Fatigue Testing of Brass Breakaway Couplings

A concrete base will be attached to the strong wall located in NSEL in order to determine the stress concentration factor at the bottom of the notch on the machined brass couplers. The notched brass couplers will be placed in a 50 kip servohydraulic testing frame to be loaded to given stress levels to determine fatigue life. The fracture surface of each coupler will be examined using low magnification (10x) microscopy in order to develop a correlation between fatigue zone and brittle fracture zone as a function of stress level and fatigue life.


    • English


    • Status: Completed
    • Funding: $85000.00
    • Contract Numbers:


    • Sponsor Organizations:

      Illinois Department of Transportation

      2300 S. Dirksen Parkway
      Springfield, IL  United States  62764
    • Performing Organizations:

      University of Illinois, Urbana-Champaign

      1105 Newmark Civil Engineering Lab, 205 North Matthews Avenue
      Urbana, IL  United States  61801
    • Principal Investigators:

      Lawrence, Fred

      Banas, Grzegorz

    • Start Date: 20090901
    • Expected Completion Date: 0
    • Actual Completion Date: 20101231
    • Source Data: RiP Project 24790

    Subject/Index Terms

    Filing Info

    • Accession Number: 01480036
    • Record Type: Research project
    • Source Agency: Illinois Department of Transportation
    • Contract Numbers: R27-80
    • Files: RiP
    • Created Date: Apr 27 2013 1:02AM