Elastic Ratio -- from Eric Weisstein's World of Physics

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Mechanics "> Elasticity "> Elastic Properties v

Elastic Ratio

The ratio

(1)

(2)

(3)

also known as the seismic parameter, where is the adiabatic bulk modulus, is the density, is the P-wave speed, is the S-wave speed, P is the pressure, and denotes the derivative at constant entropy.

Adiabatic Bulk Modulus, P-Wave, S-Wave