Definition of fatigue crack growth thresholds for ferritic steels in fitness-for-service codes

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27690%2F18%3A10241974" target="_blank" >RIV/61989100:27690/18:10241974 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27690/18:10241972
Result on the web
<a href="http://dx.doi.org/10.1115/PVP201884940" target="_blank" >http://dx.doi.org/10.1115/PVP201884940</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1115/PVP201884940" target="_blank" >10.1115/PVP201884940</a>

Result language
angličtina
Original language name
Definition of fatigue crack growth thresholds for ferritic steels in fitness-for-service codes
Original language description
Fatigue crack growth rates are expressed as a function of the stress intensity factor ranges. The fatigue crack growth thresholds are important characteristics of fatigue crack growth assessment for the integrity of structural components. Almost all materials used in these fatigue tests are ferritic steels. As a result, the reference fatigue crack growth rates and the fatigue crack growth thresholds for ferritic steels were established as rules and they were provided by many fitness-for-service (FFS) codes. However, the thresholds are not well defined in the range of negative stress ratio. There are two types of thresholds under the negative stress ratio. That is, constant thresholds and increment of thresholds with decreasing stress ratios. The objective of this paper is to introduce the thresholds provided by FFS codes and to analyze the thresholds using crack closure. In addition, based on the experimental data, definition of the threshold is discussed to apply to FFS codes. Finally, threshold for ferritic steels under the entirely condition of stress ratio is proposed to the ASME Code Section XI. Copyright (C) 2018 ASME.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
ASME 2018 Pressure Vessels & Piping Conference (PVP2018) : July 15-20, 2018, Prague, Czech Republic
ISBN
978-0-7918-5158-6
ISSN
0277-027X
e-ISSN
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Number of pages
7
Pages from-to
7
Publisher name
ASME
Place of publication
New York
Event location
Praha
Event date
Jul 15, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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