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Ultrasonic detection of transversal cracks in rail heads – theoretical approach

Katz Tomasz, Mackiewicz Sławomir, Ranachowski Zbigniew, Kowalewski Zbigniew L., Anatolik Łukasz

Engineering Transactions

2021

Vol. 69, iss. 4

437--456

In the paper the calculation of ultrasonic field generated by the transmitting transducer and the pulse-echo amplitude received after beam reflection at the defect in tested material is presented. The focus of the authors is directed on the specific transducer – defect configurations where the common methods of determination of ultrasonic beam trajectory fails. The developed analytical model is based on well-established principles of elastodynamic theory and forms the basis for computer program for simulation of ultrasonic examination of railway rails.