基于简化Zinoviev力学模型的复合材料层压板失效分析

根据Zinoviev对复合材料单层板的力学行为分析，对单层板在横向载荷和剪切载荷作用下的力学模型进行了简化，并提出了形式简单的刚度折减公式.结合二维Hashin准则，采用增量法，编写了复合材料层压板强度预测程序.应用该程序对典型算例进行了强度预测，结果显示，简化后的模型能够在保证原模型计算精度的基础上，使计算过程更加简化，方便应用.

Progressive Failure Analysis of Composite Laminates Based on Simplified Zinoviev Model

A simple stiffness degradation method was proposed based on the model of individual unidirectional ply within the laminated composite. The model simplified Zinoviev’s theory of individual unidirectional ply under transverse loading and shear loading. 2D Hashin criterion was employed to predict the failure of individual ply in laminates. With the help of increment method, a program was complied to analysis the failure behavior of composite laminates. With this program, the failure of composite laminates of various lay up and materials were predicted. The results demonstrated that, on the premise of maintaining the high accuracy of Zinoviev’s theory, the proposed model simplified the calculation process and could be easily applied to further study.