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2008. . No. 3(41) - Sep 2008, pp. 76-78

Acoustic-Emission Testing of Freight Car Couplers

V. V. Muravjev, S. A. Grassman, V. V. Ivlev, L. N. Stepanova, E. Y. Lebedev, S. I. Kabanov, V. Y. Kovalev, V. P. Tyrin

This work describes a test bench for applying loads on freight car coupler yokes and the acoustic emission technique used to monitor such yokes and identify inner and outer defects such as fatigue cracks. Results of strain gauging tests are presented. We developed a rejection criterion based on analytical and tabular methods of the acoustic emission technique. 
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