In composite aircraft structures, woven carbon-fiber-reinforced composites are used as elements of the boxes to mitigate damage during crash events and provide a measure of protection for the passengers against abrupt decelerations. Due to their multi-scale damage effects and complex coupling between failure mechanisms, despite years of extensive works of researchers around the world, a complete and validated methodology for predicting crushing behavior of woven composite structures has not yet been achieved. In the present paper, experimental and numerical investigations were conducted. The principal contribution is to model and adapt failure mechanisms; fragmentation and kink-bandings, for plain weave fabric CFRP composites, within an advanced numerical model to predict the quasi-static crush behavior of hat-shape cross-section coupons. A meso-scale model, which accounts for intralaminar damage, implemented as a user subroutine VUMAT in Abaqus/Explicit was developed and used. Eight layers of stacked solid elements model were used with saw teeth type and 45° chamfer-type triggering mechanisms to ensure a continuous stable crushing mode of failure. A comparison with experimental and existing numerical model Abq_Ply_Fabric results confirms the computational tool’s accuracy.


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    Title :

    A meso-mechanical material model describing a crash behavior of 2D plain weave fabric composites


    Additional title:

    CEAS Aeronaut J


    Contributors:

    Published in:

    CEAS Aeronautical Journal ; 12 , 1 ; 147-171


    Publication date :

    2021-01-01


    Size :

    25 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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