Validation of Laser Shearography Testing for Fixed Foam Insulation Bonds

  • J. E. Engel
  • D. D. Burleigh
Part of the Review of Progress in Quantitative Nondestructive Evaluation book series


Electronic Laser Shearography is a relatively new Nondestructive Evaluation (NDE) technique that is used with excitation methods to measure differential displacements and subsequent strains at the surface of a material. Laser shearography was evaluated as an NDE technique for the inspection of adhesive bonds on fixed foam insulation for Atlas-Centaur cryogenic fuel tanks. A test program was conducted which evaluated the capability of electronic laser shearography to detect disbonds under field conditions on a full scale development test article. The test program validated laser shearography as a viable technique for the inspection of adhesive bonds in the test article configuration.


Test Article Acoustic Excitation Excitation Method Foam Insulation Moire Interferometry 
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Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • J. E. Engel
    • 1
  • D. D. Burleigh
    • 2
  1. 1.NDE/Quality EngineeringGeneral Dynamics Space Systems DivisionSan DiegoUSA
  2. 2.Materials and Process EngineeringGeneral Dynamics Space Systems DivisionSan DiegoUSA

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