Quantitative Acoustic Emission Monitoring of Fatigue Cracks in Fracture Critical Steel Bridges

The objective of this research is to evaluate quantitative acoustic emission (AE) methods for monitoring of fatigue crack detection, propagation, and retrofitting in steel bridges. Anticipated outcomes include recommendations on sensor locations, effective analysis methods to be used, and how to interpret the obtained data to ensure informed decisions can be made by bridge owners. Laboratory testing and data analysis will develop the methods to the point where they are ready to be tested in a realistic full-scale scenario or in the field.