复合材料夹层板壳一种等效分析方法

本文研究了复合材料夹层板壳的一种等效分析方法,首先由壳体理论导出了夹层板壳的内力和位移表达式,通过与各向异性单层板壳理论的比较,提出了二者等效的条件,从而把夹层板壳问题简化为一个等效各向异性单层板壳问题,这用有限元法很容易求解,并对一个工程实例进行了计算,证实了该方法的有效性。 

AN EQUIVALENT ANALYSIS METHOD FOR SANDWICH SHELLS OF COMPOSITE MATERIALS

An equivalent analysis method for sandwich shells made of composite materials is studied.The formulae of the intenal forces and displacements of the sandwich shell arededticed from the shelI theory.and by comparing the formulae with those of a single-deckanisotropic shell the equivalent conditions are given for both shells, Therefore, the mechanicanalysis of the sandwich shell can be converted to the analysis of a single-deck equivalentanisotropic shell that is ecsy to solve by finite element method. At last an engineeringexample is computed.The results confirm the validity of this method.