Article

Research of Sound Velocity Anisotropy in Polyethylene Foam

Bogdan, O. P., Rysev, D. S.

Abstract. The article studies the possibility of estimating the anisotropy of the sound velocity in polyethylene foam by measuring the passage time of an ultrasonic pulse with a frequency of 50 kHz through a sheet in two mutually perpendicular directions. The dependence of sound velocity in polyethylene foam on the direction of sounding is shown, also the anisotropy coefficient is determined, which is 0.08–0.35, and its orthotropy is revealed.

Keywords: polyethylene foam, anisotropy of properties, acoustic method, sound velocity

Pages: 70–74Total pages: 5

Funding, support: Исследование выполнено при финансовой поддержке ФГБОУ ВО «ИжГТУ имени М. Т. Калашникова» в рамках научного проекта № ПАВ/20-90-17.

Original title: Исследование анизотропии скорости звука в пенополиэтилене

Authors: Богдан О. П., Рысев Д. 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:
Bogdan, O. P., Rysev, D. S. Research of sound velocity anisotropy in polyethylene foam // 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. 70–74.