Residual Creep Life Assessment - is the Current Approach Viable?

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

Residual Creep Life Assessment - is the Current Approach Viable?

Popis výsledku v původním jazyce

The service life of components designed to operate under loading at elevated temperatures is limited by the creep deformation and fracture phenomena Unfortunately, the complete physical description of the creep phenomenon is still not available. Phenomenological approaches are used instead, but they do not provide sufficient accuracy and reliability for residual creep life assessment. The most important factors which make the results unreliable are analyzed in the present paper; some of them are illustrated by examples from our recently published creep results on creep resistant structural steels. The factors are mainly a natural scatter in the material's properties due to manufacturing processes and extrapolations involved in the procedure of residuallife assessment. Some general suggestions to overcome these problems are made and the need for a new approach and new experimental techniques is presented.

Název v anglickém jazyce

Residual Creep Life Assessment - is the Current Approach Viable?

Popis výsledku anglicky

The service life of components designed to operate under loading at elevated temperatures is limited by the creep deformation and fracture phenomena Unfortunately, the complete physical description of the creep phenomenon is still not available. Phenomenological approaches are used instead, but they do not provide sufficient accuracy and reliability for residual creep life assessment. The most important factors which make the results unreliable are analyzed in the present paper; some of them are illustrated by examples from our recently published creep results on creep resistant structural steels. The factors are mainly a natural scatter in the material's properties due to manufacturing processes and extrapolations involved in the procedure of residuallife assessment. Some general suggestions to overcome these problems are made and the need for a new approach and new experimental techniques is presented.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2003

Kód důvěrnosti údajů

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

Název statě ve sborníku

Asset Management of Aged Plant and Materials: Assessment Methods.

ISBN

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ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

235-244

Název nakladatele

EMAS Publishing Ltd.

Místo vydání

Sheffield, U. K.

Místo konání akce

Cape Town [ZA]

Datum konání akce

7. 4. 2003

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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