Spectrum analysis of acoustic emission signals from carbon-glass hybrid composites

Madhava, MR and Sudheendra, HN (1989) Spectrum analysis of acoustic emission signals from carbon-glass hybrid composites. Technical Report. National Aerospace Laboratories, Bangalore, India.

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    Abstract

    The use of a simple acoustic emission (AE) technique to study the failure process in carbon-glass hybrid composites is studied. The technique incorporates an unconventional frequency spectrum analysis procedure. The frequency spectrum of AE signals was recorded during the tensile testing of composite specimens. It is found that, in the case of glass-epoxy composites, the high frequency components begin to appear at earlier stages in the load cycle compared to those observed in carbon-epoxy composites

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Acoustic emission;Carbon fiber reinforced plastics;glass fiber reinforced plastics;spectrum analysis;tensile tests;failure analysis;graphite-epoxy composites
    Subjects: ENGINEERING > Quality Assurance and Reliability
    Division/Department: Structures Division, Structures Division
    Depositing User: shankar sk nadoor
    Date Deposited: 13 Nov 2006
    Last Modified: 24 May 2010 09:53
    URI: http://nal-ir.nal.res.in/id/eprint/3383

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