中国民航大学学报

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复合材料加筋板结构屈曲分析

郭巧荣,张西峰,朱晓红   

  1. (中国民航大学航空工程学院天津300300)
  • 收稿日期:2018-09-20 修回日期:2018-11-08 出版日期:2019-02-25 发布日期:2019-04-16
  • 作者简介:郭巧荣(1982—),女,河北邢台人,讲师,博士研究生,研究方向为复合材料力学,飞机结构损伤与修理.
  • 基金资助:
    中央高校基本科研业务费专项(3122015D010)

Buckling analysis on stiffened composite structure

GUO Qiaorong, ZHANG Xifeng, ZHU Xiaohong   

  1. (College of Aeronautical Engineering, CAUC, Tianjin 300300, China)
  • Received:2018-09-20 Revised:2018-11-08 Online:2019-02-25 Published:2019-04-16

摘要: 应用ABAQUS 软件建立复合材料加筋板结构有限元模型,在轴向压缩载荷下,进行线性特征值屈曲分析。针对筋条参数、壁板参数及边界条件等影响因素,计算模型的临界屈曲载荷,对加筋板结构进行屈曲承载能力分析。结果表明:加筋条高度和条数、壁板铺层顺序和厚度及结构边界条件对屈曲载荷影响显著。

关键词: 航空复合材料, 加筋板, 轴向压缩, 屈曲承载力

Abstract: A finite element model of stiffened composite structure is established with ABAQUS. The buckling behavior is analyzed by the Linear Eigenvalue Method under axial compression. The critical buckling loads are computed using the modes. The buckling loading capabilities are affected by various factors, which include stiffener parameters, panel parameters and boundary conditions. Simulation result shows that the buckling loads are obviously affected by the height and numbers of stiffeners, the thickness and sequence of panel layers, and the boundary conditions.

Key words: aviation composite, stiffened laminate, axial compression, buckling load-carrying capacity

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