STP696

    Detection of Damage in Composite Materials by Vibrothermography

    Published: Dec 1979


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    Abstract

    A new nondestructive inspection method, vibrothermography, has been studied here to determine its degree of application to the investigation of damage in composite materials. Subsurface damaged regions containing delaminations, relatively large matrix cracks, or matrix crazing are easily located by the method. A three-dimensional, anisotropic heat-conduction model, solved by a finite-difference method, has shown that the surface heat patterns monitored by thermography represent accurately the geometry and extent of the subsurface heat source.

    Keywords:

    vibrothermography, thermography, nondestructive tests, composite materials


    Author Information:

    Henneke, EG
    Professor and graduate student, Virginia Polytechnic Institute and State University, Blacksburg, Va

    Jones, TS
    Professor and graduate student, Virginia Polytechnic Institute and State University, Blacksburg, Va


    Paper ID: STP36026S

    Committee/Subcommittee: D30.04

    DOI: 10.1520/STP36026S


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