BUCKLING AND FAILURE CHARACTERISTICS OF COMPRESSION-LOADED STIFFENED COMPOSITE PANELS WITH A HOLE
BUCKLING AND FAILURE CHARACTERISTICS OF COMPRESSION-LOADED STIFFENED COMPOSITE PANELS WITH A HOLE
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DOI：
10.1016/0263-8223(94)90002-7
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发表时间：
1994-01-01
影响因子：
6.3
通讯作者：
STARNES, JH
中科院分区：
文献类型：
--
作者：
NAGENDRA, S;GURDAL, Z;STARNES, JH
进行了实验和分析研究，以研究带孔加劲压缩负载面板的屈曲和失效特征，并评估用于此类面板设计的分析模型的有效性。具有四个等距叶片加劲肋的石墨-环氧树脂面板采用层压板堆叠顺序制造，该顺序针对无孔加劲面板进行了优化设计。对具有不同孔尺寸的面板和无孔面板进行了测试。在具有严重局部弯曲梯度的区域中，所有面板在加强筋处或附近开始失效。使用具有边界条件的四分之一面板模型来模拟实验的有限元分析用于预测预屈曲和屈曲行为。分析结果与实验结果有很好的相关性。
An experimental and analytical study was carried out to investigate the buckling and failure characteristics of stiffened compression-loaded panels with holes, and to assess the validity of analytical models used for the design of such panels. Graphite-epoxy panels with four equally spaced blade stiffeners were fabricated with a laminate stacking sequence optimally designed for stiffened panels without holes. Panels with different hole sizes and panels without holes were tested. Failure of all panels initiated at or near the stiffeners, in regions with severe local bending gradients. Finite element analysis using a quarter-panel model with boundary conditions to simulate the experiment was used to predict the prebuckling and buckling behavior. Analytical results correlate well with experimental results.