基于高阶剪切变形理论的复合材料层合板精化单元法

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

  • 摘要: 基于高阶剪切变形层合板理论(该理论满足层间位移、应力连续条件)建立了一种精化方法,由此建立了三角形精化板单元.该单元满足单元间C1类弱连续条件,其收敛性得到保证,且具有列式简单、计算效率和精度高的优点.

     

    Abstract: 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.

     

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