RAPID CRACK-PROPAGATION IN PRESSURIZED PLASTIC PIPE .2. CRITICAL PRESSURES FOR POLYETHYLENE PIPE

YAYLA P., LEEVERS P.

ENGINEERING FRACTURE MECHANICS, vol.42, no.4, pp.675-674, 1992 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 42 Issue: 4
  • Publication Date: 1992
  • Doi Number: 10.1016/0013-7944(92)90049-k
  • Journal Name: ENGINEERING FRACTURE MECHANICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.675-674
  • Marmara University Affiliated: No

Abstract

A new small-scale test method has been developed for generating steady-state rapid crack propagation in plastic pipe. Using this method, a series of exploratory tests are used to investigate the variation in critical pressure (i.e. the threshold of crack self-arrest) with parameters which are seen to influence it in full-scale tests: temperature, pipe wall thickness, decompression properties of the pressurising medium, and external constraint. Scaling rules relating small- and full-scale results for different diameters are discussed using British Gas full-scale test data, and in the light of thickness effects measured in small-scale tests.