Title: Basic Acoustic Emission signal treatment in the area of mechanical cyclic loading

Authors: Pavel Mazal, Lubos Pazdera, Lukas Kolar

Addresses: Faculty of Mechanical Engineering, Brno University of Technology, Technicka 2, CZ 61669 Brno, Czech Republic. ' Faculty of Civil Engineering, Brno University of Technology, Zizkova 17, CZ 60200 Brno, Czech Republic. ' Faculty of Mechanical Engineering, Brno University of Technology, Technicka 2, CZ 61669 Brno, Czech Republic

Abstract: One of promising possibilities of watching of damage course of material exposed to cyclic mechanical loading is using acoustic emission technique (AE). Various types of AE signals processing that are often used in practice are dealt with. In this paper, the basic comments of results of experimental measuring are shown that were aimed to possibilities of identification of various stages of fatigue process, realised on electro-resonance loading equipment with the help of AE technique. Results gained to date show wide possibilities of application of the AE method for the identification of fatigue processes.

Keywords: acoustic emission; AE; fatigue properties; signal treatment; burst signal characteristics; mechanical loading; magisterial crack; nondestructive testing; NDT.

DOI: 10.1504/IJMMP.2006.011649

International Journal of Microstructure and Materials Properties, 2006 Vol.1 No.3/4, pp.341 - 352

Published online: 07 Dec 2006 *

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