In order to apply acoustic emission technology to safety inspections of pressure vessels and piping, basic acoustic emission data have been obtained from heavy section flawed steel specimens during tensile tests. When the emission rate is plotted as a function of applied stress or the corresponding value of strain, characteristically, the acoustic emission rate has a peak prior to the elastic limit. It was also found that the rate of change of emission with respect to strain depends on the test temperatures. The temperature dependence of acoustic emission is investigated by a theoretical model based on the theory of dislocations. /Author/

  • Availability:
  • Supplemental Notes:
    • Research sponsored by the Oak Ridge National Laboratory.
  • Corporate Authors:

    American Society for Nondestructive Testing

    914 Chicago Avenue
    Evanston, IL  United States  60202
  • Authors:
    • Ying, S P
    • GRIGORY, S C
  • Publication Date: 1975-2

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: p. 30-37
  • Serial:
    • Materials Evaluation
    • Volume: 33
    • Issue Number: 2
    • Publisher: American Society for Nondestructive Testing
    • ISSN: 0025-5327

Subject/Index Terms

Filing Info

  • Accession Number: 00083345
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 26 1975 12:00AM