摘要
本文讨论了双向增强层合板承受剪切载荷使剪切屈曲线栽荷最大的铺层优化分析,文中首先证明了使剪切屈曲裁荷最大的最优结构必定是对称铺设结构,还通过结构的灵敏度分析证明了无论层合板层数是多少其最优铺设角不会超过三个,并说明上述优化问题还可作为单设计变量优化问题处理。
The present paper provides a theoretical proof for that although the buekling load equation for the bidirection reinforced laminated plates under shear is an implicit equation,the laminated plates which gives the highest shear buckling load,just as the laminated plates under axial compression, must be symmetrical laminates.Based on the analysis of sensitivity,it is proved that the number of different ply angles in an optimum laminated plate under shear is no more than 3,ineluding 0°and 90°.Furthermore,based on the analysis of the numerical examples,it is illustrated that optimization of laminated plates under shear can be.simplified to-a single variable opti- mization.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
1989年第4期48-55,108,共9页
Acta Materiae Compositae Sinica
基金
中国科学基金会资助课题
