Detail publikačního výsledku

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.

Originální název

The Effect of Specimen Size on the Determination of Residual Stress in Polymer Pipe Wall

Anglický název

The Effect of Specimen Size on the Determination of Residual Stress in Polymer Pipe Wall

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

polypropylene pipes, residual stress, ring deformation methodology

Klíčová slova v angličtině

polypropylene pipes, residual stress, ring deformation methodology

Autoři

PODUŠKA, J.; KUČERA, J.; HUTAŘ, P.; ŠEVČÍK, M.; KŘIVÁNEK, J.; SADÍLEK, J.; NÁHLÍK, L.

Rok RIV

2016

Vydáno

30.01.2015

Nakladatel

TTP

Místo

Switzerland

ISBN

978-3-03835-235-8

Kniha

Advances in Fracture and Damage Mechanics XIII

Edice

Key Engineering Materials

ISSN

1013-9826

Periodikum

Key Engineering Materials (print)

Svazek

2015

Číslo

627

Stát

Švýcarská konfederace

Strany od

141

Strany do

144

Strany počet

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"
}