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    Mechanics-based modeling approach for rapid prediction of low velocity impact damage in composite laminates

    Date
    2020-01-05
    Author
    Borkowski, Luke B.
    Kumar, Rajesh Suresh
    Palliyaguru, Upul R.
    Metadata
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    Citation
    Luke Borkowski, Rajesh S. Kumar, and Upul R. Palliyaguru. 2020. Mechanics-based modeling approach for rapid prediction of low velocity impact damage in composite laminates. AIAA Scitech 2020 Forum, vol. 1:pt. F
    Abstract
    A mechanics-based modeling approach is developed to rapidly predict damage in polymer matrix composites resulting from a low velocity impact event. The approach is incorporated into a computer code that provides an efficient means to assess the damage resistance for a range of material systems, layup configurations, and impact scenarios. It is envisioned that the developed approach will aid in early design and analysis of composite structures where sizing and layup decisions must be made, and evaluating the feasibility of a large number of laminate configurations using numerical approaches such as finite element analysis (FEA) is prohibitively expensive. Therefore, the goal of the modeling approach is to predict the impact damage size given the laminate configuration and impact scenario. This information can then be used to determine the residual strength of the material. To be useful in such a context, the tool is designed to run quickly (<2 minutes) to allow a large number of design cases to be investigated. The results presented demonstrate that the model is capable of efficiently predicting low velocity impact damage size, shape, and location within an acceptable accuracy suitable for preliminary design and analysis of composite structures.
    Description
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    URI
    https://doi.org/10.2514/6.2020-0726
    https://soar.wichita.edu/handle/10057/19538
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