Analytical and experimental study on wave propagation problems in orthotropic media

摘要

Wave propagation problems in orthotropic media are studied jointly by analytical and experimental methods in this paper. Dynamic orthotroopic photoelasticity, which studies experimentally the dynamic behavior of orthotropic materials on a macroscopic scale by employing orthotropic birefringent materials, is established. A dynamic stress-optic law for orthotropic birefringent materials is postulated and practical methods of calibrating dynamic mechanical con- stants and dynamic stress-fringe values are proposed. Meanwhile, time domain boundary element method (BEM) For wave propagation in orthotropic media, is also presented Based on the theory of elastodynamics.