An acoustic emission energy analysis and its use to study damage in laminated composites

Mohan, R and Prathap, Gangan (1980) An acoustic emission energy analysis and its use to study damage in laminated composites. Journal of Nondestructive Evaluation, 1 . pp. 225-233. ISSN 0195-9298

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Abstract

It is proposed to use the output of a true rms voltmeter to measure the acoustic emission energy output of a transducer. To demonstrate the effectiveness of this method, it was used during the tensile testing of laminated fiber-reinforced plastic composites. The method is found to provide qualitative results indicating the onset and sequence of ply and interlaminar failure. In addition, by using signal characteristics such as energy per event, spectral content, and amplitude distributions, it should be possible to identify failure modes and level of damage

Item Type: Journal Article
Additional Information: Copyright for this article belongs to Springer Verlag
Uncontrolled Keywords: Acoustic emission; Energy methods; Glass fiber reinforced plastics; Laminates; Nondestructive tests; Epoxy matrix composites; Failure modes; Prediction analysis techniques; Sound transducers; Structural failure; Tensile strength; Tensile tests
Subjects: ENGINEERING > Quality Assurance and Reliability
Division/Department: Centre for Civil Aircraft Design and Development, CSIR Centre for Mathematical Modelling and Computer Simulation
Depositing User: Ms. Alphones Mary
Date Deposited: 20 Dec 2005
Last Modified: 24 May 2010 09:39
URI: http://nal-ir.nal.res.in/id/eprint/885

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