THE INFLUENCE OF LACK OF PENETRATION ON THE FRACTURE RESISTANCE OF STEEL WELDMENTS

This paper describes preliminary results obtained from a study of the fracture resistance of weldments containing lack of penetration defects. The fracture toughness parameters, crack opening displacement and j-contour integral were determined at the onset of cracking from tests on single edge notched specimens tested in three-point bending. Results showed that the fracture resistance of defective weldments made by a gas-shielded arc process (gma) was greater than that of welds made using manual covered electrodes (mma). This difference was found to decrease as the proportion of lack of penetration increased. It can be inferred that, at levels of lack of penetration typically encountered in fabrication practice, the tolerance of gma welds would be about twice that of mma welds. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/858411679
• Supplemental Notes:
  • The Second Australian Conference on Engineering Materials, held at Sydney, July 6-8, 1981.
• Corporate Authors:

  University of New South Wales

  Gate 9, High Street
  Kensington, New South Wales  Australia  2052
• Authors:
  • Byaruhanga, J K
  • YEOMANS, S R
  • Wheatley, J M
• Conference:
  • The Second Australian Conference on Engineering Materials, held at Sydney, July 6-8, 1981.
• Publication Date: 1981

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 437-446

Subject/Index Terms

• TRT Terms: Bending; Conferences; Constrictions; Cracking; Defects; Dislocation (Geology); Electric arc welding; Engineering tolerance; Failure; Fracture mechanics; Pendulum tests; Steel structures; Strength of materials; Test procedures; Toughness; Welding; Welds
• Uncontrolled Terms: Fracture; Weld defects
• Old TRIS Terms: Tolerances
• ITRD Terms: 8525: Conference; 5211: Cracking; 5520: Failure; 6285: Penetration; 5544: Strength (mater); 6288: Test method; 3852: Welding
• Subject Areas: Geotechnology; Highways; Materials; I34: Steels and Metals;

Filing Info

• Accession Number: 00348587
• Record Type: Publication
• Source Agency: ARRB
• ISBN: 85841 167 9
• Files: ITRD, TRIS, ATRI
• Created Date: Mar 30 1982 12:00AM