Fatigue lifetime predictions of notched specimens based on the critical distance and stress concentration factors
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F24%3APU155031" target="_blank" >RIV/00216305:26210/24:PU155031 - isvavai.cz</a>
Alternative codes found
RIV/68081723:_____/24:00588164
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S016784422400329X?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S016784422400329X?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.tafmec.2024.104579" target="_blank" >10.1016/j.tafmec.2024.104579</a>
Alternative languages
Result language
angličtina
Original language name
Fatigue lifetime predictions of notched specimens based on the critical distance and stress concentration factors
Original language description
The theory of critical distances is used for evaluation of effects of notches on load-bearing capacity of notched components under static or cyclic fatigue loading. The theory can also be used to predict the fatigue life of notched components. One of the assumptions for a reliable prediction is that the critical distance is independent of the notch geometry and its stress concentration level. The study shows that the critical distance depends not only on the number of cycles to failure (under fatigue loading), but also on the notch radius. In this case, direct use of the critical distance leads to unreliable predictions. The study quantifies the relation between the model notch (from which the critical distance is determined) and the predicted notch by means of the ratio of their stress concentration factors. The predictions modified by the ratio of stress concentration factors provide results that are in satisfactory agreement with the experimental data. The predictions were made and verified on the basis of fatigue data measured on two stainless steels 1.4306 and 1.4307, and high strength structural steel S690QL. Smooth and notched specimens were tested on an ultrasonic fatigue machine in a symmetrical tension-compression mode. The results were evaluated in the regions of high cycle and very high cycle fatigue.
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
20300 - Mechanical engineering
Result continuities
Project
<a href="/en/project/GA21-14886S" target="_blank" >GA21-14886S: Influence of material properties of high strength steels on durability of engineering structures and bridges</a><br>
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
Theoretical and Applied Fracture Mechanics
ISSN
0167-8442
e-ISSN
1872-7638
Volume of the periodical
133
Issue of the periodical within the volume
104579
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
11
Pages from-to
„“-„“
UT code for WoS article
001273481000001
EID of the result in the Scopus database
2-s2.0-85198504888