Article

Effect of Sheet Wall Thickness on Displacement Diagrams of Normal Lamb Waves

Ponkina, A. A., Murav'eva, О. V., Volkova, L. V., Chukhlantseva, T. S.

Abstract. Theoretical studies of the effect of thickness and operating frequency on displacement diagrams in sheets for symmetric and antisymmetric modes of normal Lamb waves are carried out. Recommendations for choosing the optimal force action of the transducer to achieve maximum efficiency when measuring the sheet wall thickness are offered. Thus, for the A0 mode, the displacement component W_A0 prevails over U_A0 over the entire range of relative plate thickness. And for the S0 mode with a relative thickness of k_td ≥ 1,8, the W_S0 offset prevails over U_S0.

Keywords: Lamb waves, sheets, dispersion curves, change in thickness

Pages: 128–134Total pages: 7

Funding, support: Исследование выполнено за счет гранта Российского научного фонда (проект № 18-79-10122) с использованием УНУ «Информационно-измерительный комплекс для исследований акустических свойств материалов и изделий» (рег. номер: 586308).

Original title: Влияние волновой толщины стенки листа на эпюры смещений нормальных волн Лэмба

Authors: Понькина А. А., Муравьева О. В., Волкова Л. В., Чухланцева Т. С.

Published in: Instrumentation Engineering in the XXI Century – 2020. Integration of Science, Education and Production: Proceedings of the XVI Russian National Scientific Conference (December 2–4, 2020, Izhevsk, Russian Federation)

Year of publication: 2020

Цитирование по ГОСТ 7.1-2003:GOST 7.1-2003 citation:
Ponkina, A. A., Murav'eva, О. V., Volkova, L. V., Chukhlantseva, T. S. Effect of sheet wall thickness on displacement diagrams of normal Lamb waves // Instrumentation Engineering in the XXI Century – 2020. Integration of Science, Education and Production : Proceedings of the XVI Russian National Scientific Conference (December 2–4, 2020, Izhevsk, Russian Federation). – Izhevsk, Russia : Publishing House of Kalashnikov ISTU, 2020. – Pp. 128–134.