Applied Mathematics and Mechanics (English Edition) ›› 1990, Vol. 11 ›› Issue (7): 651-657.

• 论文 • 上一篇    下一篇

A STUDY OF THE POSTBUCKLING PATH OF CYLINDRICALLY CURVED PANELS OF LAMINATED COMPOSITE MATERIALS DURING LOADING AND UNLOADING

董万林, 黄小清   

  1. Dept.of Eng.Mech., South China Univ.of Tech., Guangzhou
  • 收稿日期:1989-06-04 出版日期:1990-07-18 发布日期:1990-07-18
  • 基金资助:
    Project supported by the National Natural Science Foundation of China

A STUDY OF THE POSTBUCKLING PATH OF CYLINDRICALLY CURVED PANELS OF LAMINATED COMPOSITE MATERIALS DURING LOADING AND UNLOADING

Dong Wan-lin, Huang Xiao-qing   

  1. Dept.of Eng.Mech., South China Univ.of Tech., Guangzhou
  • Received:1989-06-04 Online:1990-07-18 Published:1990-07-18
  • Supported by:
    Project supported by the National Natural Science Foundation of China

摘要: In this paper, Dynamic Relaxation Method is applied to study the postbuckling path of cylindrically curved panels of laminated composite materials during loading and unloading.The phenomenon that loading paths do not coincide with unloading paths has been found.Numerical results are given for cylindrically curved cross-ply panels subjected to uniform uniaxial compression under two types of boundary conditions.The influence of the number of layers, the panels curvature and the initial imperfection on the postbuckling paths is discussed.

Abstract: In this paper, Dynamic Relaxation Method is applied to study the postbuckling path of cylindrically curved panels of laminated composite materials during loading and unloading.The phenomenon that loading paths do not coincide with unloading paths has been found.Numerical results are given for cylindrically curved cross-ply panels subjected to uniform uniaxial compression under two types of boundary conditions.The influence of the number of layers, the panels curvature and the initial imperfection on the postbuckling paths is discussed.

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