The effect of the singularity induced by the free surface on fatigue crack growth in thin structures

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F08%3A00319017" target="_blank" >RIV/68081723:_____/08:00319017 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26210/08:PU78902

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 the singularity induced by the free surface on fatigue crack growth in thin structures

Original language description

In many industrial applications is necessary to predict fatigue lifetime of thin structures, where the stress field near the crack front have a real three-dimensional nature. Due to the existence of vertex singularity in the point where the crack front touching free surface, crack propagation in 3D structures cannot be reduced to a series of plane strain or plane stress problems along the crack front edge. The paper describes the influence of vertex singularity on the distribution of the stresses aroundthe crack front for three-dimensional body. The distribution of the stress singularity through the thickness of the specimen gives us indication of the crack behavior in thin structures. The results contribute to a better understanding of the crack behavior in thin structures, and can help to more reliable estimates of their residual fatigue life.

Czech name

Vliv singularity indukované volným povrchem na rychlost šíření únavové trhliny v tenkých vzorcích

Czech description

U mnoha aplikací je nutné predikovat životnost tenkých struktur. Díky existenci rohové singularity má rozdělení napětí v okolí čela trhliny trojdimenzonální charakter. Velikost singularity napětí po čele trhliny nám dává odhad chování trhliny v tenkém vzorku. Velikost singularity se dá dobře korelovat s rychlostí šíření únavové trhliny a pomáhá k přesnějšímu odhadu zbytkové únavové životnosti tenkých těles.

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

2008

Confidentiality

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

Name of the periodical

Key Engineering Materials

ISSN

1013-9826

e-ISSN

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Volume of the periodical

385-387

Issue of the periodical within the volume

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Country of publishing house

CH - SWITZERLAND

Number of pages

4

Pages from-to

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UT code for WoS article

000262126000080

EID of the result in the Scopus database

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