The accurate elastodynamic equations for inhomogeneous media

(Science China Press) A recent study found out that the gradient of pre-stresses plays an important role in the accurate elastodynamic equations for inhomogeneous media. Thus, it shades a light on the seismology, the NDT of composites, the elastic metamaterials, etc., which are related with the propagation of low frequency elastic waves in inhomogeneous media. This study has been published on SCIENCE CHINA Physics, Mechanics & Astronomy, 2014, No. 12.