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Experimental investigation of energy absorption behaviour of circular carbon/epoxy composite tubes under quasi-static and dynamic crush loading

机译：圆形碳/环氧复合管准静态和动态挤压载荷下能量吸收行为的实验研究

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摘要

Carbon/epoxy composites demonstrate significant and promising improvements of the weight-to-performance ratio in the automotive industry. In this paper, their energy absorption performance is thoroughly investigated. Quasi-static and dynamic axial crush tests have been performed on a variety of carbon/epoxy composite tube specimens with different thicknesses, layups and architectures (fabric and unidirectional). It is shown that the frequency response of the drop weight test setup bias the crush load histories and give false peak crush loads which lead to a wrong understanding of the elastic behaviour of the composites. Different filtering processes are adopted to investigate their necessity and influence on the energy absorption performance of carbon/epoxy composites. Comparing the specific energy absorption and crush efficiency of the variety of carbon/epoxy composite tube specimens, the fabric ones perform better than the unidirectional ones. The results show that more energy can be absorbed in the quasi-static conditions.
机译：碳/环氧树脂复合材料在汽车工业中显示出显着且有希望的重量/性能比改善。在本文中，对它们的能量吸收性能进行了深入研究。已对各种厚度/叠层和结构（织物和单向）不同的碳/环氧树脂复合管样品进行了准静态和动态轴向压溃测试。结果表明，落锤测试装置的频率响应会偏向挤压载荷历史，并给出错误的峰值挤压载荷，这会导致对复合材料弹性行为的错误理解。采用不同的过滤方法研究其必要性及其对碳/环氧复合材料能量吸收性能的影响。通过比较各种碳/环氧复合管样品的比能吸收率和压碎效率，织物的性能要优于单向的。结果表明，在准静态条件下可以吸收更多的能量。

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  • 来源
    《Composite Structures》 |2019年第11期|111266.1-111266.13|共13页
  • 作者

    Liu Xing; Belkassem Bachir; Jonet Arnaud; Lecompte David; Van Hemelrijck Danny; Pintelon Rik; Pyl Lincy;

  • 作者单位

    Vrije Univ Brussel Dept Mech Mat & Construct Pleinlaan 2 BE-1050 Brussels Belgium|SIM M3 Program Technol Pk 935 BE-9052 Zwijnaarde Belgium;

    Royal Mil Acad Civil & Mat Engn Dept Renaissancelaan 30 BE-1000 Brussels Belgium;

    Vrije Univ Brussel Dept Mech Mat & Construct Pleinlaan 2 BE-1050 Brussels Belgium|Royal Mil Acad Civil & Mat Engn Dept Renaissancelaan 30 BE-1000 Brussels Belgium;

    Vrije Univ Brussel Dept Mech Mat & Construct Pleinlaan 2 BE-1050 Brussels Belgium;

    Vrije Univ Brussel Dept Fundamental Elect & Instrumentat Pleinlaan 2 BE-1050 Brussels Belgium;

  • 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

    Composite tube; Crush test; Data filtering; Frequency responses; Strain rate effects; Energy absorption;

    机译：复合管;压碎测试;数据过滤频率响应;应变率效应;能量吸收;

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