On the reproducibility of transducer coupling for acoustic emission testing

被引：2

作者：

Hensman, J. J. ^{[1
]}

Cristodaro, C., V ^{[2
]}

Pierce, S. G. ^{[1
]}

Worden, K. ^{[1
]}

机构：

[1] Univ Sheffield, Dynam Res Grp, Dept Mech Engn, Mappin St, Sheffield S1 3JD, S Yorkshire, England

[2] Politecn Torino, Dept Ingn Meccan, I-10129 Turin, Italy

来源：

ACOUSTIC EMISSION TESTING | 2006年 / 13-14卷

关键词：

acoustic emission; transducer coupling; fatigue; cross-correlation;

D O I：

10.4028/www.scientific.net/AMR.13-14.117

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

An acoustic emission test was simulated using a three point bend specimen and an artificial. AE source. Waveform data was recorded as the sample was cyclically loaded in three point bending, and the cross correlation coefficient of the waveforms was used to measure the repeatability of the test. Results were twofold: the stress state of a specimen affects the ultrasonic propagation therein; and the coupling condition of a transducer may not remain constant during a test.

引用

页码：117 / +

页数：2

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