Modelling of in-plane wave propagation in a plate using spectral element method and Kane-Mindlin theory with application to damage detection

Magdalena Rucka

Modelling of in-plane wave propagation in a plate using spectral element method and Kane-Mindlin theory with application to damage detection

Abstract

This paper presents results of experimental and numerical analyses of in-plane waves propagatingin a 5 mm-thick steel plate in the frequency range of 120-300 kHz. For such a thickness/frequency ratio,extensional waves reveal dispersive character. To model in-plane wave propagation taking into account thethickness-stretch effect, a novel 2D spectral element, based on the Kane-Mindlin theory, was formulated. Anapplication of in-plane waves to damage detection is also discussed. Experimental investigations employing alaser vibrometer demonstrated that the position and length of a defect can precisely be identified by analysingreflected and diffracted waves.

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Magdalena Rucka prof. dr hab. inż.

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Category:: Articles
Type:: artykuł w czasopiśmie wyróżnionym w JCR
Published in:: ARCHIVE OF APPLIED MECHANICS no. 81, pages 1877 - 1888,
ISSN: 0939-1533
Language:: English
Publication year:: 2011
Bibliographic description:: Rucka M.: Modelling of in-plane wave propagation in a plate using spectral element method and Kane-Mindlin theory with application to damage detection// ARCHIVE OF APPLIED MECHANICS. -Vol. 81, nr. No. 12 (2011), s.1877-1888
Verified by:: Gdańsk University of Technology