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首页> 外文期刊>Composite Structures >Low-velocity impact on carbon/epoxy tubes subjected to torque - Experimental results, analytical models and FEM analysis
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Low-velocity impact on carbon/epoxy tubes subjected to torque - Experimental results, analytical models and FEM analysis

机译：低速对承受扭矩的碳/环氧树脂管的影响-实验结果，分析模型和有限元分析

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摘要

This paper investigates the effect of torsional loads on the damage introduced by lateral impacts on cylindrical T300-carbon/epoxy specimens. A total of 16 specimens were subjected to a 7J transverse impact under various torsional preloads. Four different lamination sequences were studied. A two-degree-of-freedom spring-mass model was developed to investigate the impact dynamics. To account for the damage propagation, a non-linear model of the tube flexural stiffness is proposed. Moreover, impact damage initiation was studied in detail by various FEM analyses. For each laminate, results show an invariant delamination threshold contact force, suggesting that the delamination initiation is not affected by the torsional preload. On the other hand, as evidenced by the variation in the contact duration and the tube maximum deflection, delamination propagation is highly affected by the torsional load.
机译：本文研究了扭转载荷对圆柱T300碳/环氧树脂样品的侧向冲击造成的损伤的影响。总共16个样品在各种扭转预紧力下承受7J横向冲击。研究了四种不同的层压顺序。建立了一个两自由度的弹簧质量模型来研究冲击动力学。考虑到损伤的传播，提出了管弯曲刚度的非线性模型。此外，通过各种有限元分析对冲击损伤的产生进行了详细的研究。对于每个层压板，结果表明分层阈值接触力不变，这表明分层起始不受扭转预紧力的影响。另一方面，如接触持续时间和管子最大挠度的变化所证明的那样，分层传播受扭转载荷的影响很大。

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  • 来源
    《Composite Structures》 |2010年第3期|623-632|共10页
  • 作者

    G. Minak; S. Abrate; D. Ghelli; R. Panciroli; A. Zucchelli;

  • 作者单位

    Alma Mater Studiorum - Universita di Bologna, Mechanical Engineering Deportment, DIEM, viale del Kisorgimenro 2, 40136 Bologna, Italy;

    Department of Mechanical Engineering and Energy Processes, Southern Illinois University, Carbondale, IL 62901, USA;

    Alma Mater Studiorum - Universita di Bologna, Mechanical Engineering Deportment, DIEM, viale del Kisorgimenro 2, 40136 Bologna, Italy;

    Alma Mater Studiorum - Universita di Bologna, Mechanical Engineering Deportment, DIEM, viale del Kisorgimenro 2, 40136 Bologna, Italy;

    Alma Mater Studiorum - Universita di Bologna, Mechanical Engineering Deportment, DIEM, viale del Kisorgimenro 2, 40136 Bologna, Italy;

  • 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; carbon fiber; epoxy matrix; tubes; impact;

    机译：复合材料碳纤维;环氧基质管;影响;

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