ACOUSTIC EMISSION

Acoustic emission (AE) is intended as the released energy consequent to any irreversible phenomenon taking place in a material, due to mechanical or thermal stresses or to physical causes (e.g., phase transformation).
The detection of mechanical stress wave coming from damage and in particular in a frequency range between 20 and about 1000 kHz may lead to materials characterisation in support e.g., to mechanical tests.
AE is used also in industrial environment, as a condition monitoring technique, and in support to other non destructive techniques (NDT).

Instrumentation providers
PAA
Vallen
PAC
Tektrend
Dunegan (DECI)
Bruel & Kjaer
Orion Devices Ltd. (sensors)

Researchers
Dr. Grosse-University of Stuttgart
Prof.Hamstad- Denver University
Prof. Wadley- University of Virginia
Prof.Ono- UCLA
AE publications by Bruce Spedding- New Zealand
Pages on AE from K.U. Leuven (Belgium)
National Aerospace Laboratory
Dr. Liu (acoustic emission on fibrous materials)

Other WWW acoustic emission links

A comprehensive library on AE


Other sites on non destructive testing
The online journal of Non Destructive Testing (NDT) and Ultrasonics
Italian NDT Society
Xavier Gros NDE page
British Institute for Non Destructive Testing (NDT)
AEA plc Technologies
NTIAC NDT sites
DET NORSKE VERITAS
HNDT (Eddy current)
This page was last updated on 24th December, 2003.
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