| 正交铺设层合圆柱曲板的蠕变损伤分析 |
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| 引用本文： | 傅衣铭,郑玉芳.正交铺设层合圆柱曲板的蠕变损伤分析[J].湘潭大学自然科学学报,2005,27(1):6-10. |
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| 作者姓名： | 傅衣铭 郑玉芳 |
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| 作者单位： | 湖南大学工程力学系,长沙,410082 |
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| 基金项目： | 国家自然科学基金资助项目 (10 2 72 0 2 4)，教育部博士点专项基金资助项目 (2 0 0 2 0 5 3 2 0 18) |
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| 摘 要： | 研究了含初始几何缺陷的复合材料层合圆柱曲板在轴向压力作用下的蠕变损伤行为，基于Timoshenko-Midlin板理论和Boltzmann线性叠加原理，建立了含初始几何缺陷的复合材料正交铺设层合圆柱曲板的非线性蠕变损伤平衡方程，且应用有限差分法和迭代进行求解，算例中，具体讨论了几何非线性和横向剪切变形对复合材料层合圈柱曲线蠕变损伤行为的影响。
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| 关 键 词： | 蠕变损伤 初始缺陷 几何非线性 横向剪切 圆柱曲板 |
| 文章编号： | 1000-5900(2005)01-0006-05 |
Creepdamage Analysis of Orthogonality Laminated Cylindrical Panels |
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| FU Yi-ming,ZHENG Yu-fang.Creepdamage Analysis of Orthogonality Laminated Cylindrical Panels[J].Natural Science Journal of Xiangtan University,2005,27(1):6-10. |
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| Authors: | FU Yi-ming ZHENG Yu-fang |
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| Abstract: | In this paper, the creepdamage behaviors of composite laminated cylindrical panels with initial geometric imperfection under axial compression load are studied. Based on the Timoshenko-Midlin theory and Boltzmann superposition principle, the nonlinear creepdamage equilibrium equations of Orthogonality laminated cylindrical panels with initial imperfection are established and solved by the finite difference and iterative method. In the numerical results, the effects of geometric nonlinearity and transverse shear deformation on the creepdamage behaviors of composite laminated cylindrical panels are discussed. |
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| Keywords: | creep damage initial imperfection geometric nonlinearity transverse shear cylindrical panel |
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