Determination of 3-D stress by optical tensor field tomography

被引：2
|
作者：
Schupp, D
机构：
来源：
OPTICAL INSPECTION AND MICROMEASUREMENTS II | 1997年 / 3098卷
关键词：
interferometry; polarimetry; refractive index; mechanical stress; anisotropic materials; integrated photoelasticity; tensor field tomography; iterative reconstruction;
D O I：
10.1117/12.281189
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A novel method for measuring arbitrary three-dimensional states of mechanical stress in photoelastic models is presented. The theory of tensor field tomography is described and an iterative reconstruction algorithm is given, which processes the projection data received by illuminating the model for several orientations. The method generally works well for limited amount of stress, which is demonstrated by simulations. An experimental setup is presented for measuring the required projection data. It is a combination of an extended Mach-Zehnder interferometer and a polariscope.
引用
收藏
页码：431 / 441
页数：11
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