Health Monitoring of Structures with Fatigue Damage and Applied Composite Repair

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F09%3A00157975" target="_blank" >RIV/68407700:21220/09:00157975 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Health Monitoring of Structures with Fatigue Damage and Applied Composite Repair

Popis výsledku v původním jazyce

This work focuses on the development of a health-monitoring system that can be used on aircraft structure with fatigue cracks repaired by a composite patch. For the starting experiments, dog-bone type aluminum specimens loaded in tension-tension cycles were selected. On these specimens were pre-made central cracks ending with bored holes. Over the cracked areas were bonded carbon/epoxy patch repairs with embedded FBG sensors. The goal of the experiment was to use FBG sensors to detect stress redistribution in the composite repair due to the initiation of fatigue cracking or debonding on the repair patch edge. Real-time monitoring of FBG during the fatigue loading was successfully used for the detection of crack growth. This approach was also compared with static measurements during regular breaks of cyclic loading, when experimental specimens were loaded in tension and reflected spectrums from FBG were captured

Název v anglickém jazyce

Health Monitoring of Structures with Fatigue Damage and Applied Composite Repair

Popis výsledku anglicky

This work focuses on the development of a health-monitoring system that can be used on aircraft structure with fatigue cracks repaired by a composite patch. For the starting experiments, dog-bone type aluminum specimens loaded in tension-tension cycles were selected. On these specimens were pre-made central cracks ending with bored holes. Over the cracked areas were bonded carbon/epoxy patch repairs with embedded FBG sensors. The goal of the experiment was to use FBG sensors to detect stress redistribution in the composite repair due to the initiation of fatigue cracking or debonding on the repair patch edge. Real-time monitoring of FBG during the fatigue loading was successfully used for the detection of crack growth. This approach was also compared with static measurements during regular breaks of cyclic loading, when experimental specimens were loaded in tension and reflected spectrums from FBG were captured

Druh

D - Stať ve sborníku

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

<a href="/cs/project/FT-TA3%2F043" target="_blank" >FT-TA3/043: *Kompozitové opravy leteckých konstrukcí.</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název statě ve sborníku

Structural Health Monitoring 2009: From System Integration to Autonomous Systems

ISBN

978-1-60595-007-5

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

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Název nakladatele

DEStech Publications, Inc.

Místo vydání

Lancaster, Pennsylvania

Místo konání akce

Stanford, CA

Datum konání akce

9. 9. 2009

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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