Ultrasonic imaging of electrofusion welded polyethylene pipes employed in utilities industry

Arjun Prakash TK, Richard O'Leary, Anthony Gachagan, Kevin Ross, Edward Clutton

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

1 Citation (Scopus)
192 Downloads (Pure)

Abstract

Electrofusion welding (EFW) is a widely used technique for joining polyethylene pipes in the oil, gas and water industry. Like many welding and joining methods, the joints created by EFW can exhibit a range of flaw types that can be attributed to process variables such as: poor preparation of the parent material, contamination of the weld surfaces prior to welding and operator and/or equipment failure during the welding process. This paper describes ultrasonic testing using 128-channel linear array with a DYNARAY system to acquire data from a range of joints created using EFW. The samples were created in the laboratory with a range of defects that represent those commonly observed in the field. The samples were subsequently destructively tested using tensile testing of the coupling-pipe interface. Good corroboration was achieved between the observed weld quality from the ultrasonic data and the weld strength determined by the destructive testing.
Original languageEnglish
Title of host publicationProceedings of BINDT 2012
Place of PublicationRed Hook
Number of pages10
Publication statusPublished - 4 Sep 2012
EventBINDT 51st Annual Conference - Northampton, Daventry, United Kingdom
Duration: 4 Sep 20126 Sep 2012

Conference

ConferenceBINDT 51st Annual Conference
CountryUnited Kingdom
CityDaventry
Period4/09/126/09/12

Keywords

  • electrofusion welding
  • polyethylene pipes
  • flaw types
  • joints
  • ultrasonic testing
  • tensile testing
  • coupling-pipe interface

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