动光弹等差条纹的分析与判读

Analysis and Identification of Isochromatic Fringes in Dynamic Photoelasticity

介绍了动光弹的基本原理 ,并从理论上回答了动光弹应用中的一些问题 ,如应力光学定律的适用范围 ,惯性力可否忽略等。同时 ,在总结回顾动光弹等差条纹级次判读方法的基础上 ,提出了把应力波理论与等差条纹分析判读相结合的方法 ,不仅使条纹判读的概念更清晰 ,而且可提高条纹分析和级次判读的准确性。

The fundamental principle of dynamic photoelasticity is introduced, and some problems about its application, such as the applicability of stress-optics law, and whether or not to neglect the inertia force, are answered theoretically. After summarizing all sorts of identification ways, the method of stress wave theory combined with analyzing isochromatic fringes is offered. This method not only makes the concept of identification more distinct, but can increases the accuracy of analysis and identification.