正交铺设层合圆柱曲板的蠕变损伤分析  

Creepdamage Analysis of Orthogonality Laminated Cylindrical Panels

作　　者：傅衣铭[1] 郑玉芳[1] 

机构地区：[1]湖南大学工程力学系,长沙410082

出　　处：《湘潭大学自然科学学报》2005年第1期6-10,共5页Natural Science Journal of Xiangtan University

基　　金：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)

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法进行求解.算例中。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.

关 键 词：蠕变损伤 初始缺陷 几何非线性 横向剪切 圆柱曲板 

分 类 号：O345[理学—固体力学]