Crack propagation in a welded polyolefin pipe

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F12%3A00385081" target="_blank" >RIV/68081723:_____/12:00385081 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1108/17579861211235174" target="_blank" >http://dx.doi.org/10.1108/17579861211235174</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1108/17579861211235174" target="_blank" >10.1108/17579861211235174</a>

Result language

angličtina

Original language name

Crack propagation in a welded polyolefin pipe

Original language description

The purpose of this paper is to study the effect of the material inhomogeneity on crack behavior initiated both axially and circumferentially in or near the butt weld and to discuss consequences on residual lifetime of the welded structure. A three-dimensional numerical model of pipe weld with smooth and continuous change of material properties has been used to study the fracture behavior of the cracked pipe structure. The stress intensity factor was considered as a parameter controlling the fracture behavior. The semi-elliptical shape of the crack front was estimated under assumption of constant stress intensity factor along the crack front. According to the results obtained in the paper the following conclusions were deduced. First, the most criticallocation of the crack is in the middle of the inhomogeneous region (weld center) regardless of the crack orientation. The stress intensity factor is substantially higher than in the case of a crack located in the homogenous pipe. Second,

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

<a href="/en/project/GC101%2F09%2FJ027" target="_blank" >GC101/09/J027: Correlation between structural changes, damage evolution and crack propagation behaviour of welded thermoplastics components</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2012

Confidentiality

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

Name of the periodical

International Journal of Structural Integrity

ISSN

1757-9864

e-ISSN

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Volume of the periodical

3

Issue of the periodical within the volume

2

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

148

UT code for WoS article

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EID of the result in the Scopus database

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