The velocity of a longitudinal acoustic wave in a solid material depends on the nature of the material and can be calculated by the next formula:
Formula:
Where:
V is the velocity of the longitudinal wave in meter per second (m/s)
E is the Young´s Modulus (*)
ρ is the desnsity
(*) Young´s Modulus is numerically equal to the stress required to double the length of a body. Actually, in most bodies, rupture occurs at considerable smaller stresses.
