平面支承对轴压下复合材料层合板非线性稳定性的影响

基金项目: 国家自然科学基金资助

THE INFLUENCE OF INPLANE BOUNDARY CONSTRAINTS ON NONLINEAR STABILITY OF COMPOSITE LAMINATES UNDER COMPRESSION LOADING

摘要

摘要: 本文根扼稳定性分析的前屈曲完全理论,应用有限无法,对轴压下复合材料层合板的非线性稳定性进行了分析计算,考察了屈曲前平面支承条件对层合板稳定性的非线性效应的影响,得出一些有意义的结论.
- 平面支承 /
- 层合板 /
- 稳定性
Abstract: In this paper,the non linear stability analysis of laminated composite plate under compression loading is demonstrated by use of Hahn-Tsai nonlinear constitutive relationship. The initial stresses of the plate is the prebuckling state ire obtained by completed plate theory. Numerical results have proved that inplane boundary constraints of the edges could have significant effect on the load capability of the plate,which is quite different from the conclusion given by membrane theory in prebuckling state.
- inplane constraints /
- laminated plate /
- stability