摘要
本文采用高阶剪切变形理论对正交各向异性中厚矩形板进行振动与稳定分析,数值计算采用样条有限点法,得出了六种不同边界条件矩形板的自振频率和屈曲载荷,并与相应的经典板理论的结果进行比较.结果说明横向剪切变形对复合材料层合板的影响与板的各向异性程度、板的宽厚比(b/h)、层合板的层数和板的支承条件有关,它随着层合板各向异性程度的增加而增加,随着层合板宽厚比的增加而逐渐消失.
The vibration and stability of middle thickness orthotropic laminates are analysed by using higherorder shear deformation theory. The spline finite point method is used in numerical calculations. Natural frequencies and buckling loads of the laminates with six types of boundary conditions are obtained and compared with the corresponding ones from the classical plate theory. From these results, it is seen that the effect of transverse shear deformation on composite lanimates is significant and depends on the anisotropy、 the ratios of width-thickness b/h and the supported conditions. It increases as the material anisotropy increases and disappears with increasing the ratios of width-thickness b/h.
出处
《应用力学学报》
CAS
CSCD
北大核心
1992年第2期143-148,167,共6页
Chinese Journal of Applied Mechanics
基金
冶金部有偿资助课题
关键词
剪切变形
各向异性
板
振动
稳定性
shear deformation
anisotropy
width-thickness ratio
natural frequeny
buckling load
