| 侧压下含缺陷功能梯度材料圆柱壳的屈曲 |
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| 引用本文： | 黄怀纬,韩强.侧压下含缺陷功能梯度材料圆柱壳的屈曲[J].华南理工大学学报(自然科学版),2008,36(6). |
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| 作者姓名： | 黄怀纬 韩强 |
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| 作者单位： | 华南理工大学,土木与交通学院,广东,广州,510640 |
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| 基金项目： | 国家自然科学基金资助项目
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广东省自然科学基金资助项目 |
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| 摘 要： | 本文采用圆柱壳Donnell方程和前屈曲一致理论，研究了侧压作用下含缺陷功能梯度材料圆柱壳的屈曲问题，计及前屈曲效应和材料物性温度相关性的影响，结合伽辽金原理，给出了功能梯度材料圆柱壳的临界屈曲条件。数值结果考虑了缺陷、组分参数、温度和壳体尺寸对屈曲的影响。
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| 关 键 词： | 功能梯度材料 圆柱壳 缺陷 侧压 屈曲 |
| 收稿时间： | 2007-9-19 |
| 修稿时间： | 2007-10-26 |
Buckling of Imperfect Functionally Graded Cylindrical Shells under External Pressure |
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| Huang Huai-wei,Han Qiang.Buckling of Imperfect Functionally Graded Cylindrical Shells under External Pressure[J].Journal of South China University of Technology(Natural Science Edition),2008,36(6). |
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| Authors: | Huang Huai-wei Han Qiang |
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| Abstract: | Buckling behaviors of geometrically imperfect functionally graded cylindrical shells under external pressure are investigated by using Donnell theory of circular cylindrical shells and the nonlinear prebuckling consistent theory. Both the prebuckling effects and the temperature-dependent material properties are taken into account. The buckling condition is obtained by using the Galerkin method. Numerical results show various effects of imperfection, power law exponent, temperature and dimension parameters on buckling. |
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| Keywords: | FGMs cylindrical shells imperfection external pressure buckling |
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