Original title: Optical Interferometry Methods Used to Study Interaction of Acoustical Waves with Structural Inhomogenities
Translated title: Optické interferometrické metody využité pro studium interakcí akustických vln s nehomogenitami materiálu
Authors: Trnka, Jan ; Dvořáková, Pavla
Document type: Papers
Conference/Event: Symposium on Advances in Experimental Mechanics /25./, České Budějovice, Český Krumlov (CZ), 2008-09-24 / 2008-09-27
Year: 2008
Language: eng
Abstract: [eng] [cze]
The paper is concerned with interpretation of transient wave phenomena occurring in impacted thin plate with simple structural inhomogenities. Wave phenomena in the vicinity the hole or the added mass, is studied by means of simultaneous application of the double pulse ESPI and D-CH laservibrometry. FFT is used to analyse point-wise history of velocity or displacements in frequency domain. Příspěvek pojednává o analýze vlnových dějů v okolí nehomogenit vyskytujících se tenkých deskách. Děje jsou detekovány současně pomocí ESPI a laservibrometrie. Signály jsou převedeny z časové oblasti do frekvenční pomocí FFT.
Keywords: material defects; nondestructive testing; thin-walled shells
Project no.: CEZ:AV0Z20760514 (CEP), GA101/07/0588 (CEP)
Funding provider: GA ČR
Host item entry: 25th Danubia-Adria Symposium on Advances in Experimental Mechanics, ISBN 978-80-01-04162-8

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0163561

Permalink: http://www.nusl.cz/ntk/nusl-39118


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Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers