对于复合材料中裂纹高速扩展问题的研究,本文提供了一个可行的实验方法。利用高速摄影机和光弹贴片法,可以得到不同时刻的应力光图。根据这些应力光图,可以得到复合材料板在断裂时的应力分布和裂纹扩展速度等资料。由这些资料就可以对复合材料的断裂理论进行更深的研究了。 For the study of crack propagation in composite materials, this article provides a feasible experimental method. The use of high-speed video camera and photoelastic patch method, you can get different time stress light map. According to these stress light maps, the stress distribution and crack growth rate of the composite plate during fracture can be obtained. From these data, the fracture theory of composites can be further studied.