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Holographic study of propagating transverse waves in plates

Paper demonstrates the use of holographic interferometry to measure axisymmetric transverse wave propagation

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Abstract

The technique of double-exposure holographic interferometry was used to record the propagation of transverse waves in a plate. The waves were initiated by striking the plate in the center with a ballistic pendulum; this technique produced axisymmetric response of the plate. Several pulsed-laser interferograms were obtained, each of which showed the bending wave at a different time after the initiation of impact. From the interferograms, plots of the transverse displacement vs. distance from the center of impact were obtained. The experimental data compared favorably with analytical results for the problem.

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Authors and Affiliations

  1. Applied Mechanics Laboratory, IRW Systems, 90278, Redondo Beach, Calif.

    R. Aprahamian (member), D. A. Evensen (member) & J. L. Jacoby (member)

  2. Dynamic Loads Division, NASA/Langley Research Center, 23365, Hampton, Va.

    J. S. Mixson (member)

Authors
  1. R. Aprahamian
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  2. D. A. Evensen
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  3. J. S. Mixson
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  4. J. L. Jacoby
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Aprahamian, R., Evensen, D.A., Mixson, J.S. et al. Holographic study of propagating transverse waves in plates. Experimental Mechanics 11, 357–362 (1971). https://doi.org/10.1007/BF02320537

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  • DOI: https://doi.org/10.1007/BF02320537

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