EFFECT OF TEMPERATURE ON THE FATIGUE CRACK GROWTH RATES OF AUSTENITIC STAINLESS STEELS IN AN AIR ENVIRONMENT FOR ASME CODE SECTION XI

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F24%3A10256701" target="_blank" >RIV/61989100:27360/24:10256701 - isvavai.cz</a>

Výsledek na webu

<a href="https://asmedigitalcollection.asme.org/PVP/proceedings-abstract/PVP2024/88476/V001T01A027/1209334" target="_blank" >https://asmedigitalcollection.asme.org/PVP/proceedings-abstract/PVP2024/88476/V001T01A027/1209334</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1115/PVP2024-123490" target="_blank" >10.1115/PVP2024-123490</a>

Jazyk výsledku

angličtina

Název v původním jazyce

EFFECT OF TEMPERATURE ON THE FATIGUE CRACK GROWTH RATES OF AUSTENITIC STAINLESS STEELS IN AN AIR ENVIRONMENT FOR ASME CODE SECTION XI

Popis výsledku v původním jazyce

Fatigue crack growth rates da/dN for stainless steels in air environment are provided by the ASME Boiler and Pressure Vessel Code in Section XI. The fatigue crack growth rates are given by da/dN = CF(ΔK)n, where CF is the fatigue crack growth rate coefficient, n is the fatigue crack growth rate exponent and ΔK is the stress intensity factor range. The coefficient CF consists of a temperature parameter, ST, and a scaling parameter, SR, which is a function of the stress ratio, R. A function for the ST parameter is given in Appendix Y of ASME Code Section XI: ST = 10^(-8.714+0,00134*T+0,00000334*T^2+0,00000000595*T^3) where T is the temperature in °C. However, the functional form is cumbersome and the original basis for the temperature function is questionable, consisting mostly of testing outside of the bounds of the temperatures of interest to its application in ASME Code Section XI Appendix Y. Following a review of the literature for test data at temperatures more directly relevant to the Code, the function of the temperature parameter is reviewed. An alternative equation for ST for stainless steels in an air environment is proposed for ASME Code Section XI Appendix Y, based on the literature experimental data surveyed in this study.

Název v anglickém jazyce

EFFECT OF TEMPERATURE ON THE FATIGUE CRACK GROWTH RATES OF AUSTENITIC STAINLESS STEELS IN AN AIR ENVIRONMENT FOR ASME CODE SECTION XI

Popis výsledku anglicky

Fatigue crack growth rates da/dN for stainless steels in air environment are provided by the ASME Boiler and Pressure Vessel Code in Section XI. The fatigue crack growth rates are given by da/dN = CF(ΔK)n, where CF is the fatigue crack growth rate coefficient, n is the fatigue crack growth rate exponent and ΔK is the stress intensity factor range. The coefficient CF consists of a temperature parameter, ST, and a scaling parameter, SR, which is a function of the stress ratio, R. A function for the ST parameter is given in Appendix Y of ASME Code Section XI: ST = 10^(-8.714+0,00134*T+0,00000334*T^2+0,00000000595*T^3) where T is the temperature in °C. However, the functional form is cumbersome and the original basis for the temperature function is questionable, consisting mostly of testing outside of the bounds of the temperatures of interest to its application in ASME Code Section XI Appendix Y. Following a review of the literature for test data at temperatures more directly relevant to the Code, the function of the temperature parameter is reviewed. An alternative equation for ST for stainless steels in an air environment is proposed for ASME Code Section XI Appendix Y, based on the literature experimental data surveyed in this study.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/EF17_048%2F0007373" target="_blank" >EF17_048/0007373: Predikce poškození konstrukčních materiálů</a><br>

Návaznosti

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

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of ASME 2024 Pressure Vessels &amp; Piping Conference, PVP2024. Volume 1. July 28-August 2, 2024 Bellevue, Washington

ISBN

978-0-7918-8847-6

ISSN

0277-027X

e-ISSN

0277-027X

Počet stran výsledku

7

Strana od-do

"V001T01A027"

Název nakladatele

American Society of Mechanical Engineers

Místo vydání

New York

Místo konání akce

Bellevue

Datum konání akce

28. 7. 2024

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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