摘要
本文利用最小势能原理和平均筋条刚度法,建立了在任意载荷作用下以一环向密加筋复合材料圆锥壳的大变形方程。所建立的Donnell型方程可作为研究圆锥壳许多具体力学问题的理论基础。对一些特殊情况,给出了简化方程。 1.基本假设和关系式 在本文理论推导过程中作如下基本假设:
In this paper, a new theory is developed for large deflection of closely stiffened truncated laminated composite conical shells under arbitrary loads by using the variational calculus and smeared-stiffener theory. The most general bending-stretching coupling, the effect of eccentricity of stiffeners and initial deflection are considered. The new equations of the mixed type of the shell are obtained in terms of the transverse deflection and stress function and can be used to solve the problems of stress analysis, deflection, stability and vibration of the shell. The simplified equations are also given for some particular cases.
出处
《航空学报》
EI
CAS
CSCD
北大核心
1990年第5期A271-A276,共6页
Acta Aeronautica et Astronautica Sinica
关键词
复合材料
加筋壳
大变形方程
composite shell, stiffened shell, conical shell, geom-etrical nonlinearity, large deflection equations.
