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Crushing characteristics of aluminum/CFRP/aluminum hybrid tubes prepared by spinning forming

机译：通过纺丝成形制备铝/ CFRP /铝杂交管的破碎特性

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摘要

The aluminum/carbon fiber reinforced plastics (CFRP)/aluminum hybrid tube (H-III) with a good interface bonding was prepared by spinning forming to explore its crushing behaviors and energy absorption mecha-nism. The quasi-static crushing test was conducted to analyze the crashworthiness. Wrapped hybrid tube (H-I) and assembling aluminum/CFRP/aluminum hybrid tube (H-II) were involved for comparative purpose. The results showed that H-III tube outperformed all hybrid structures in crashworthiness and possessed 20.5% higher energy absorption than the summation of the individual components. Good bonding interaction between CFRP/metal interface obtained by spinning forming promoted the extra restriction from outer alu-minum tube on the CFRP layer, which significantly improved the crashworthiness. Delamination failure behav-ior in CFRP/metal interface was numerically investigated. Moreover, the deformation modes of each layer in H-III hybrid structure comparing with corresponding single structure were explored. It was found that the development of delamination failure during crushing was bound to contribute to the improvement of energy absorption. The aluminum tubes in the single structure exhibited concertina mode while diamond mode dom-inated those in the hybrid structure under the bonding interaction. The more adequate damaged CFRP layer was identified in the hybrid structure than the single structure, making more contribution to energy absorption.
机译：通过纺丝成形制备具有良好界面粘合的铝/碳纤维增强塑料（CFRP）/铝杂合管（H-III）以探索其破碎行为和能量吸收机制 - NISM。进行了准静态粉碎试验以分析崩溃性。包装的混合管（H-I）和组装铝/ CFRP /铝杂化管（H-II）参与比较目的。结果表明，H-III管的持续性持续性持续性，比各组分的总和具有比较高的能量吸收更高的杂交结构。通过纺丝成形所获得的CFRP /金属界面之间的良好粘接相互作用促进了来自CFRP层上的外铝管的额外限制，从而显着提高了耐火性。数值研究了CFRP /金属界面中的分层失效行为-IOR。此外，探讨了与相应的单结构比较的H-III杂合结构中的每层的变形模式。结果发现，破碎过程中分层失效的发展必将有助于改善能量吸收。单个结构中的铝管在粘接相互作用下展示了符号模式，而金刚石模式在混合结构中介于混合结构中的那些。在混合结构中识别出比单一结构更具足够的损坏的CFRP层，为能量吸收做出更多贡献。

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  • 来源
    《Composite Structures》 |2020年第10期|112551.1-112551.16|共16页
  • 作者

    Han Zhengdong; Li Huaguan; Xu Xiaocun; Wang Hao; Li Hongli; Tao Jie;

  • 作者单位

    Nanjing Univ Aeronaut & Astronaut Coll Mat Sci & Technol Nanjing 211106 Peoples R China;

    Nanjing Univ Aeronaut & Astronaut Coll Mat Sci & Technol Nanjing 211106 Peoples R China|Nanjing Inst Technol Jiangsu Key Lab Adv Struct Mat & Applicat Technol Nanjing 211167 Peoples R China;

    Nanjing Univ Aeronaut & Astronaut Coll Mat Sci & Technol Nanjing 211106 Peoples R China;

    Nanjing Univ Aeronaut & Astronaut Coll Mat Sci & Technol Nanjing 211106 Peoples R China;

    Nanjing Univ Aeronaut & Astronaut Coll Mat Sci & Technol Nanjing 211106 Peoples R China;

    Nanjing Univ Aeronaut & Astronaut Coll Mat Sci & Technol Nanjing 211106 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Aluminum/CFRP/aluminum hybrid structure; Spinning forming; Crushing behavior; Energy absorption;

    机译：铝制/ CFRP /铝合金混合结构;纺纱成形;破碎行为;能量吸收;

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