About: Investigation of composite material degradation indicators using acoustic measurement: comparison with laser vibrometry

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	This paper deals with investigation of acoustic material degradation indicator (attenuation decrement drop of selected natural frequency) measured by a custom-built experimental device. Samples of C/PPS fibre composite material were analyzed. Acoustic signals were recorded and processed using spectral analysis and sound signal regression. Data measured by this method were verified by comparative experiment. Specimens were simultaneously measured using both acoustic experimental device and laser vibrometer. Modal analysis of the specimen were carried out prior to the experiment. This enabled assessment of specimens natural modes and therefore the best impact zone. In total, 10 measurements were performed for each specimen at the same level of degradation. Measured data were then processed and compared. The specimens were repetitively measured after designated number of loading cycles. This paper deals with investigation of acoustic material degradation indicator (attenuation decrement drop of selected natural frequency) measured by a custom-built experimental device. Samples of C/PPS fibre composite material were analyzed. Acoustic signals were recorded and processed using spectral analysis and sound signal regression. Data measured by this method were verified by comparative experiment. Specimens were simultaneously measured using both acoustic experimental device and laser vibrometer. Modal analysis of the specimen were carried out prior to the experiment. This enabled assessment of specimens natural modes and therefore the best impact zone. In total, 10 measurements were performed for each specimen at the same level of degradation. Measured data were then processed and compared. The specimens were repetitively measured after designated number of loading cycles. (en)
Title	Investigation of composite material degradation indicators using acoustic measurement: comparison with laser vibrometry Investigation of composite material degradation indicators using acoustic measurement: comparison with laser vibrometry (en)
skos:prefLabel	Investigation of composite material degradation indicators using acoustic measurement: comparison with laser vibrometry Investigation of composite material degradation indicators using acoustic measurement: comparison with laser vibrometry (en)
skos:notation	RIV/68378297:_____/12:00384611!RIV13-GA0-68378297
http://linked.open...avai/predkladatel	Ústav teoretické a aplikované mechaniky AV ČR, v. v. i.
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP105/10/2159)
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Šperl, Martin Kytýř, Daniel Valach, Jaroslav Urushadze, Shota Fíla, Tomáš
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav teoretické a aplikované mechaniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	142880
http://linked.open...ai/riv/idVysledku	RIV/68378297:_____/12:00384611
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	attenuation decrement; fibre composite; material degradation; fatique (en)
http://linked.open.../riv/klicoveSlovo	material degradation fatique attenuation decrement fibre composite
http://linked.open...ontrolniKodProRIV	[5E42D7ACDE21]
http://linked.open...v/mistoKonaniAkce	Telč
http://linked.open...i/riv/mistoVydani	Prague
http://linked.open...i/riv/nazevZdroje	Proceedings of XIIIth Bilateral Czech / German Symposium Experimental methods and numerical simulation in engineering sciences
http://linked.open...in/vavai/riv/obor	JM
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Modelling of membrane action of floor slabs exposed to fire
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Kytýř, Daniel Valach, Jaroslav Šperl, Martin Urushadze, Shota Fíla, Tomáš
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2012-06-05 (xsd:date)
number of pages	4 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Czech Technical University in Prague, Faculty of Transportation Sciences
https://schema.org/isbn	978-80-01-05062-0
is http://linked.open...avai/riv/vysledek of	Investigation of composite material degradation indicators using acoustic measurement: comparison with laser vibrometry

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