Volume 8, Issue 4 (December 1986)

    Deformation and Fracture of Random Short-Fiber SMC Composite Under Multiaxial Loading

    CODEN: CTROAD

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    Abstract

    Multiaxial deformation and failure behavior of a random short-fiber sheet molding compound (SMC) composite are studied. Experiments are conducted on an SMC-R50 glass-fiber reinforced polyester composite system under various combinations of multiaxial stresses. A sandwich specimen, consisting of SMC-R50 composite face plates adhesively bonded with aluminum honeycomb core, is specially designed for the multiaxial test. Analytical and numerical studies are performed to insure proper specimen design and to determine multiaxial stress in the SMC composite during deformation and fracture. The analytical study is formulated on the basis of elastic theory of bending and torsion of a multiphase composite system with the aid of a finite-element technique. The general nature and unique characteristics of the SMC-R50 composite deformation and fracture under multiaxial loading are determined. A multiaxial stress failure criterion for the composite material is also obtained from the test and analysis of the sandwich specimen.


    Author Information:

    Dasgupta, A
    Professor of theoretical and applied mechanics and graduate assistant, University of Illinois, Urbana, IL

    Wang, SS
    Professor of theoretical and applied mechanics and graduate assistant, University of Illinois, Urbana, IL


    Stock #: CTR10334J

    ISSN: 0884-6804

    DOI: 10.1520/CTR10334J

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    Author
    Title Deformation and Fracture of Random Short-Fiber SMC Composite Under Multiaxial Loading
    Symposium , 0000-00-00
    Committee D30