Engineering Transactions, 69, 4, pp. 437–456, 2021
10.24423/EngTrans.1695.20211220

Ultrasonic Detection of Transversal Cracks in Rail Heads – Theoretical Approach

Tomasz KATZ
Institute of Fundamental Technological Research Polish Academy of Sciences
Poland

Sławomir MACKIEWICZ
Institute of Fundamental Technological Research Polish Academy of Sciences
Poland

Zbigniew RANACHOWSKI
Institute of Fundamental Technological Research Polish Academy of Sciences
Poland

Zbigniew L. KOWALEWSKI
Institute of Fundamental Technological Research Polish Academy of Sciences
Poland

Łukasz ANTOLIK
Railway Research Institute
Poland

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.
Keywords: non-destructive testing; rolling contact fatigue damage; ultrasonic examination
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DOI: 10.24423/EngTrans.1695.20211220

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Polish Academy of Sciences, Warsaw, Poland