Detail publikace

Fracture Mechanics Model of a Weld Bead

ŠEVČÍK, M. HUTAŘ, P. KNÉSL, Z. NEZBEDOVÁ, E. LACH, R. GRELLMANN, W.

Originální název

Fracture Mechanics Model of a Weld Bead

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

In the case of large diameter HDPE and/or PP pipes the most usual joint is the butt weld. This paper focuses on fracture mechanics modeling of a weld bead. To this aim a stress concentrator created by connection between the weld bead and the pipes free surface is considered as a notch. In the first part of the contribution the connection of a weld bead and the pipes free surface is studied from the point of linear elastic fracture mechanics and the influence of high stress concentration in this region on crack initiation and propagation is discussed. In the second part the behavior of the weld bead under creep loading is studied. It is demonstrated that in the case of creep loading conditions the existence of stress concentrators caused by the weld bead has no negative influence on the life time of welded pipes.

Klíčová slova

creep; notch; stress concentration; stress triaxiality; polymer weld

Autoři

ŠEVČÍK, M.; HUTAŘ, P.; KNÉSL, Z.; NEZBEDOVÁ, E.; LACH, R.; GRELLMANN, W.

Rok RIV

2011

Vydáno

28. 6. 2011

Místo

Merseburg

ISBN

978-3-86829-400-2

Kniha

13. Tagung Problemseminar Deformation und Bruchverhalten von Kunstoffen

Strany od

570

Strany do

573

Strany počet

598

BibTex

@inproceedings{BUT88375,
  author="Martin {Ševčík} and Pavel {Hutař} and Zdeněk {Knésl} and Eva {Nezbedová} and Ralf {Lach} and Wolfgang {Grellmann}",
  title="Fracture Mechanics Model of a Weld Bead",
  booktitle="13. Tagung Problemseminar Deformation und Bruchverhalten von Kunstoffen",
  year="2011",
  pages="570--573",
  address="Merseburg",
  isbn="978-3-86829-400-2"
}