Present Situation of Automatic Photoelastic Experiments

Abstract

Photoelasticity is a full-field method which enables experimental stress analysis of two- and three-dimensional components to be performed by analyzing the photoelastic fringes, i. e. isochromatics and isoclinics. However, the collection of photoelastic parameters can be a long and tedious process. The advance of automated photoelastic system has allowed the experimentalists to speed up the rate of analysis and to perform more complex investigations. In this paper, a survey of recent methods of automated photoelasticity developed in the last 20 years is provided.