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Numerical and experimental investigations on the axial crushing response of composite tubes

机译：复合管轴向挤压响应的数值和实验研究

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摘要

Quasi-static tests were performed on carbon reinforced composite tubes to examine their axial crushing response. Stable progressive crushing processes with brittle fracturing crushing modes were observed during experiments. Numerical investigations were also conducted. Details on the numerical modelling strategy were given and discussed, it is found that triggers introduced in the numerical simulation can effectively model the bevel trigger at the end of the tubular specimens and result in stable progressive crushing. It is also found that the two-layer finite element model based on the Chang-Chang failure criteria is effective in representing the energy absorption characteristics and crushing failure mode of the tubular composite specimens.
机译：对碳纤维增强复合材料管进行了准静态测试，以检查其轴向挤压响应。在实验过程中观察到稳定的渐进式破碎过程，具有脆性压裂破碎模式。还进行了数值研究。给出并讨论了数值建模策略的详细信息，发现在数值模拟中引入的触发器可以有效地模拟管状标本末端的斜角触发器，并导致稳定的渐进式破碎。研究还发现，基于常昌破坏准则的两层有限元模型可以有效地表示管状复合材料试样的能量吸收特性和破碎破坏模式。

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  • 来源
    《Composite Structures》 |2009年第2期|222-228|共7页
  • 作者

    Jiancheng Huang; Xinwei Wang;

  • 作者单位

    College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, People's Republic of China;

    College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, People's Republic of 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

    composites; crashworthiness; simulation; energy absorption; triggers; axial crushing;

    机译：复合材料耐撞性模拟;能量吸收触发器;轴向破碎;

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