User:Dennisawhite

Triboacoustic emission is a subcategory of generic acoustic emission (AE) and falls within the definition of AE found in ASTM E 1316. Whereas AE is generally assumed to be from the propagation of flaws at high load and the resulting creation of new crack surface, triboacoustic emission is the result of a frictional, slip-stick,mechanism which occurs when existing crack surfaces rub together at low load.Crack components may be individually, or collectively, responsible for the generation of acoustic emission also.