Ultrasound Nondestructive Evaluation
Computational Simulation of Ultrasound Measurements
- Analytical methods for elastic wave field propagation and scattering
- Short wavelength asymptotic analysis
- Boundary integral formulation: computational Boundary Element Method (BEM)
- Volume integral formulation: computational Volume Element Method (VEM)
Ultrasound Interaction with Complex Microstructure
- Volume integral formulation and VEM for propagation and scattering in:
- Single phase crystalline metal microstructures
- Multi-constituent microstructures (multi-phase metals, CMCs)
Ultrasound Propagation and Scattering in Composite Materials
- Ultrasound transmission in curved anisotropic laminates
- Ultrasound scatter and attenuation in laminate microstructures
Multi-Mode Dispersion Compensated Guided Wave Inspection
- High frequency guided wave inspection of structures
- Data collection and processing for removal of multi-mode dispersion effects
Ron Roberts
Senior Scientist
Adjunct Associate Professor, Aerospace Engineering
rroberts@iastate.edu
Funded Research Sponsors
- AFRL, NASA
- Pratt and Whitney, Honeywell, Rolls Royce, Boeing
Keywords
Ultrasound NDE, Ultrasound simulation, Microstructure, Composites, Guided Waves
Patents
- Patent No. 4987412 – “Method and Apparatus for the Simultaneous Display and Correlation of Independently Generated Images”
- Patent No. 6138512 – “Method and Apparatus for Determining Source Location of Energy Carried in Form of Propagation Waves through a Conduction Medium”
- Patent No. 6601451 – “System and Method to Provide Material Property Measurement Using Re-Entrant Ultrasound”
- Patent No. 7739899 – “Leak Detection Using Structure-Born Noise”