Protocols and Criteria for Acoustic Emission Monitoring of Fracture-Critical Steel Bridges

Status:  Complete
Report Date:  06/30/2015


Researchers tested and optimized an acoustic emission monitoring system to sense cracking in fracture-critical steel bridges by using it to collect data on the Cedar Avenue Bridge in Burnsville, Minnesota. Results showed that although processing acoustic emission data is a complex task, acoustic emission systems hold promise for identifying fractures in steel bridges, including small cracks.

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