Evaluation of the Metal Fatigue Solutions Electrochemical Fatigue Sensor System

Identifying fatigue cracks in bridges and other structures is a very difficult task. Even more difficult is identifying if something that looks like a fatigue crack is an actively growing crack - and one that could induce serious structural damage. In the early 1990's work was initiated to develop a nondestructive technique for identifying fatigue cracks in small, inaccessible aircraft parts. Initial efforts focused on the measurement of corrosion fatigue. The initial research on an nondestructive evaluation (NDE) technique based upon electrochemical principles quickly revealed that corrosion current could be measured with unusual precision. With this fundamental basis and a basic understanding of the fatigue cracking process, the initial development focused on developing a crack detection technique that was actually based on the detection of the growth of corrosion products. The resulting technology has a remarkable capability at detecting very small fatigue cracks that are actively growing and is known as the Electrochemical Fatigue Sensor (EFS). The goal with this work is to purchase and evaluate the EFS system such that, when necessary, the Iowa Department of Transportation (DOT) knows how, when, and where to deploy the system most effectively.


    • English


    • Status: Completed
    • Contract Numbers:


      Add 560

    • Sponsor Organizations:

      Iowa Department of Transportation

      800 Lincoln Way
      Ames, IA  United States  50010
    • Project Managers:

      Todsen, Michael

    • Performing Organizations:

      Iowa State University, Ames

      Institute for Transportation
      2711 South Loop Drive, Suite 4700
      Ames, Iowa  United States  50010-8664

      Iowa State University

      Bridge Engineering Center
      2711 South Loop Drive, Suite 4700
      Ames, Iowa  United States  50010-8664
    • Principal Investigators:

      Phares, Brent

    • Start Date: 20151201
    • Expected Completion Date: 20171130
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01580317
    • Record Type: Research project
    • Source Agency: Iowa Department of Transportation
    • Contract Numbers: RB12-016, Add 560
    • Files: RiP, STATEDOT
    • Created Date: Nov 2 2015 12:01PM