Reflexion transmission of a plane wave on a plane interface

Joint Authors

Rahmi, F.
Aklouche, H.
Bedrici Frai, N.
Gatignol
Potel, C.

Source

Journal of New Technology and Materials / Larbi Ben M'hidi Oum el-Bouaghi University.

Publisher

Larbi Ben M'hidi Oum el-Bouaghi University

Publication Date

2011-12-31

Country of Publication

Algeria

No. of Pages

6

Main Subjects

Mechanical Engineering

Topics

• Airplanes

English Abstract

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.

Data Type

Conference Papers

Record ID

BIM-367351

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