复合材料结构破坏过程的计算机模拟

COMPUTATIONAL SIMULATION OF PROGRESSIVE FAILURE IN COMPOSITE STRUCTURES

用计算机来模拟和预测复合材料结构的破坏过程是目前国际上一个比较热门的研究方向，也具有极其重要的实用价值。本文对逐渐破坏模型的基本思想以及国际上在这一领域的研究现状作了比较详细的介绍。在此基础上，文章详细介绍了作者在研究复合材料脱层问题时，开发出的两类用于预测复合材料脱层破坏过程的界面单元：非线性弹簧界面元和六节点界面单元，文章提供了大量理论预测与试验结果相吻合的例子，证明用计算机来模拟复合材料结构的破坏过程是完全可行的。

Computational methods for simulating and predicting progressive fracture in composite structures are the current important research subject in composite community and these researches are of significant practical use. The fundamental principles of the progressive damage models and the state of the art review of these methods are presented. Furthermore,two types of interface elements,spring interface elements and six noded interface elements, which are developed by the present author and can be used to predict delamination failure of composites,are introduced in detail. Many examples are provided which show good agreement between theoretical predictions and experiments. These examples indicate that it is very possible to simulate the progressive fracture of composite structures with a computer.