应力波和动光弹等差条纹的分析与判读

STRESS WAVE 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,如惯性力可否忽略等.并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,这样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.

In this paper, the fundamental principle of dynamic photoelasticity is introduced. Some issues concerned such as the applicability of stress-optics law and whether the inertia force can be neglected or not etc., are answered theoretically. Based on summarizing all sorts of identification ways, a method to combine stress wave theory with analyzing isochromatic fringes is proposed. As a result, not only the concept of identification is made more distinct, but also the accuracy of analysis and identification can be increased.