Crack Localization Using Wavelet Transformation of Dispersive Waves in Steel Plates

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Crack Localization Using Wavelet Transformation of Dispersive Waves in Steel Plates

Popis výsledku v původním jazyce

Possible limits of usage localization by arrival times of S0 and A0 modes were discussed for small coupon specimen. Hsu-Nielson AE source was applied on 25-layered SPCC/SUS420J2 thin plate. The extensional and flexural modes were distinguished for everysensor in every AE event. The group velocities were computed for selected frequencies for each event. Good correlation was observed between location of sources and results of our localization. Nevertheless, we suppose that this kind of localization is not suitable for automatic localization of real AE sources in small coupon specimens. The more suitable is to find arrival time of first incoming wave without distinguishing of S0 or A0 modes. The arrival time should be determined on the same frequency component of the first incoming wave at all sensors.

Název v anglickém jazyce

Crack Localization Using Wavelet Transformation of Dispersive Waves in Steel Plates

Popis výsledku anglicky

Possible limits of usage localization by arrival times of S0 and A0 modes were discussed for small coupon specimen. Hsu-Nielson AE source was applied on 25-layered SPCC/SUS420J2 thin plate. The extensional and flexural modes were distinguished for everysensor in every AE event. The group velocities were computed for selected frequencies for each event. Good correlation was observed between location of sources and results of our localization. Nevertheless, we suppose that this kind of localization is not suitable for automatic localization of real AE sources in small coupon specimens. The more suitable is to find arrival time of first incoming wave without distinguishing of S0 or A0 modes. The arrival time should be determined on the same frequency component of the first incoming wave at all sensors.

Druh

D - Stať ve sborníku

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Progress in acoustic emission XIV, Proceedings of 19th International Acoustic Emission Symposium

ISBN

978-4-931018-13-6

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

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Název nakladatele

Japanese Society for Non-destructive Inspection

Místo vydání

Kyoto, Japan

Místo konání akce

Kyoto

Datum konání akce

9. 12. 2008

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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