ESTIMATION OF WELD DEFECTS THROUGH ULTRASONIC TESTING

In Japan, ultrasonic inspection is finding increasing use for welded steel structures in the building construction industry. Though it has several advantages, its capabilities have not yet been thoroughly assessed because of insufficient experience with the method. Experimental investigations, mostly in the laboratory but including some field tests, were therefore carried out to assess the method's ability to identify the size of defects, and included the angle-beam testing of butt welds in splices containing artificial defects; also, flaw sizes estimated according to various specifications were compared with actual flaw sizes in test specimens. The parent material used was SM50, a low-alloy high-strength steel. The article gives an account of this work, with a detailed statistical analysis of the results. Several conclusions are drawn on the reliability of ultrasonic testing in identifying defect length and height, and comparisons are made between different ultrasonic techniques and between ultrasonic and X-ray examination.

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  • Corporate Authors:

    American Welding Society

    2501 NW 7th Street
    Miami, FL  USA  33125
  • Authors:
    • Kato, B
    • MORITA, K
    • Furuzawa, H
  • Publication Date: 1976-11

Media Info

  • Features: References;
  • Pagination: 8 p.
  • Serial:
    • Welding Journal
    • Volume: 55
    • Publisher: American Welding Society
    • ISSN: 0043-2296

Subject/Index Terms

Filing Info

  • Accession Number: 00163428
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: Oct 29 1977 12:00AM