Investigation Team: Bob Thomas, Skip Favro, Xiaoyan Han - Wayne State University

Industry Partners: FAA Certification Engineers and Aviation Safety Inspectors

Objectives:

  • To develop the new technology of Sonic Infrared Imaging for use in aircraft inspection
  • To explore potential applications of Sonic IR for NDI of aircraft structures

  • To design a prototype Sonic IR Inspection System that is specifically adapted for NDI of aircraft structures

  • To initiate technology transfer

Approach:

  • Study the limits of detectability of cracks in different structures and optimize sonic transduction including different methodologies for coupling the sound to various aircraft structures

  • Evaluate signal processing methodologies for weak signals and/or small cracks including algorithms for thresholding and automation of defect recognition
  • Perform laboratory testing on representative specimens and parts removed from aircraft and complete field evaluation at AANC

Sonic infrared imaging has the potential for wide application as a technique that is full-field and capable of reliable crack detection.

Products:

  • Design of a prototype system and plan for technology transfer

Links:

 

Copyright © 2002

For more information about CASR please contact:
Lisa Brasche
Iowa State University
casr@cnde.iastate.edu