Monitoring and Evaluation of Cyclic Damage in Preinitiation Stages of Fatigue Process Using Nondestructive Testing Methods

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F12%3APU99673" target="_blank" >RIV/00216305:26210/12:PU99673 - 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

Monitoring and Evaluation of Cyclic Damage in Preinitiation Stages of Fatigue Process Using Nondestructive Testing Methods

Popis výsledku v původním jazyce

This paper treats the evaluation of fatigue damage appearing during the cyclic bending loading of the samples of titanium Grade 2 and Grade 5 (Ti6Al4V). Purpose was to detect the microstructural changes in pre-initiation stage (the stage before creation or identification of short cracks) during the fatigue loading using acoustic emission method and electron microscopy. Microscopic observation was used mainly to detect of the first short (micro) cracks. The measurement was completed with analysis of loading (resonance) frequency changes of the fatigue test device. In the acoustic emission signal we have found some changes, which can correlate with the evolution of dislocation structures or the creation of the surface relief in pre-initiation stage. The measurement results verification will be based on detailed observation of the material surface by electron microscopy and Xray diffraction in other research.

Název v anglickém jazyce

Monitoring and Evaluation of Cyclic Damage in Preinitiation Stages of Fatigue Process Using Nondestructive Testing Methods

Popis výsledku anglicky

This paper treats the evaluation of fatigue damage appearing during the cyclic bending loading of the samples of titanium Grade 2 and Grade 5 (Ti6Al4V). Purpose was to detect the microstructural changes in pre-initiation stage (the stage before creation or identification of short cracks) during the fatigue loading using acoustic emission method and electron microscopy. Microscopic observation was used mainly to detect of the first short (micro) cracks. The measurement was completed with analysis of loading (resonance) frequency changes of the fatigue test device. In the acoustic emission signal we have found some changes, which can correlate with the evolution of dislocation structures or the creation of the surface relief in pre-initiation stage. The measurement results verification will be based on detailed observation of the material surface by electron microscopy and Xray diffraction in other research.

Druh

D - Stať ve sborníku

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

<a href="/cs/project/FR-TI1%2F371" target="_blank" >FR-TI1/371: *Integrovaný systém průběžného monitorování vybraných strojních uzlů a technologických procesů s využitím akustické emise</a><br>

Návaznosti

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

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 30th European Conference on Acoustic Emission Testing & 7th International Conference on Acoustic Emission EWGAE 30/ ICAE 7 Granada, September 2012

ISBN

978-84-615-9941-7

ISSN

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e-ISSN

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Počet stran výsledku

13

Strana od-do

"111-1"-"111-13"

Název nakladatele

University of Granada and EWGAE

Místo vydání

Granada, Spain

Místo konání akce

Granada

Datum konání akce

12. 9. 2012

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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