Formulas for the critical length of mode II and III cracks emanating from circumferential U–notches
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F24%3APU150949" target="_blank" >RIV/00216305:26210/24:PU150949 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.engfracmech.2024.109955" target="_blank" >https://doi.org/10.1016/j.engfracmech.2024.109955</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.engfracmech.2024.109955" target="_blank" >10.1016/j.engfracmech.2024.109955</a>
Alternative languages
Result language
angličtina
Original language name
Formulas for the critical length of mode II and III cracks emanating from circumferential U–notches
Original language description
The crack emanating from the notch reaches its critical length when the notch ceases to have effect on the crack tip stress field. In this paper a semi–empirical approach to the critical length previously proposed for mode I cracks is extended to shear–mode cracks using finite element calculations. The existing formula for the critical crack length aIc of mode I cracks emanating from circumferential U–notches in round specimens is verified also for its invariance to the specimen thickness variation and its uncertainty is quantified to be less than 1 %. This uncertainty level is then employed to obtain statistically compatible formulae for critical crack lengths aIIc and aIIIc as functions of the notch depth, the notch-root radius and the notch depth normalized to specimen thickness. These formulae are useful for a correct determination of the pre-crack length free of the notch effect in fracture toughness experiments and for a proper evaluation of stress intensity factors in experimental investigations of fatigue crack propagation.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Engineering Fracture Mechanics
ISSN
0013-7944
e-ISSN
1873-7315
Volume of the periodical
298
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
15
Pages from-to
„109955-1“-„109955-15“
UT code for WoS article
001198282600001
EID of the result in the Scopus database
2-s2.0-85185411603