WEBREVIEW

Reflexion/ Transmission of a plane wave on a plane interface

On a plane interface between two elastic half-space, P and SV waves propagating in the (x, z) pare related by Snell’s law and
the law of continuity of displacement components x u and z u and constraints zz σ and zx σ on both sides of the interface. An
incident wave P or wave SV generates two P or SV reflected waves and two transmitted waves P or SV. The four continuity
equations are written in the form of a matrix multiplied by a vector transmission-reflection coefficient, defined for potential
movement of the particles. For an planar boundary between fluids with different characteristic impedances, there is continuity of
z u and zz σ on both sides of the interface and the shear zx σ in the medium must vanish at the interface (fluid media involving
only perfect no viscosity, so that was normal stresses, not shear stress 0 xz σ = ). As soon as the angle of incidence exceeds a
critical value of incidence, the wave for which the value of incidence is greater than 30°
becomes evanescent. The reflectiontransmission
coefficients become complex.


Document joint


 
| info visites 9143711

Suivre la vie du site fr  Suivre la vie du site Science et Technologie  Suivre la vie du site Journal of New technology and Materials  Suivre la vie du site Volume 01  Suivre la vie du site Numero 00   ?

Creative Commons License