Ultrasonic Methods for Nondestructived Evaluation (NDE)
Joseph Turner
CNDE Assoc. Director
Kirby Gray (Battelle) Chair in Engineering
Professor
turner25@iastate.edu
(515) 294-2377
Comprehensive Models of Ultrasound Interactions with Material Microstructure
- Scattering models based on digital synthetics from DREAM.3D and other software
- Analytical models that include all levels of multiple scattering
- Models of scattering from microtexture regions (MTRs)
Experimental Ultrasonics
- Aerospace applications for Ti64 and other alloys
- Railroad applications for bearings, wheels, and rail
- Metal additive manufacturing including in situ and ex situ measurements
Microstructure Characterization
- Characterization of grain size, grain elongation, grain size distribution
- Role of microstructure for model assisted probability of detection (MAPOD)
- Statistics associated with defect detection
Resonant Ultrasound Spectroscopy (RUS) for Hybrid Metal Additive Manufacturing (AM)
- Quantification of residual stress in peened layers within metal AM samples
- Computational models for RUS analysis
- Machining learning for analysis of RUS data
