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Theoretical analysis on the collapse mechanisms of thin-walled composite tubes

机译:薄壁复合管倒塌机理的理论分析

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摘要

Thin walled tubes are often used as impact absorbing elements in automobiles and other transport vehicles. Round cylindrical and conical shells made of composite material prove to be popular energy absorber as they provide reasonably constant operating force, which is the primary characteristics of an ideal absorber. Based on experimental observations, a theoretical procedure is established to predict the post collapse load-compression characteristics of the composite shells. Analytical expressions were obtained to predict the average crush load and the crush length in a crush cycle for the composite conical shells as well as for the cylindrical tubes. The results so obtained were compared with the experimental values available from the literature.
机译:薄壁管通常在汽车和其他运输工具中用作冲击吸收元件。由复合材料制成的圆柱形和圆锥形外壳证明是流行的能量吸收器,因为它们提供合理恒定的操作力,这是理想吸收器的主要特征。基于实验观察,建立了理论程序来预测复合材料壳的倒塌后的压缩特性。获得了解析表达式,以预测复合圆锥形壳体以及圆柱管在破碎循环中的平均破碎载荷和破碎长度。将如此获得的结果与可从文献中获得的实验值进行比较。

著录项

  • 来源
    《Composite Structures》 |2013年第9期|43-49|共7页
  • 作者单位

    School of Science and Technology, University of Camerino, Madonna delle Carceri, 9, 62032 Camerino, Italy;

    School of Science and Technology, University of Camerino, Madonna delle Carceri, 9, 62032 Camerino, Italy;

    School of Science and Technology, University of Camerino, Madonna delle Carceri, 9, 62032 Camerino, 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

    Energy absorption; Axial compression; Composite tube; Theoretical analysis; Energetic approach;

    机译:能量吸收轴向压缩复合管理论分析能量法;

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