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Acoustic emission of metallic pipes at mechanical tests

Domenii publicaţii > Stiinte ingineresti + Tipuri publicaţii > Articol în volumul unei conferinţe

Autori: I. Chilibon, M.Mogildea, G.Mogildea, C. Petrescu, L. Stefanescu, C. Predut

Editorial: ISBN: 978-606-8082, Proc. METSIM 2009, International Conference on Metrology & Measurement Systems, Politehnica University, Bucharest, Romania, November 5 - 6, 2009, p.33-35, 2009.

Rezumat:

This paper presents some experimental results concerning the acoustic emission (AE) of metallic materials, submissive at mechanical tests. In experimental work we utilized a piezoelectric sensor which output signal is displayed on the memory digital oscilloscope. As results, the signal analysis in time and frequency can be used to determine the attenuation coefficients, delaminating, voids, defects, etc. The receiver transducer (sensor) on the opposite side of metallic probe makes the mechanical – electrical conversion, which is extent into FPZ 10 Universal mechanical testing machine, Fritz Heckert, Germany.

Cuvinte cheie: AE, Acoustic Emission, Sensor, Elastic Coefficients, Delaminations