光测弹性力学作为实验应力分析的一个分支,近半个世纪已经成熟,并在生产中得到广泛的应用,如:重型机械、动力机械、火力发电、交通运输、航空与空间技术等的结构与强度研究都采用这一实验手段。特别是对几何形状和受力条件都很复杂的问题,光弹性有其独特的优点。但经典光弹性只能确定二维实验模型 As a branch of experimental stress analysis, photometric elasticity has been developed for nearly half a century and has been widely used in production, such as structure of heavy machinery, power machinery, thermal power generation, transportation, aviation and space technology Strength studies are using this experimental method. Especially for the geometry and stress conditions are very complex issues, the flexibility has its unique advantages. However, the classical photoelasticity can only determine the two-dimensional experimental model