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    Progressive damage mechanisms in thick 3D composites structures under static and fatigue loading

    Date
    2020-09
    Author
    Rao, Prabhakar M.
    Gurvich, Mark R.
    Waas, Nalinda W.
    Palliyaguru, Upul R.
    Seneviratne, Waruna P.
    Metadata
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    Citation
    Rao, P. M., Gurvich, M. R., Waas, N. W., Palliyaguru, U. R., & Seneviratne, W. (2020). Progressive damage mechanisms in thick 3D composites structures under static and fatigue loading. Paper presented at the Proceedings of the American Society for Composites - 35th Technical Conference, ASC 2020, 1804-1821.
    Abstract
    The objective of this work is to demonstrate validation of predictive capabilities capturing both damage initiation and growth under static and fatigue loading in geometrically complex three-dimensional (3D) composite structures. The composite structure of interest in the present study resembles a 3D blade spar used in rotorcraft applications. Under both static and fatigue testing, it was shown that damage initiated at the same ply-drop location(s) and grew in the axial as well as hoop directions. CompDam – a state-of-the-art Progressive Damage Analysis (PDA) tool was used to achieve successful correlations of metrics including load-displacement responses and damage modes.
    Description
    Click on the DOI link to access this conference paper on the publisher’s website (may not be free.)
    URI
    https://soar.wichita.edu/handle/10057/19904
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