Deformation and fracture of composites by the methods of speckle-holographic interferometry

Summary The holographic method described makes it possible effectively to investigate complex problems of the deformation mechanics of composites, and obtain new precise information on their fracture process. The high sensitivity (to 0.1m) and the almost unlimitedly small strain measuring bases make it convenient to use the method described to investigate the reliability of the hypotheses and assumptions of theoretical calculation methods, for the direct experimental observation of fine deformation effects, and for investigating the laws of deformation and fracture of new composites and the critical elements of structures made of such materials.Translated from Mekhanika Kompozitnykh Materialov, No. 1, pp. 136–140, January–February, 1982.