(ˌfəʊtəʊɪlæˈstɪsɪtɪ) n (General Physics) physics the effects of stress, such as double refraction, on the optical properties of transparent materials
photoelasticity
photoelasticity
[¦fōd·ō‚i‚las′tis·əd·ē] (optics) An experimental technique for the measurement of stresses and strains in material objects by means of the phenomenon of mechanical birefringence. photoelastic effect