复合材料层合板的层间应力有限元分析

Interfacial stress analysis of composite laminated plates by finite element method

本文研究复合材料层合板的层间应力,以经典板理论为基础,考虑横向剪切变形和层间相互挤压,构造每一铺层与层间胶层的位移场,采用有限元方法,应用广义势能原理确定位移场中的待定系数,从而确定层合板的位移场和应力场。采用ANSYS计算,计算结果显示,这种解法克服了经典层合板理论的缺点,提高了层间应力的计算精度。

This text studies the interfacial stress of composite laminated plates,which based on the classical plate theory.It considers the effect of transverse shear deformation.The displacement field of each composite ply and glue layer are described.The principle of generalized potential energy is used to determine the unknown coefficients of the above series.The platform of ANSYS is used to solve the question.From the computational results,it can be shown that the means overcome the defect of the classical plate theory and improve the precision of interfacial stress.