Nina E. Sweeney
Papers
4
Total Citations
121
H-Index
4
About
Nina E. Sweeney is a leading researcher in advanced manufacturing and non-destructive testing (NDT), with a primary focus on the in-process inspection of multi-pass welding. Her work addresses a critical bottleneck in heavy industries: the costly and time-consuming discovery of weld defects only after all layers have been deposited. Sweeney’s major contributions lie in developing and calibrating phased array ultrasound systems—such as the roller probe—that enable real-time, interpass defect detection. This allows for immediate repair, reducing rework, lead times, and material waste. Her highly cited papers, including "A Phased Array Ultrasound Roller Probe for Automated in-Process/Interpass Inspection of Multipass Welds" (47 citations) and "In-process calibration of a non-destructive testing system" (39 citations), have shaped the field of in-process quality control. She has also investigated the effect of residual stress on hydrogen cracking, linking NDT data to weld integrity. More recently, Sweeney has expanded into ultrasonic-driven adaptive control for robotic plasma arc cutting, demonstrating her commitment to automating and improving the entire welding preparation workflow. Her work is foundational for the future of smart, self-correcting manufacturing.
Research Focus
Key Achievements
Top Papers
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