A probabilistic stress-life model supported by weakest link principle and highly-stressed volume/surface area concepts

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F24%3A00369192" target="_blank" >RIV/68407700:21220/24:00369192 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.ijfatigue.2023.108006" target="_blank" >https://doi.org/10.1016/j.ijfatigue.2023.108006</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijfatigue.2023.108006" target="_blank" >10.1016/j.ijfatigue.2023.108006</a>

Result language

angličtina

Original language name

A probabilistic stress-life model supported by weakest link principle and highly-stressed volume/surface area concepts

Original language description

This article introduces a probabilistic fatigue model that combines the principles of the weakest link theory with the highly-stressed volume (HSV) or highly-stressed surface area (HSSA) concepts to estimate stress-life (P-S-N) curves for both unnotched (smooth) and notched large-scale specimens, for any prescribed failure probability. By incorporating probabilistic models, P-S-N curves corresponding to lower probabilities of failure can be obtained. The integration of HSV or HSSA with the weakest link principle enhances the estimation of fatigue strength for real elements or components, which often require testing with reduced-size specimens. The proposed model is verified by experimental fatigue data from the literature, specifically involving unnotched and notched cylindrical specimens subjected to different constant amplitude loadings. The results demonstrate the robustness and effectiveness of the model in estimating characteristic P-S-N curves at lower probabilities of failure.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20301 - Mechanical engineering

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2024

Confidentiality

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

Name of the periodical

International Journal of Fatigue

ISSN

0142-1123

e-ISSN

1879-3452

Volume of the periodical

178

Issue of the periodical within the volume

108006

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

14

Pages from-to

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UT code for WoS article

001102353200001

EID of the result in the Scopus database

2-s2.0-85174889674