NONLINEAR IMPACT ANALYSIS OF LAMINATED CYLINDRICAL AND DOUBLY-CURVED SHELLS

被引:28
|
作者
CHANDRASHEKHARA, K
SCHROEDER, T
机构
[1] Department of Mechanical and Aerospace Engineering and Engineering Mechanics, University of Missouri-Rolla Rolla
关键词
D O I
10.1177/002199839502901604
中图分类号
TB33 [复合材料];
学科分类号
摘要
The nonlinear impact response of laminated composite cylindrical and doubly curved shells is analyzed using a modified Hertzian contact law. A finite element model is developed based on Sander's shell theory and includes shear deformation effects and nonlinearity due to large deflection. A nine noded isoparametric quadrilateral element is used to model the curved shell. The nonlinear time dependent equations are solved using an iterative scheme and Newmark's method. Numerical results for the contact force and center deflection histories are presented for various impactor conditions, shell geometry and boundary conditions.
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页码:2160 / 2179
页数:20
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