Publication detail
Crack behavior in a welded polyolefin pipe
ŠEVČÍK, M. HUTAŘ, P. NÁHLÍK, L.
Czech title
Lomové chování svařovaných polyolefinových trubek
English title
Crack behavior in a welded polyolefin pipe
Type
journal article - other
Language
en
Original abstract
A three-dimensional model of a pressured polymer pipe with a weld is created in order to estimate the stress intensity factor for a crack located inside the weld. A comparison with values obtained for an edge-cracked tension specimen, usually employed for an experimental determination of weld properties, is performed. The difference between the stress intensity factor in a homogeneous pipe and the results taking into account the changes in material properties inside the weld is presented. A conservative and easily applicable relationship for calculating the stress intensity factor in a pipe weld is proposed.
Czech abstract
V práci je studován vliv materiálové nehomogenity, způsobené svařováním polyolefinových potrubí, na chování trhliny, iniciované uprostřed svaru. Ukazuje se, že přítomnost materiálové nehomogenity ve svaru výrazně zvyšuje hodnotu součinitele intenzity napětí a tím dojde ke značné redukci životnosti svarového spoje.
English abstract
A three-dimensional model of a pressured polymer pipe with a weld is created in order to estimate the stress intensity factor for a crack located inside the weld. A comparison with values obtained for an edge-cracked tension specimen, usually employed for an experimental determination of weld properties, is performed. The difference between the stress intensity factor in a homogeneous pipe and the results taking into account the changes in material properties inside the weld is presented. A conservative and easily applicable relationship for calculating the stress intensity factor in a pipe weld is proposed.
Keywords in Czech
lomová mechanika; polyolefinová trubka; polymerní svar; součinitel intenzity napětí; gradientní materiál
Keywords in English
fracture mechanics, polyolefin pipe, polymer weld, stress intensity factor, graded structure
RIV year
2011
Released
21.07.2011
Publisher
Springer
ISSN
0191-5665
Journal
MECHANICS OF COMPOSITE MATERIALS
Volume
47
Number
3
Pages from–to
263–270
Pages count
8
BIBTEX
@article{BUT72899,
author="Martin {Ševčík} and Pavel {Hutař} and Luboš {Náhlík},
title="Crack behavior in a welded polyolefin pipe",
journal="MECHANICS OF COMPOSITE MATERIALS",
year="2011",
volume="47",
number="3",
month="July",
pages="263--270",
publisher="Springer",
issn="0191-5665"
}