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湿热环境中复合材料层合圆柱薄壳的屈曲和后屈曲

沈惠申

沈惠申. 湿热环境中复合材料层合圆柱薄壳的屈曲和后屈曲[J]. 应用数学和力学, 2001, 22(3): 228-238.
引用本文: 沈惠申. 湿热环境中复合材料层合圆柱薄壳的屈曲和后屈曲[J]. 应用数学和力学, 2001, 22(3): 228-238.
SHEN Hui-shen. Buckling and Postbuckling of Laminated Thin Cylindrical Shells under Hygrothermal Environments[J]. Applied Mathematics and Mechanics, 2001, 22(3): 228-238.
Citation: SHEN Hui-shen. Buckling and Postbuckling of Laminated Thin Cylindrical Shells under Hygrothermal Environments[J]. Applied Mathematics and Mechanics, 2001, 22(3): 228-238.

湿热环境中复合材料层合圆柱薄壳的屈曲和后屈曲

基金项目: 国家自然科学基金资助项目(59975058)
详细信息
    作者简介:

    沈惠申(1947- ),浙江人,男,教授,博士,博导.

  • 中图分类号: O343

Buckling and Postbuckling of Laminated Thin Cylindrical Shells under Hygrothermal Environments

  • 摘要: 在宏-细观力学模型框架下,讨论湿热环境对复合材料层合圆柱薄壳在轴向压缩作用下屈曲和后屈曲行为的影响.基于细观力学模型复合材料性能与湿度和温度变化有关.壳体控制方程基于经典层合壳理论,并包括湿热效应.壳体屈曲的边界层理论被推广用于湿热环境的情况,相应的奇异摄动法用于确定层合圆柱薄壳的屈曲荷载和后屈曲平衡路径.分析中同时计及壳体非线性前屈曲变形和初始几何缺陷的影响.数值算例给出完善和非完善正交铺设层合圆柱薄壳在不同湿热环境中的后屈曲行为.讨论了温度和湿度,纤维体积比率,壳体几何参数,铺层数,铺层方式和初始几何缺陷等各种参数变化的影响.
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出版历程
  • 收稿日期:  1999-09-11
  • 修回日期:  2000-08-29
  • 刊出日期:  2001-03-15

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