| 开孔结构的稳定性分析及其应用 |
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| 引用本文： | 程昌钧,吕小安.开孔结构的稳定性分析及其应用[J].力学进展,1997,27(1):85-96. |
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| 作者姓名： | 程昌钧 吕小安 |
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| 作者单位： | 上海大学力学系,上海市应用数学和力学研究所 |
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| 基金项目： | 国家自然科学基金,上海市教委博士点基金 |
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| 摘 要： | 缺陷对结构稳定性的影响是直接与结构失效分析有关的重要课题．本文把板壳结构中存在的孔洞作为一种几何缺陷，简述了开孔柱壳非线性分析的理论、变分原理、有限元方法及其对稳定性分析的应用．考察了孔洞的存在对轴压柱壳临界载荷的影响
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| 关 键 词： | 开孔柱壳 结构稳定性 变分原理 分岔分析 缺陷敏感性 临界载荷 |
STABILITY ANALYSIS AND ITS APPLICATION FOR PERFORATED STRUCTURES |
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| Cheng Changjun,Institute of Mechanics and.STABILITY ANALYSIS AND ITS APPLICATION FOR PERFORATED STRUCTURES[J].Advances in Mechanics,1997,27(1):85-96. |
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| Authors: | Cheng Changjun Institute of Mechanics and |
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| Institution: | Cheng Changjun Institute of Mechanics and Department of Mechanics,Shanghai University,Shanghai 200072 Lui Xiaoan Department of Civil Engineering,University of Waterloo |
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| Abstract: | The effects of imperfections on stability of structures are directly related to failure analyses of structures. In the paper, the theory, variational principles, finite element method for perforated cylindrical shells and its applications for the stability analysis are briefly reviewed with holes in structures regarded as one kind of initial geometric imperfections. The effects of holes on critical loads of cylindrical shells under axial compression are discussed. |
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| Keywords: | perforated cylindrical shell stability of structures variational principle bifurcation analysis imperfection sensitivity critical load |
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