recovery is used. The convergent buckling modes and the critical loads associated with these modes can be obtained.

참고문헌 (Reference)

1 "고성능 유한요소를 이용한 평판구조물의 정적 및 동적해석" 18 (18): 311-320, 2005

2 "Versatile Variable-node Flat Shell Element" 122 : 432-441, 1996

3 "Theory of Elastic Stability" McGraw-Hill 1961

4 "Stability of Structures by Finite Element Methods" 1994

5 "On a Thin Shell Element for Nonlinear Analysis based on the Isoparametric Concept" 1992

6 "Finite Element Procedures in Engineering Analysis" Prentice-Hall 1996

7 "Error Estimates and Adaptive Refinement for Plate Bending Problems" 1989

8 "Concepts and Applications of Finite Element Analysis" 1989

9 "A Quadrilateral Finite Element including Vertex Rotations for Plane Elasticity Problems" 1988

10 "A Modified Representation of Transverse Shear in C0 Quadrilateral Plate Elements" 1987183～207