Gero, Brian Matthew III2014-03-142014-03-141997-08-28etd-82597-10168http://hdl.handle.net/10919/36997An acousto-ultrasonic approach is used to explore the damage development in tensile shear spot welds during fatigue loading. There is reasonable data to support the hypothesis that a decrease in an AU signal is indicative of the presence of an internal crack and could be used for monitoring and evaluation purposes.In CopyrightNDEAcousto-UltrasonicFatigueSpot WeldUltrasonicThesishttp://scholar.lib.vt.edu/theses/available/etd-82597-10168/