Source energy distribution and successive forwarding in layered and functionally graded elastic substructures

Author

Glushkov, E.V. ; Glushkova, N.V. ; Fomenko, S.I.

Author_Institution

Inst. for Math., Mech. & Inf., Kuban State Univ., Krasnodar, Russia

fYear

2014

fDate

26-30 May 2014

Firstpage

80

Lastpage

82

Abstract

The paper is focused on the source energy distribution in vertically inhomogeneous elastic half-spaces with soft internal channels. The analysis is performed using the Fourier transform technique and Green´s matrix integral representations. Time-averaged wave energy fluxes are calculated based on the Umov-Poynting energy vector concept. The excited guided waves exhibit a peculiar effect of wave energy localization in certain, specific for each wave mode, frequency ranges. Outwardly, it looks like a successive energy forwarding from every current mode to the next one.

Keywords

Fourier transforms; Green´s function methods; elasticity; functionally graded materials; integral equations; Fourier transform technique; Green´s matrix integral representations; Umov-Poynting energy vector concept; excited guided waves; functionally graded elastic substructures; soft internal channels; source energy distribution; successive forwarding; time-averaged wave energy fluxes; vertically inhomogeneous elastic half-spaces; wave energy localization; Coatings; Diffraction; Green products; Laminates; Nonhomogeneous media; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Days on Diffraction (DD), 2014

Conference_Location

St. Petersburg

Print_ISBN

978-1-4799-7331-6

Type

conf

DOI

10.1109/DD.2014.7036428

Filename

7036428