STP873

    The Influence of Microstructural Variability upon the Scatter in Mechanical Properties of R25 Sheet Molding Compound

    Published: Jan 1985


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    Abstract

    The large scatter in the static strengths of R25 sheet molding compounds was observed to be related to the variability in the complex microstructure of this material. This microstructure consists of a subsurface veil of individual glass fibers and an internal core of intact fiber glass bundles.

    Keywords:

    sheet molding compounds, discontinuous composites, composites variability, composite microstructure


    Author Information:

    Shirrell, CD
    Staff research engineer, Polymers Department, General Motors Research Laboratories, General Motors Technical Center, Warren, MI


    Paper ID: STP34011S

    Committee/Subcommittee: D30.08

    DOI: 10.1520/STP34011S


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