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1.云纹法(Moire Method) 由粘牢于试件(模型或构件)表面并可随其一起变形的栅片和栅板重迭(图1),栅线间因几何干涉而产生条纹(图2),这种干涉条纹称为云纹。云纹法就是根据这类云纹测定和分析试件的位移场或应变场的实验应力分析方法。
1. Moire Method Moire method consists of grids and grids that adhere to the surface of a test piece (model or member) and can be deformed together (Figure 1). The grid lines are streaked by geometric interference Figure 2), this interference fringe called moire. Moire method is based on such moire determination and analysis of specimen displacement field or strain field of the experimental stress analysis method.