含分层损伤复合材料层合板的精化有限元法

提出了一种以勒让德多项式逼近位移场的含分层损伤的复合材料层合板的高阶理论精化有限元模型，该模型考虑了横向剪切变形沿层板厚度的分布规律，满足层板上下表面及分层处上下表面横向剪应力为零的条件；对分层损伤区域内的层板刚度进行了修正。

A fine finite element method for composite laminated plate with delamination

A high order theory is presented using Legendre polynomials to approximate displacement field and corresponding finite element model is developed for the composite laminated plate with delamination damage. The model has considered transverse shear deformations distribution across the plate thickness, which satisfies the zero stresses conditions at the upper and bottom surface of the plate and in the delamination zone. The stiffness in the zone of delamination damage has been corrected. This finite element model can be applied to analyses of the effect of delamination damage on the bending flexure of composite laminate.