Preliminary Evaluation of Non-Contact Acousto-Ultrasonic Displacement Fields in Polymeric Matrix Composite

  • James H. WilliamsJr.
  • Peter Liao

Abstract

A unidirectional fiberglass epoxy composite is modelled as a homogeneous transversely isotropic continuum plate medium. Acousto-ultrasonic non-contact input-output characterization by tracing the stress waves (SH, P and SV waves) in the continuum is studied as if a transmitting and a receiving transducer were located on the same face of the plate but without direct contact.

The output displacements associated with each type of stress wave in the fiberglass epoxy composite are approximated by an asymptotic solution for an infinite transversely isotropic medium subjected to a harmonic point load. The polar diagrams for the amplitudes due to each type of stress wave in the plate are given.

Keywords

Acoustic Emission Stress Wave Polar Diagram Output Displacement Plate Specimen 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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    T. P. Liao and J. H. Williams, Jr., “Acousto-Ultrasonic Input-Output Characterization of Unidirectional Fiber Composite Plate by P Waves.” NASA Contractor Report (in preparation).Google Scholar
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    T. P. Liao and J. H. Williams, Jr., “Acousto-Ultrasonic Input-Output Characterization of Unidirectional Fiber Composite Plate by SV Waves,” NASA Contractor Report (in preparation).Google Scholar

Copyright information

© Springer Science+Business Media New York 1988

Authors and Affiliations

  • James H. WilliamsJr.
    • 1
  • Peter Liao
    • 2
  1. 1.Massachusetts Institute of TechnologyCambridgeUSA
  2. 2.AT&T Bell LaboratoryWhippanyUSA

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