Theoretical and Experimental Study of the Distribution of Stress Waves in Linear Viscoelastic Media
N. V. Olali *
Niger Delta University, Bayelsa State, Nigeria.
M. A. Orukari
Niger Delta University, Bayelsa State, Nigeria.
N. M. Zazymko
National Pedagogical University, Kiev, Ukraine.
M. P. Malezhyk
National Pedagogical University, Kiev, Ukraine.
*Author to whom correspondence should be addressed.
Abstract
The influence of viscoelastic properties of an optically sensitive epoxy material on the propagation of pressure waves in a rod was carried out. In the article of determination of the visco-elastic operator, the theoretical relations for the case of propagation of longitudinal waves are obtained based on the results of a photoelastic experiment. The noticeable difference between the experimental data and the calculation at the pulse end can be explained by the change in the propagation velocity of the Fourier decomposition component of the real impulse.
Keywords: Photoelastic experiment, viscoelastic properties, fourier decomposition, waves of pressure