Transmission and resonances in layered phononic crystals with damages

Author

Golub, M.V. ; Chuanzeng Zhang

Author_Institution

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

fYear

2012

fDate

May 28 2012-June 1 2012

Firstpage

92

Lastpage

97

Abstract

Elastic wave propagation in layered non-damaged and damaged phononic crystals is investigated using the extended transfer matrix method, the boundary integral equation method and the spring boundary conditions. Two different models are developed to approximate the layer with a distribution of damages, namely, a periodic array of cracks and continuously distributed springs in the layer. The focus of this analysis is on the wave transmission and reflection, band-gaps, localization and resonance phenomena due to crack-like damages.

Keywords

boundary integral equations; cracks; elastic waves; energy gap; phononic crystals; band-gaps; boundary integral equation method; continuously distributed springs; crack periodic array; crack-like damages; elastic wave propagation; extended transfer matrix method; layered nondamaged phononic crystals; layered phononic crystal resonance; layered phononic crystal transmission; localization; resonance phenomena; spring boundary conditions; wave reflection; wave transmission; Boundary conditions; Crystals; Photonic band gap; Propagation; Springs; Stress;

fLanguage

English

Publisher

ieee

Conference_Titel

Days on Diffraction (DD), 2012

Conference_Location

St. Petersburg

Print_ISBN

978-1-4673-4418-0

Type

conf

DOI

10.1109/DD.2012.6402758

Filename

6402758