Crack Localization Using Wavelet Transformation of Dispersive Waves in Steel Plates

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F08%3APU78253" target="_blank" >RIV/00216305:26220/08:PU78253 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Crack Localization Using Wavelet Transformation of Dispersive Waves in Steel Plates

Original language description

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.

Czech name

Crack Localization Using Wavelet Transformation of Dispersive Waves in Steel Plates

Czech description

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.

Type

D - Article in proceedings

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2008

Confidentiality

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

Article name in the collection

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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Number of pages

8

Pages from-to

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Publisher name

Japanese Society for Non-destructive Inspection

Place of publication

Kyoto, Japan

Event location

Kyoto

Event date

Dec 9, 2008

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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