John C. Aldrin, PhD
    Engineering Consultant

 






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Publications (Journal and Conference Papers)
 

 



 

Presentations
 

  • “Method for Crack Characterization with Noise Invariance for Eddy Current Inspection Of Fastener Sites”, Review of Progress in QNDE, Brunswick, Maine, August 2005.
  • “Spiral Creeping Waves in Ultrasonic Angled-Beam Shear Wave Inspection of Fastener Holes In Multilayer Structures”, Review of Progress in QNDE, Brunswick, Maine, August 2005.
  • “Cost Benefit Analysis Incorporating Probabilistic Risk Assessment For Structural Health Monitoring”, Review of Progress in QNDE, Brunswick, Maine, August 2005.
  • “Methodology Using Inverse Methods for Pit Characterization in Multilayer Structures”, Review of Progress in QNDE, Brunswick, Maine, August 2005.
  • “Overview of Model-based POD Studies”, Model-Assisted POD Working Group meeting, Palm Springs, CA, February 2005.
  • “Model-based Signal Enhancement of Ultrasonic and Eddy Current Data”, ASNT 2004 Fall Conference, Las Vegas, NV, November 2004.
  • “Advanced Echo-Dynamic Measures for the Characterization of Multiple Ultrasonic Signals in Aircraft Structures”, 16th World Conference on Nondestructive Testing, Montreal, Canada, August 2004.
  • “Strategy and Software Framework for the Integration of QNDE and Product Life Management Design”, Review of Progress in QNDE, Golden, Colorado, July 2004.
  • “Automated Signal Classification (ASC) in NDE and POD Evaluation”, Workshop on Probability of Detection (POD) Evaluation, University of Dayton Research Institute, Dayton, Ohio, March 2004.
  • “Enhanced Nondestructive Evaluation Technique for Crack Detection of C-130 Beam Cap Holes”, Aging Aircraft Conference, New Orleans, Louisiana, September 2003.
  • “Ultrasonic Detection of Cracks in a Complex Aircraft Structure Using a Local Correlation Method for Signals from a Moving Transducer”, Review of Progress in QNDE, Green Bay, Wisconsin, July 2003
  • “Models and Methodology for the Characterization of Surface-Breaking Cracks Using an Ultrasonic Near-Field Scattering Measurement”, Review of Progress in QNDE, Green Bay, Wisconsin, July 2003.
  • “Models for Crack Detection in a Cylindrical Hole Containing an Elastic Layer and a Fluid-Filled Cylindrical Hole”, Review of Progress in QNDE, Bellingham, WA, July 2002.
  • “Crack Detection for Aircraft Holes with Limited Accessibility Containing Fasteners and Sealant,” Review of Progress in QNDE, Bellingham, WA, July 2002.
  • “The Role of Optimization in Addressing NDE Challenges,” AeorMat 2002, Orlando, FL, June, 2002.
  • “Automated Signal Classification Development Environment for Nondestructive Evaluation,” ASNT Spring Conference, Portland, OR, March, 2002.
  • “Model and Methodology for Crack Detection on a Cylindrical Hole Containing an Elastic Insert,” Review of Progress in QNDE, Brunswick, ME, August, 2001.
  • “Refined Detection of Cracks in Weep Holes Using Spatial Signal Variation,” Review of Progress in QNDE, Ames, IA, July, 2000.
  • “Detection of Cracks in Weep Holes Using Neural Networks,” 3rd Joint DOD/FAA/NASA Conference on Aging Aircraft, Albuquerque, NM, September, 1999.
  • “Detection of Cracks in Weep Holes Using Neural Networks,” Review of Progress in QNDE, Montréal, Québec, Canada, July, 1999.
  • “Use of the Boundary Element Method for Modeling the Detection of Cracks in Weep Holes,” Mechanics Club – Northwestern University,  Evanston, IL, June, 1999.
  • “Investigation of Passive and Adaptive Passive Dynamic Absorbers Applied to an Automatic Washer Suspension Design,” Smart Structures and Materials: Passive Damping and Isolation, San Diego, CA, March, 1996.


 



 

Dissertation
 

Models and Classification Procedures for Ultrasonic Inspection of Holes for Fatigue Cracks - (Complete Dissertation is 2.5 Mb)
(Major Proffessor -  J.D. Achenbach)


 

This page was last updated on October 24, 2005 by John C. Aldrin ( aldrin@computationaltools.com )