Investigation of composite material degradation indicators using acoustic measurement: comparison with laser vibrometry
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F12%3A00384611" target="_blank" >RIV/68378297:_____/12:00384611 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Investigation of composite material degradation indicators using acoustic measurement: comparison with laser vibrometry
Original language 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.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JM - Structural engineering
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GAP105%2F10%2F2159" target="_blank" >GAP105/10/2159: Modelling of membrane action of floor slabs exposed to fire</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of XIIIth Bilateral Czech / German Symposium Experimental methods and numerical simulation in engineering sciences
ISBN
978-80-01-05062-0
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
35-38
Publisher name
Czech Technical University in Prague, Faculty of Transportation Sciences
Place of publication
Prague
Event location
Telč
Event date
Jun 5, 2012
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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