Publication detail

Residual stress in polyethylene pipes

PODUŠKA, J. HUTAŘ, P. KUČERA, J. FRANK, A. SADÍLEK, J. PINTER, G. NÁHLÍK, L.

Original Title

Residual stress in polyethylene pipes

Type

journal article in Web of Science

Language

English

Original Abstract

This paper deals with residual stress in polyethylene (PE) pipes as an important factor that influences their lifetime. Residual hoop stress distribution in a PE pipe was determined using a methodology previously carried out by the authors on polypropylene pipes. Axial residual stress magnitude was determined by comparison of experimental data and finite element modelling. Based on the obtained results, a new simplified methodology for determining the residual hoop stress is proposed. The method needs only one circular specimen made of pipe, but, unlike older methods, provides a more precise estimation of residual hoop stress distribution taking into account its exponential shape. Some older results from literature are recalculated using this method and residual hoop stress of various PE pipe grades and dimensions are then compared. To provide an idea of residual hoop stress influence on lifetime of a pipe, a lifetime estimation is carried out for the examined pipe.

Keywords

polyethylene pipe; residual stress; riing slitting method; lifetime estimation

Authors

PODUŠKA, J.; HUTAŘ, P.; KUČERA, J.; FRANK, A.; SADÍLEK, J.; PINTER, G.; NÁHLÍK, L.

Released

1. 9. 2016

Publisher

Elsevier

ISBN

0142-9418

Periodical

POLYMER TESTING

Year of study

54

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

288

Pages to

295

Pages count

8

URL

https://www.sciencedirect.com/science/article/pii/S0142941816304512

BibTex

@article{BUT127087,
  author="Jan {Poduška} and Pavel {Hutař} and Jaroslav {Kučera} and Andreas {Frank} and Jiří {Sadílek} and Gerald {Pinter} and Luboš {Náhlík}",
  title="Residual stress in polyethylene pipes",
  journal="POLYMER TESTING",
  year="2016",
  volume="54",
  number="1",
  pages="288--295",
  doi="10.1016/j.polymertesting.2016.07.017",
  issn="0142-9418",
  url="https://www.sciencedirect.com/science/article/pii/S0142941816304512"
}