IMPLANTING FLAWS FOR NDT VALIDATION

Nondestructive testing (NDT) is often used to evaluate the condition of structural materials used in applications such as beams, columns, decks and a variety of other highway and bridge components. However, NDT is often operator dependent and too many times the operator lacks the experience of evaluating real flaws in "hard to inspect" areas of the component. The solution seems to suggest a full-scale mockup of the critical area of the component. The technology now exists to implant a variety of "real flaws" that will have a known size and location. The NDT operator can now develop accurate techniques and procedures for both the detection and sizing of flaws, even when the flaws are coincident with confusing geometric conditions. This paper will provide a detailed discussion of the current methods used to implant flaws in typical structural materials. The emphasis will be on the actual flaw making procedures and the related tolerances for location and size. Flaw types that are typically implanted include fatigue cracks, slag inclusions, porosity, lack of penetration, lack of fusion, corrosion/erosion, etc.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/1566769493
• Supplemental Notes:
  • This entry in the TRIS database is made from the hardback copy of the conference proceedings, which are also available on CD-ROM.
• Corporate Authors:

  Technomic Publishing Company, Incorporated

  851 New Holland Avenue, Box 3535
  Lancaster, PA  United States  17604
• Authors:
  • Pherigo, G L
  • Pherigo, A L
• Conference:
  • Structural Materials Technology IV - An NDT Conference
  • Location: Atlantic City, New Jersey
  • Date: 2000-2-28 to 2000-3-3
• Publication Date: 2000

Language

• English

Media Info

• Features: Figures; Tables;
• Pagination: p. 323-328

Subject/Index Terms

• TRT Terms: Beams; Bridge decks; Bridges; Columns; Components; Corrosion; Cracking; Fatigue (Mechanics); Flaw detection; Nondestructive tests; Porosity; Validation
• Uncontrolled Terms: Flaw implanting
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00793143
• Record Type: Publication
• ISBN: 1566769493
• Files: TRIS
• Created Date: May 8 2000 12:00AM