Scaling Factors and Self-Sensing in Composite Repairs of Corrosion Defects

This project seeks to resolve two fundamental questions regarding the composite repair approach: do scaling effects have an impact on repair performance? And how can an operator effectively inspect these repairs during the design lifespan? The first question will be answered through a fatigue test program that will compare the performance of patch-type composite repairs on small pipeline specimens (6 in. nominal diameter) to the performance of the same repair on a large diameter specimen (60 in. nominal diameter). The testing will allow for a definitive statement on the scaling of small-scale qualification test results to large diameter repairs. The second question will be answered through the development and testing of a resistive-based, self-sensing composite system. The material will allow for the monitoring of the composite substrate bond using small, low-voltage electronics. Wireless communication for either ground-based or in-line inspection tools will be explored and validated. Graduate students will form an integral part of the research team at all stages and will work closely with the principle investigator (PI) and the industry partners that have committed time and materials to this research program.


  • English


  • Status: Active
  • Funding: $99635
  • Contract Numbers:


  • Sponsor Organizations:

    Pipeline and Hazardous Materials Safety Administration

    U.S. Department of Transportation
    East Building, 2nd Floor 1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Project Managers:

    Kieba, Max

  • Performing Organizations:

    University of Tulsa

    800 S Tucker Drive
    Tulsa, OK  United States  74104-9700
  • Start Date: 20131001
  • Expected Completion Date: 20151231
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01578086
  • Record Type: Research project
  • Source Agency: Department of Transportation
  • Contract Numbers: DTPH56-13-H-CAAP02
  • Files: RiP, USDOT
  • Created Date: Oct 9 2015 12:40PM