Abstract
The ultrasonic reflection, and transmission, coefficients can be used to determine the extent of interfacial imperfections such as solid-solid contacts, in which two dry, solid bodies are loaded against one another [1]. This paper describes the results of studies of the interaction of ultrasound with three different solid-solid contact systems. For each of these systems reflection coefficient measurements were made as a function of load. These measurements were made in the low frequency regime and so, taking the quasi-static approximation [2], it was possible to calculate the interfacial stiffness. A numerical contact model is used to predict the interfacial stiffness. The experimental and numerical results are compared and the reasons for the differences explained.
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© 1999 Springer Science+Business Media New York
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Drinkwater, B.W., Dwyer-Joyce, R.S., Robinson, A.M. (1999). The Use of Ultrasound to Investigate Rough Surface Contact Phenomena. In: Thompson, D.O., Chimenti, D.E. (eds) Review of Progress in Quantitative Nondestructive Evaluation. Review of Progress in Quantitative Nondestructive Evaluation, vol 18 A. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-4791-4_187
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DOI: https://doi.org/10.1007/978-1-4615-4791-4_187
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