Publication detail
The Effect of Specimen Size on the Determination of Residual Stress in Polymer Pipe Wall
PODUŠKA, J. KUČERA, J. HUTAŘ, P. ŠEVČÍK, M. KŘIVÁNEK, J. SADÍLEK, J. NÁHLÍK, L.
English title
The Effect of Specimen Size on the Determination of Residual Stress in Polymer Pipe Wall
Type
Paper in proceedings (conference paper)
Language
en
Original abstract
As a result of the production process, there are axial and tangential residual stresses present in pressure pipes made of polymer materials such as polyethylene or polypropylene. The residual stress magnitude and distribution have a significant influence on the pipe lifetime. In this contribution the results from experiments focused on determining the tangential residual stress distribution in the walls of polypropylene pipes of different dimensions are compared. The experimental method used involves measuring the deformation of ring shaped specimens that were slit in the axial direction. Measured deformation of the ring specimen is a result of the tangential and axial stress superposition. However, the effect of the axial residual stress depends on the specimen axial dimension and tangential residual stress estimated basing on experimental data should be corrected according to axial dimension of the specimen used. The correction suggested in this article is determined based on three-dimensional FEM simulations of the experiment.
Keywords in English
polypropylene pipes, residual stress, ring deformation methodology
Released
2015-01-30
Publisher
TTP
Location
Switzerland
ISBN
978-3-03835-235-8
ISSN
1013-9826
Book
Advances in Fracture and Damage Mechanics XIII
Journal
Key Engineering Materials (print)
Volume
2015
Number
627
Pages from–to
141–144
Pages count
4
BIBTEX
@inproceedings{BUT110121,
author="Jan {Poduška} and Jaroslav {Kučera} and Pavel {Hutař} and Martin {Ševčík} and Josef {Křivánek} and Jiří {Sadílek} and Luboš {Náhlík}",
title="The Effect of Specimen Size on the Determination of Residual Stress in Polymer Pipe Wall",
booktitle="Advances in Fracture and Damage Mechanics XIII",
year="2015",
series="Key Engineering Materials",
journal="Key Engineering Materials (print)",
volume="2015",
number="627",
pages="141--144",
publisher="TTP",
address="Switzerland",
doi="10.4028/www.scientific.net/KEM.627.141",
isbn="978-3-03835-235-8",
issn="1013-9826"
}