THERMAL POSTBUCKLING BEHAVIORS OF LAMINATED COMPOSITE PLATES WITH TEMPERATURE-DEPENDENT PROPERTIES

被引:57
作者
CHEN, LW
CHEN, LY
机构
[1] Department of Mechanical Engineering, National Cheng Kung University, Tainan
关键词
D O I
10.1016/0263-8223(91)90031-S
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
The thermal postbuckling behavior of composite laminated plates subjected to a uniform thermal loading is investigated by the finite element method. Thermal and elastic properties of the medium are assumed to be temperature-dependent. Based on the principle of minimum potential energy, the nonlinear stiffness matrix and geometry matrix are derived. The assumed displacement state over the middle surface of the plate element is expressed as product of one-dimensional, first-order Hermitian polynomials. An iterative method is employed to determine the thermal postbuckling load. Numerical results reveal that the effect of temperature-dependent mechanical properties on the thermal postbuckling behavior is significant.
引用
收藏
页码:267 / 283
页数:17
相关论文
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