动态光弹性法及其应用

Dynamic photoelastic method and its applications

动态光弹性方法相当于一种模拟计算机，为理论研究和工程应用提供瞬态应力现象的实验依据，对求解动载荷作用下结构的应力、应变，动应力集中，裂纹扩展规律具有独特的优点。介绍动态光弹性法的基本原理、记录方法、光弹性材料动态性能的测定以及应用状况。

The dynaamic photoelastic method is similar to an analogue computer, whichprovides experimental basis of transient stress phenomenon for thoretical study andengineering application. This method has unique advantages in finding the solution ofstrutural stresses and strains under dynamic load, dynamic stress concentration and fracture spreading law. This paper introduces the basic principles of the dynamicphotoelastic method, recording technology, measurement of the dynamic properties ofphotoelastic materials and its application to engineering problems.