Publication detail

Effect of recycled material on failure by slow crack growth in multi-layer polyethylene pipes

TRÁVNÍČEK, L. PODUŠKA, J. MESSIHA, M. ARBEITER, F. PINTER, G. NÁHLÍK, L. HUTAŘ, P.

Original Title

Effect of recycled material on failure by slow crack growth in multi-layer polyethylene pipes

Type

journal article in Web of Science

Language

English

Original Abstract

Among polymer materials, high-density polyethylene (HDPE) is one of the most demanded polymers for packaging as well as in sectors with higher material requirements, such as the plastic pipe industry. The extensive use of HDPE means it is often present in municipal waste. Therefore, there is a high potential for reprocessing and exploring new applications for recycled HDPE, aiming for a circular economy. In the plastic pipe industry, recyclates have found practical use in non-pressure applications. However, the high structural and loading requirements do not allow using it for pressurized pipes yet. The presented study is focused on the possible utilization of recycled HDPE in pressurized pipes in the form of a layer in a multi-layer pipe with two protective layers made of virgin HDPE. The performance of the pipes is assessed based on numerical simulations, coupled with lifetime estimations. The lifetime assessment is based on linear elastic fracture mechanics using experimentally measured slow crack growth (SCG) rates in the virgin and recycled HDPE grades. Thanks to the numerical models, it was possible to describe damage by SCG of the multi-layer pipe as well as to find the dependency of the pipe performance on the thickness ratio and material properties of the layers.

Keywords

Slow crack growth (SCG); Recycled polyethylene; Multi-layer pipe; Lifetime estimation; High-density polyethylene (HDPE); PE100 grade

Authors

TRÁVNÍČEK, L.; PODUŠKA, J.; MESSIHA, M.; ARBEITER, F.; PINTER, G.; NÁHLÍK, L.; HUTAŘ, P.

Released

14. 6. 2023

Publisher

PERGAMON-ELSEVIER SCIENCE LTD

Location

OXFORD

ISBN

0013-7944

Periodical

Engineering Fracture Mechanics

Year of study

289

Number

1 September 2023

State

United Kingdom of Great Britain and Northern Ireland

Pages count

18

URL

https://www.sciencedirect.com/science/article/pii/S0013794423003818?via%3Dihub

BibTex

@article{BUT184961,
  author="Lukáš {Trávníček} and Jan {Poduška} and Mario {Messiha} and Florian {Arbeiter} and Gerald {Pinter} and Luboš {Náhlík} and Pavel {Hutař}",
  title="Effect of recycled material on failure by slow crack growth in multi-layer polyethylene pipes",
  journal="Engineering Fracture Mechanics",
  year="2023",
  volume="289",
  number="1 September 2023",
  pages="18",
  doi="10.1016/j.engfracmech.2023.109423",
  issn="0013-7944",
  url="https://www.sciencedirect.com/science/article/pii/S0013794423003818?via%3Dihub"
}