:As far as I know a compression wave is the kind you get when slap a fatty human thigh and watch it ripple.
22.
With a small defect angle and a low speed you would get compression waves radiating outward from the collision plane, like an earthquake.
23.
Acoustic problems always require allowing compressibility, since sound waves are compression waves involving changes in pressure and density of the medium through which they propagate.
24.
In solids, the compression waves are analogous to those in fluids, depending on compressibility, density, and the additional factor of shear modulus.
25.
The impact produces a compression wave that travels down the pile at a constant wave speed ( similarly to what happens in high strain dynamic testing ).
26.
When the compression waves reach areas of high acoustic impedance mismatch ( such as the opposite side of the target ), tension waves reflect back and create spalling.
27.
If an explosive charge is placed on a target, the sudden release of energy causes compression waves to propagate through the target radially from the point-charge contact.
28.
Weak shocks are isentropic and that the isentrope represents the path through which the material is loaded from the initial to final states by a compression wave with converging characteristics.
29.
When compared to the compression wave, the shear wave is approximately one-half ( but may vary significantly from this estimate ) the velocity depending on the medium.
30.
Human ears are evolved to recognize certain frequencies of these compression waves as " sound " .-2-16 12 : 29, 16 May 2007 ( UTC)
