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Applied Mathematics and Mechanics (English Edition) ›› 2000, Vol. 21 ›› Issue (3): 341-346.

• 论文 • 上一篇    下一篇

F E M ANALYSIS OF DELAMINATION BUCKLING IN COMPOSITE PLATES AND SHELLS

朱菊芬1, 郑罡2, 武金瑛1   

  1. 1. Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, P.R.China;
    2. Department of Civil Engineering, Zhejiang University, Hangzhou 310027, P.R.China
  • 收稿日期:1998-09-11 修回日期:1999-10-26 出版日期:2000-03-18 发布日期:2000-03-18
  • 通讯作者: Shen Huishen

F E M ANALYSIS OF DELAMINATION BUCKLING IN COMPOSITE PLATES AND SHELLS

Zhu Jufen1, Zheng Gang2, Wu Jinying1   

  1. 1. Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, P.R.China;
    2. Department of Civil Engineering, Zhejiang University, Hangzhou 310027, P.R.China
  • Received:1998-09-11 Revised:1999-10-26 Online:2000-03-18 Published:2000-03-18

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摘要： The purpose of the present study is to develop a new finite element method for analyzing buckling of delaminated composite plates and shells. This is achieved by establishing a new finite element called the reference-surface element. By use of the compatibility condition under Mindlin assumptions, the formulation of the reference-surface element was derived from whichever plate-element or shell-element being capable of analyzing composite plates and shells. This method assures a reasonable description of displacement field and the satisfaction of compatibility conditions for delamination problem. Numerical results for linear delamination buckling of axially compressed shells are presented to validate the method.

关键词: buckling, composites, delamination, finite element method, shells

Abstract: The purpose of the present study is to develop a new finite element method for analyzing buckling of delaminated composite plates and shells. This is achieved by establishing a new finite element called the reference-surface element. By use of the compatibility condition under Mindlin assumptions, the formulation of the reference-surface element was derived from whichever plate-element or shell-element being capable of analyzing composite plates and shells. This method assures a reasonable description of displacement field and the satisfaction of compatibility conditions for delamination problem. Numerical results for linear delamination buckling of axially compressed shells are presented to validate the method.

Key words: buckling, composites, delamination, finite element method, shells

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