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Ultrasonic Nondestructive Evaluation (NDE) of Polycrystalline Materials

Showmic IslamProfile Picture of Showmic Islam

Research Scientist II
sislam@iastate.edu
(515) 294-7706

Wave Propagation in Complex Polycrystalline Materials

  • Modeling of ultrasonic wave in microstructures with twins, distribution of grain sizes
  • Numerical modeling of wave propagation in two-phase materials
  • Synthetic RVEs of different tessellation methods
  • Micro-textured region (MTRs)

Ultrasonic NDE Techniques

  • Pulse echo, Pitch Catch
  • Longitudinal, Shear and surface Wave

Materials Characterization

  • Microstructure, Grain statistics, Morphology
  • Phase fraction, porosity

Code Development

  • Container for Distributed and High Performance Computing
  • Near surface defect detection in railway bearing parts using surface wave

 

Keywords

  • Ultrasonic NDE; Materials Characterization; Synthetic RVE, HPC, Distributed Computing

Expertise

  • Ultrasonic scattering in polycrystalline materials
  • High Performance Computing
  • High Throughput Computing
Top left - two phase synthetics from EBSD Top right - grain morphology bottom - ultrasonic attenuation from a distribution of grains