Detection and Identification of Different Metal Materials with Same Damage of Stretching Based on Acoustic Emission in Audible Domain

Analysis of metallic materials damage signal is effective for studying strength failure.Domestic and foreignscholars do much workbased on acoustic emission due to its real-time detection. Most researches are in ultrasonic region, few in audible domain. In this paper, taking low-carbon steel and cast...

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Veröffentlicht in:Applied Mechanics and Materials 2013-10, Vol.419, p.321-327
Hauptverfasser: Lu, Yun Tao, Xu, Qing, Deng, Zong Bai, Zhang, Can, Yuan, Ya
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container_title Applied Mechanics and Materials
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creator Lu, Yun Tao
Xu, Qing
Deng, Zong Bai
Zhang, Can
Yuan, Ya
description Analysis of metallic materials damage signal is effective for studying strength failure.Domestic and foreignscholars do much workbased on acoustic emission due to its real-time detection. Most researches are in ultrasonic region, few in audible domain. In this paper, taking low-carbon steel and cast iron as an example, we collected acoustic emission signals during tensile tests. Thenestablishassociated diagrams of processed signals, with multivariable parameter analysis used for eigenvalue processing. After normalizing data,wefigured out ranges of synthetic parameters. The experiment and calculation results show that eigenvalue of every low-carbon steel in one certain event is greater than cast iron’s. As a result,synthetic parameters canmake significant effect in detecting and identifying different metal materials
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subjects Acoustic emission testing
Acoustics
Cast iron
Damage
Domains
Eigenvalues
Emission analysis
Experiments
Identification
Laboratories
Low carbon steel
Low carbon steels
Mechanics
Noise
Normalizing
Parameter identification
Signal processing
Software
Tensile tests
Ultrasonic imaging
Ultrasonic testing
title Detection and Identification of Different Metal Materials with Same Damage of Stretching Based on Acoustic Emission in Audible Domain
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