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Failure analysis of 3D woven composites under tension based on realistic model
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作者 Binbin ZHANG guangchang chen +4 位作者 Bing WANG Jingran GE Mengran LI Zengfei LIU Jun LIANG 《Chinese Journal of Aeronautics》 SCIE EI CAS 2024年第11期242-253,共12页
The failure behavior of the three-dimensional(3D)woven composites under tension are evaluated via experimentation and simulation.To accurately depict the intricate geometry of the woven composites,including the fluctu... The failure behavior of the three-dimensional(3D)woven composites under tension are evaluated via experimentation and simulation.To accurately depict the intricate geometry of the woven composites,including the fluctuation of yarn paths,variations in cross-section,and resin distribution,the image-aided digital elements modeling approach is employed.Subsequently,to further assess both the tensile performance and damage response,a realistic voxel model is established with the integration of a well-suited progressive damage model.The obtained stress-strain curves align with the experimental results,and damage progression and underlying mechanisms involved are clearly revealed.Specifically,when subjected to warp tension,severe transverse damage and fiber bundle pull-out towards the warp yarns are observed within the curved section.Similarly,under weft loading,longitudinal damage is found to occur in the weft yarns,while the warp yarns suffer from transverse damage,leading to the formation of a smooth and brittle crack.Ultimately,the findings of this study hold potential to advance the engineering applications of the3D woven composites. 展开更多
关键词 Mechanical properties Failure analysis Woven composites Realistic model Digital element methodology
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