The Effect of Polymer Pipe Weld Geometry on Creep Lifetime

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F11%3A00353503" target="_blank" >RIV/68081723:_____/11:00353503 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26210/11:PU90046

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 Polymer Pipe Weld Geometry on Creep Lifetime

Original language description

In the case of large diameter polyethylene (PE) and polypropylene (PP) pipes the most usual joint is the butt weld. This paper focuses on the influence of a weld bead on the service life of welded pipes from a fracture mechanics perspective. To this aimthe stress concentrator created by the connection between the weld bead and the pipe?s free surface is modelled as a notch. Global parameters defining properties of stress and strain field in the notch region are calculated for materials with a prevailing Norton-type creep. It is demonstrated that in the case of creep loading conditions and ductile failure mode the existence of such stress concentrators has no negative influence on the lifetime of pipes.

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

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2011

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

465

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

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EID of the result in the Scopus database

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