Acoustic emission localization in thin multi-layer plates using first-arrival determination

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F13%3APU103315" target="_blank" >RIV/00216305:26220/13:PU103315 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.ymssp.2012.11.008" target="_blank" >http://dx.doi.org/10.1016/j.ymssp.2012.11.008</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ymssp.2012.11.008" target="_blank" >10.1016/j.ymssp.2012.11.008</a>

Result language
angličtina
Original language name
Acoustic emission localization in thin multi-layer plates using first-arrival determination
Original language description
In the case of thin plates, there exist two modes of propagation which travel at different velocities and exhibit dispersion characteristics. Techniques that are based on Gabor wavelet transform or cross-correlation technique are commonly used to locateacoustic emission (AE) events which occur in large plates. Due to side-edge reflections and short source-to-sensor distances, these techniques are not suitable for small plate-like specimens. If the thickness of the plate-like specimen is smaller than aspecific value, the first-coming (extensional) mode will show non-dispersive behavior in AE frequency range. Under such a condition, the conventional localization method can be used for detecting first-arrival times on non-dispersive extensional mode. Inprevious paper, authors of the paper developed a first-arrival automatic determination technique based on Akaike information criterion (AIC) for thin metal plates. This paper compares this technique with another AIC approach, STA/LTA met
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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