Detail publikace

Crack growth modeling in a specimen with polymer weld

ŠEVČÍK, M. HUTAŘ, P. NÁHLÍK, L. LACH, R. KNÉSL, Z. GRELLMANN, W.

Originální název

Crack growth modeling in a specimen with polymer weld

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

Secure and cost effective joining methods are key points for practical applications of plastic pipelines. The morphology and material structure of welded joints are complicated in comparison with the base pipe material. The formation of the weld is highly dependent on both thermal history and stress state. Consequently, the material parameters characterizing the weld joint and corresponding heated zone influence the reliability and safety of the welded pipe system as a whole. In the contribution a welded polymer-polymer butt joint is considered and its possible damage caused by slow crack growing in the weld zone is numerically analyzed. The numerical model takes into account the geometry of the bead and changes in material properties inside the weld zone. The results obtained from welded specimens are compared with those for a smooth specimen from the base material. The conclusions described in the paper can be used for a better transfer of fracture mechanics characteristics between laboratory specimens and real pipes.

Klíčová slova

polymer weld; crack propagation; graded structure; fracture mechanics

Autoři

ŠEVČÍK, M.; HUTAŘ, P.; NÁHLÍK, L.; LACH, R.; KNÉSL, Z.; GRELLMANN, W.

Rok RIV

2012

Vydáno

2. 1. 2012

Nakladatel

Trans Tech Publications

Místo

Switzerland

ISSN

1013-9826

Periodikum

Key Engineering Materials (print)

Ročník

488-489

Číslo

-

Stát

Švýcarská konfederace

Strany od

158

Strany do

161

Strany počet

4

BibTex

@article{BUT74940,
  author="Martin {Ševčík} and Pavel {Hutař} and Luboš {Náhlík} and Ralf {Lach} and Zdeněk {Knésl} and Wolfgang {Grellmann}",
  title="Crack growth modeling in a specimen with polymer weld",
  journal="Key Engineering Materials (print)",
  year="2012",
  volume="488-489",
  number="-",
  pages="158--161",
  issn="1013-9826"
}