Liquid crystals thermography is an effective technique for detecting flaws in fiberglass composites. A complete nondestructive evaluation system must combine a flaw detection technique with geometric and structural characterization of a detected flaw. Here, a liquid crystals kit capable of providing quantitative assessments of the structural integrity of fiberglas boats is developed. TeEnsile tests, four-point bending tests, and surface pressure tests are performed on specimens of SMC-R50 containing a wide variety of machined flaws. SMC-R50 is a sheet-molded fiberglass composite similar in constituents and mechanical properties to materials used in fiberglass boat construction. For the types of flaws considered, it is found that the tensile strength of a flawed specimen depends only on the reduction of cross-sectional area caused by the flaw.


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    Title :

    A liquid crystals kit for structural integrity assessment of fiberglass watercraft


    Additional title:

    Eine Fluessigkristall-Ausruestung fuer die Abschaetzung der strukturellen Ganzheit von Wasserfahrzeugen aus Glasfaser


    Contributors:

    Published in:

    Materials Evaluation ; 41 , 2 ; 202-210


    Publication date :

    1983


    Size :

    9 Seiten, 14 Bilder, 2 Tabellen, 20 Quellen


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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