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Tap Test: Evolution of an Old Technique

Fundamental to our experience with bonds is the tap test that so many use in their daily lives. In this Back to Basics, the authors review for the physics of how the tap test works, how technology can improve its capabilities for NDT and how it measures up against other techniques.

References
Adams, R.D., A.M. Allen and P. Cawley, “Nondestructive Inspection of Composite Structures by Low Velocity Impact,” Review of Progress in Quantitative Nondestructive Evaluation, Vol. 5B, D.O. Thompson and D.E. Chimenti, eds., New York, Plenum Press, 1986, pp. 1253–1258. Cawley, P. and R.D. Adams, “Testing of Structures by Impact,” US Patent No. 4,542,639, 1985. Georgeson, G.E., S. Lea and J. Hansen, “Electronic Tap Hammer for Composite Damage Assessment,” Proceedings of SPIE, Vol. 2945, 1996, pp. 328–338. Georgeson, G.E., J.M. Hansen, J.R. Kollgaard, S.W. Lea and J.R. Bopp, “Damage Detection Device and Method,” US Patent No. 6,748,791, 2004. Hsu, D.K., D.J. Barnard, J.J. Peters and V. Dayal, “Physical Basis of Tap Test as a Quantitative Imaging Tool for Composite Structures on Aircraft,” Review of Progress in Quantitative Nondestructive Evaluation, Vol. 19B, D.O. Thompson and D.E. Chimenti, eds., Melville, New York, AIP, 2000, pp. 1857–1864. Hsu, D.K., D.J. Barnard, J.J. Peters and N.A. Hudelson, “Nondestructive Inspection and the Display of Inspection Results,” US Patent No. 6,327,921, 2001. Mitsuhashi, K., C. Jyomuta, F. Oka and H. Nishikawa, “Method and Apparatus for Impact-Type Inspection of Structures,” US Patent No. 5,048,320, 1991. Pfund, B., “Portable Test Hammer Apparatus,” US Patent No. 5,686,652, 1996. Roach, D.P. and K.A. Rackow, “Improving In-Service Inspection of Composite Structures: It’s a Game of CATT and MAUS,” FAA/NASA/DOD Conference on Aging Aircraft, September 2003. Wu, H. and M. Siegel, “Correlation of Accelerometer and Microphone Data in the Coin-Tap Test,” IEEE Transactions on Instrumentation and Measurement, Vol. 49, 2000, pp. 493–497.
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