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Toward field implementation of carbon nanotube-based composites for monitoring and repairing fatigue damaged steel structures

Authors: Shafique Ahmed (University of Delaware) , Erik Thostenson (University of Delaware) , Jennifer McConnell (University of Delaware) , Sagar Doshi (University of Delaware) , Thomas Schumacher (Portland State University)

  • Toward field implementation of carbon nanotube-based composites for monitoring and repairing fatigue damaged steel structures

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    Toward field implementation of carbon nanotube-based composites for monitoring and repairing fatigue damaged steel structures

    Authors: , , , ,

Abstract

Fatigue damage of steel structures is one of the major reasons for deficient infrastructure. Adhesively-bonded fiber reinforced polymer (FRP) materials are an excellent candidate for repairing these fatigue-damaged structures. However, one of the major drawbacks of this repair scheme is that its visual inspection is difficult. Our research group developed and experimentally evaluated a novel configuration of FPR sheets by embedding a carbon nanotube (CNT)-based sensing layer in the adhesive joint, allowing condition monitoring capabilities. We have also found that the CNT sensor can be employed individually to detect and continuously monitor a fatigue crack. For the field implementation of this innovative fatigue crack sensor, we have developed and evaluated a protective layer for the sensor and a low-cost and reliable data acquisition system.

How to Cite:

Ahmed, S., Thostenson, E., McConnell, J., Doshi, S. & Schumacher, T., (2019) “Toward field implementation of carbon nanotube-based composites for monitoring and repairing fatigue damaged steel structures”, Review of Progress in Quantitative Nondestructive Evaluation .

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Published on
03 Dec 2019
Peer Reviewed
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