STP1012

    Lateral Impact of Composite Cylinders

    Published: Jan 1989


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    Abstract

    An analytical study was conducted to explore and understand the mechanics of the lateral low-velocity impact of composite cylinders by a heavy mass. Two simple models are presented, which when compared with the experimental data demonstrate that the fundamental features of the impact event are represented. Although the results are preliminary, a failure model based on linear laminated shell theory and linear fracture mechanics gave a reasonable representation of the observed impact damage. A nonlinear ring model gave good insight into the physics of the impact event in the presence of delaminations and the resulting nonlinear effects.

    Keywords:

    composite pressure vessels, impact damage, residual strength, delamination, IM7 carbon fiber


    Author Information:

    Christoforou, AP
    University of Utah, Salt Lake City, UT

    Swanson, SR
    University of Utah, Salt Lake City, UT

    Beckwith, SW
    Hercules Aerospace Co., Magna, UT


    Paper ID: STP10426S

    Committee/Subcommittee: D30.02

    DOI: 10.1520/STP10426S


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