STUDY OF FATIGUE CRACKS IN STEEL BRIDGE COMPONENTS USING ACOUSTIC EMISSIONS

Preliminary results of an acoustic emission (AE) study of fatigue cracks in A-36 steel specimens are presented. The fatigue propagation of cracks in three steel beams were monitored with the use of a six channel acoustic emissions system. Each specimen was subjected to three-point bending with cyclic loading. Based on these experimental results, plots were established of crack growth rate and acoustic counts versus change in stress intensity factor. Preliminary field monitorings of fatigue cracks in an actual bridge girder have been conducted. The field monitorings results have shown that the location method being used is effective.

  • Corporate Authors:

    Technomic Publishing Company, Incorporated

    851 New Holland Avenue, Box 3535
    Lancaster, PA  United States  17604
  • Authors:
    • Chen, H L
    • Fultineer Jr, R D
  • Conference:
  • Publication Date: 1996

Language

  • English

Media Info

  • Features: Figures; References;
  • Pagination: p. 317-322

Subject/Index Terms

Filing Info

  • Accession Number: 00725897
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 16 1996 12:00AM