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Photoelastic analysis is an extremely effective method for obtaining full-field stress/strain measurements. The method is based on the property of birefringence, which is exhibited by certain transparent materials, by examining transparent polymer models of structures etc. to isolate stress concentrations and other weak zones.
Photoelasticity has been used in machine, power, aviation, aerospace, shipbuilding, construction,
waterconservancy, metallurgy, nuclear-powered,
bridge, life sciences, underground engineering, petroleum machine etc. and its also used as teaching equipment.
a. used computer screen as light source
b. the load part can turn round at any angle
c. have a sense organ and a appearance which could show the