2ビーム入射によるスライス型光弾性トモグラフィの理論的研究

概要

論文の詳細を見る
In photoelastic tomography two-beam methods for reconstructing the secondary principal-stress differences and directions are theoretically investigated utilizing polarized light scattered from the intersection of two beams propagating through a model. The data are collected in the direction normal to the crossed beams by shifting the two beams stepwise from the surface of the model to its interior. A ligth path in the model is regarded as a series of linear retarders, and two methods for calculating the retardation and orientation of each retarder are used. One is the retarder approximation and the other is the finite difference method. Algorithms for reconstruction based on these methods are given. The algorithms are numerically examined by using a known stress distribution of a cylindrical bar exhibiting the rotation effect. They are found to be effective.
一般社団法人日本機械学会の論文
1996-07-25