USING ACOUSTIC EMISSION TECHNOLOGY TO PREDICT STRUCTURAL FAILURE

The combination of acoustic emission and linear fracture mechanics can provide quantitative information regarding failure. This report has shown that, for certain situations, acoustic emission techniques can be used to accurately estimate the stress intensity factor K at a growing crack, and therefore provide predictive information regarding structural failure. The importance of locating defects in large complicated structures, such as bridges and power plant pressure vessels, was also stressed, and a multiple-channel computer system was described for accomplishing this function. The ability to locate a growing defect, coupled with the ability to quantify the growth rates with fixed sensors (no scanning required) places acoustic emission in the forefront of new techniques for the prevention of structural failures.

  • Corporate Authors:

    American Society for Metals

    Metals Park, OH  United States  44073
  • Authors:
    • Dunegan, H L
  • Publication Date: 1975-2

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00082820
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 26 1975 12:00AM