The effect of a free surface on fatigue crack behaviour

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F10%3A00354030" target="_blank" >RIV/68081723:_____/10:00354030 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26210/10:PU87726

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

The effect of a free surface on fatigue crack behaviour

Original language description

The effect of a free surface on fatigue crack behaviour is discussed in the paper and generalized stress intensity factor methodology is used for a reliable estimation of the fatigue crack propagation rate in the area close to a free surface, where the effect of vertex singularity is important. It is shown that a decrease in the stress singularity exponent close to the vertex point leads to a decrease in the fatigue crack propagation rate and contributes to a typical curved crack front shape. The numerical estimations of the crack shape correspond well with experimental observations taken from the literature. The proposed methodology facilitates explanation of the experimentally observed decrease in the fatigue crack propagation rate (FCPR) for thin structures. It is shown, that decrease of FCPR depends on Poisson?s ratio and parameters of the Paris?Erdogan law for corresponding materials.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JL - Fatigue and fracture mechanics

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2010

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

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Volume of the periodical

32

Issue of the periodical within the volume

8

Country of publishing house

GB - UNITED KINGDOM

Number of pages

4

Pages from-to

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UT code for WoS article

000278281100005

EID of the result in the Scopus database

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