REFINED FINITE ELEMENT METHOD OF COMPOSITE LAMINATES BASED ON A HIGHER-ORDER SHEAR DEFORMATION THEORY

Based on a higher-order shear deformation theory of composite laminates,which fully satisfies the geometric and stress continuity conditions at interfaces,a refined finite element method and refined triangular element are proposed.The interelement C¹ weak-continuity conditions can be satisfied,so that the convergence is insured.Numerical results show that the present element has higher computational efficiency and higher accuracy.