引 言 光弹性实验是进行科学实验的一种具体方法。它利用偏振光通过由透明的和各向同性的光敏塑料制成的受力模型,以获得应力光图。然后,用应力状态理论,求出模型中任一截面的应力分布情况。最后,按相似理沦将模型的应力换算为与之对应的结构的应力。由此可见,这是一门与晶体光 Introduction Photoelastic experiments are a concrete method of conducting scientific experiments. It uses polarized light to pass through a force model made of a transparent and isotropic photo-sensitive plastic to obtain a stress light map. Then, using the stress state theory, find out the stress distribution in any section of the model. Finally, according to the similar principle, the stress of the model is converted into the stress of the corresponding structure. This shows that this is a door with crystal light