Allowable external flaws and acceptance standards for high toughness ductile pipes subjected to bending moment and internal pressure

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27690%2F20%3A10247239" target="_blank" >RIV/61989100:27690/20:10247239 - isvavai.cz</a>
Result on the web
<a href="https://asmedigitalcollection.asme.org/PVP/proceedings-abstract/PVP2020/83815/V001T01A054/1089245" target="_blank" >https://asmedigitalcollection.asme.org/PVP/proceedings-abstract/PVP2020/83815/V001T01A054/1089245</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1115/PVP2020-21672" target="_blank" >10.1115/PVP2020-21672</a>

Result language
angličtina
Original language name
Allowable external flaws and acceptance standards for high toughness ductile pipes subjected to bending moment and internal pressure
Original language description
Failure stresses for ductile high toughness pipes are predicted by Limit Load Criteria based on a net section stress concept. Allowable flaws of the Acceptance Standards provided by the Article IWB-3514 in the ASME B&PV Code Section XI were determined by the Limit Load Criteria. The allowable flaws are applicable for ductile high toughness pipes with circumferential internal and external flaws. Authors have developed more precise equations using the Limit Load Criteria, which is called Modified Limit Load Criteria, hereafter. As the results of the Modified Limit Load Criteria, failure stresses for external flawed pipes are always smaller than the failure stresses obtained by the Limit Load Criteria provided by the ASME Code Section XI. It seems that the allowable flaw sizes of the Acceptance Standards provided by the ASME Code Section XI are less conservative for external flaws. The objective of this paper is to demonstrate difference of failure stresses by the Limit Load Criteria and Modified Limit Load Criteria for external flawed pipes. In addition, the allowable flaws of the Acceptance Standards are examined by large and small diameter pipes with external flaws using the Modified Limit Load Criteria.
Czech name
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Czech description
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Project
<a href="/en/project/EF17_048%2F0007373" target="_blank" >EF17_048/0007373: Damage Prediction of Structural Materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP Volume 1, 2020
ISBN
978-0-7918-8381-5
ISSN
0277-027X
e-ISSN
—
Number of pages
10
Pages from-to
1-6
Publisher name
American Society of Mechanical Engineers
Place of publication
New York
Event location
New York
Event date
Aug 3, 2020
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
—

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