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Quasi-static axial crushing experiment study of foam-filled CFRP and aluminum alloy thin-walled structures

机译：泡沫CFRP与铝合金薄壁结构准静态轴向破碎试验研究

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摘要

Thin-walled aluminum alloy (Al alloy) structure, carbon fiber reinforced plastics (CFRP) tube, aluminum foam (Al foam) and polyurethane foam (PU foam) all can be used as good energy absorbers in automobile, aviation and other industries for their light weight and high energy absorption capacity. In order to clarify the advantages of the design modes, this article studies the crushing behaviors of circular, hexagonal and square CFRP and Al alloy tapered tube and their foam-filled structures subjected to quasi-static axial compression, analyzes and compares the collapse modes and force-displacement curves of these investigated structures as well as calculates the energy absorption (EA) and the specific energy absorption (SEA) of these investigated structures. Experimental results show that the CFRP tapered tubes have higher SEA than that of the Al-alloy tapered tubes and the circular CFRP tubes filled with PU foam have better energy absorption capacity than that of the square and hexagonal structures. In addition, the SEA of the CFRP tube filled with PU foam is 30% higher than that of the Al alloy tube filled with Al foam. Therefore this article leads to a conclusion that PU foam-filled CFRP tapered tube is a potential structure for energy absorber and light weight design. (C) 2016 Elsevier Ltd. All rights reserved.
机译：薄壁铝合金结构，碳纤维增强塑料（CFRP）管，铝泡沫（Al泡沫）和聚氨酯泡沫（PU泡沫）都可以用作汽车，航空和其他行业的良好能量吸收剂重量轻，能量吸收能力高。为了阐明设计模式的优势，本文研究了圆形，六角形和方形CFRP和铝合金锥形管及其泡沫填充结构在准静态轴向压缩下的破碎行为，分析并比较了塌陷模式和这些研究结构的力-位移曲线，以及计算这些研究结构的能量吸收（EA）和比能量吸收（SEA）。实验结果表明，CFRP锥形管的SEA高于铝合金锥形管，而填充有PU泡沫的圆形CFRP管的吸能能力比方形和六边形结构更好。此外，填充有PU泡沫的CFRP管的SEA比填充有Al泡沫的铝合金管的SEA高30％。因此，本文得出结论，PU泡沫填充CFRP锥形管是能量吸收器和轻量化设计的潜在结构。 （C）2016 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Composite Structures》 |2016年第12期|303-319|共17页
  • 作者

    Gan Nianfei; Feng Yanan; Yin Hanfeng; Wen Guilin; Wang Duohua; Huang Xinyi;

  • 作者单位

    Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China|Hunan Univ, Minist Educ, Key Lab Adv Design & Simulat Tech Special Equipme, Changsha 410082, Hunan, Peoples R China;

    Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China;

    Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China|Hunan Univ, Minist Educ, Key Lab Adv Design & Simulat Tech Special Equipme, Changsha 410082, Hunan, Peoples R China;

    Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China|Hunan Univ, Minist Educ, Key Lab Adv Design & Simulat Tech Special Equipme, Changsha 410082, Hunan, Peoples R China;

    Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China;

    Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, 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

    CFRP; Polyurethane foam; Aluminum alloy; Aluminum foam; Quasi-static axial crushing experiment;

    机译：CFRP;聚氨酯泡沫;铝合金;铝泡沫;准静态轴向破碎实验;

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