为了进行有限寿命设计,除了借助计算机外,自然还需要进行实验应力分析,以测定实际运转时各零部件的应力状态。本文将详细介绍测定这些应力状态的方法——光弹贴片法。实践证明,光弹性贴片法的分析结果不仅对有限寿命设计适用,而且对考核用有限元法进行应力分析的计算程序也很有帮助。下面介绍其中的几个例子。 In order to carry out the design of finite life, in addition to using computers, it is natural to conduct experimental stress analysis to determine the stress state of each component during actual operation. This article will detail the method of measuring these stress states - photoelastic patch method. Practice has proved that the results of the analysis of the photoelastic method is not only suitable for the design of finite life, but also helpful for the calculation procedure of the stress analysis by finite element method. Here are a few examples.