Fatigue crack shape prediction based on the stress singularity exponent

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F12%3A00385372" target="_blank" >RIV/68081723:_____/12:00385372 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26210/12:PU94941

Result on the web

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.488-489.178" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/KEM.488-489.178</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.488-489.178" target="_blank" >10.4028/www.scientific.net/KEM.488-489.178</a>

Result language

angličtina

Original language name

Fatigue crack shape prediction based on the stress singularity exponent

Original language description

In many industrial applications it is necessary to predict fatigue lifetime of the structures where the stress field near the crack front have a three-dimensional nature. Due to the existence of vertex singularity in the point where the crack front touches free surface, crack propagation in 3D structures cannot be reduced to a series of plane strain or plane stress problems along the crack front. The paper describes the influence of the vertex singularity on crack shape for threedimensional structure. The iterative process for estimation of a real crack front based on a stress singularity exponent is presented. In each node defining the crack front the stress singularity exponent has been estimated and complete crack front shape corresponding to the constant stress singularity exponent was found. The methodology presented can help to estimate crack front shape in a linear elastic fracture mechanics framework and estimate fracture parameters of fatigue cracks more accurately.

Czech name

—

Czech description

—

Type

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

CEP classification

JL - Fatigue and fracture mechanics

OECD FORD branch

—

Project

<a href="/en/project/GA101%2F09%2F0867" target="_blank" >GA101/09/0867: Assessment of fatigue damage of thin-walled structures</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

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

—

Volume of the periodical

488-489

Issue of the periodical within the volume

1

Country of publishing house

CH - SWITZERLAND

Number of pages

4

Pages from-to

178-181

UT code for WoS article

000306531200044

EID of the result in the Scopus database

—