Abstract: The optical glass,in which the sound velocity is close to those of metal materials,has been used to study the propagation of ultrasonic wave in metal hollow cylinder,such as in steel,iron,aluminium etc.The propagation behaviors of the longitudinal,transverse of ultrasonic pulse wave in glass hollow cylinder were analyzed by the dynamic photoelasticity technique in the case where the angle of incidence on the ektexine of the piping is 90° and oblique-incidence.In the cross-section of glass piping,the propaga...