Influence of Different Welding Conditions of Polyolefin Pipes on Creep Crack Growth
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F17%3A00506749" target="_blank" >RIV/68081723:_____/17:00506749 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/chapter/10.1007%2F978-3-319-41879-7_16" target="_blank" >https://link.springer.com/chapter/10.1007%2F978-3-319-41879-7_16</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/978-3-319-41879-7_16" target="_blank" >10.1007/978-3-319-41879-7_16</a>
Alternative languages
Result language
angličtina
Original language name
Influence of Different Welding Conditions of Polyolefin Pipes on Creep Crack Growth
Original language description
The main aim of the paper is to study the influence of both material inhomogeneity and weld bead geometry on crack propagation in welded polyolefin pipes. Lifetime of three pipes welded by different welding procedures is numerically estimated. Experimentally observed shapes of weld bead and change of material properties inside the welded region (the change of Young's modulus) is implemented into the numerical model of welded pipes. Circumferential crack is of interest during the crack propagation through the pipe wall and the stress intensity factor is evaluated. It is shown that the deformation of welded region plays an important role whatever it is caused by, either the inhomogeneous distribution of Young's modulus or the amount of material in that region. The change of weld bead notch radius is not proved to be important for slow crack growth. It is shown that non-optimal welds can significantly decrease lifetime of pipe systems. The results of this research can be used for lifetime estimation and prediction of creep crack growth and further optimisation of welding conditions and butt weld technology.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20306 - Audio engineering, reliability analysis
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
DEFORMATION AND FRACTURE BEHAVIOUR OF POLYMER MATERIALS
ISSN
0933-033X
e-ISSN
—
Volume of the periodical
247
Issue of the periodical within the volume
1
Country of publishing house
DE - GERMANY
Number of pages
13
Pages from-to
229-241
UT code for WoS article
000430004400017
EID of the result in the Scopus database
2-s2.0-85024495963