UNDERWATER NDT-PROBLEMS AND SOLUTIONS

The observation is often made that approximately 98% of cracking defects found in offshore structures have been found visually. As visual techniques can only find visible defects, today's inspection results cast doubt on assessments of structures' integrity. Two separate trials of underwater nondestructive testing (NDT) in Scotland have also been able to document considerable inadequacy of techniques and procedures, equipment, and personnel used at that time. Thus the paper argues that present capabilities of NDT techniques as applied underwater are inadequate. Much of the reason can be attributed to false premise and logics. Some contributory factors are identified, recent knowledge presented, and solutions proposed.

• Supplemental Notes:
  • 9th World Conference on Non-Destructive Testing, Melbourne, 19-23 November 1979.
• Corporate Authors:

  World Conference on Non-Destructive Testing

  Parkville, Victoria,   Australia 
• Authors:
  • Allen, K P
• Publication Date: 1979

Media Info

• Pagination: 10 p.

Subject/Index Terms

• TRT Terms: Cracking; Defects; Flaw detection; Inspection; Nondestructive tests; Offshore platforms; Structural deterioration and defects; Structures
• Uncontrolled Terms: Crack detection; Underwater inspection
• Old TRIS Terms: Offshore platform inspection
• Subject Areas: Bridges and other structures; Marine Transportation; Materials;

Filing Info

• Accession Number: 00331604
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: Paper 2A-13
• Files: TRIS
• Created Date: Jun 12 1981 12:00AM