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Impact collapse behavior of CFRP structural members according to the variation of section shapes and stacking angles

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Abstract

The design of car body structural member aimed to develop members with the optimum impact characteristics to ensure a protected space for passengers in the case of automobile collisions. Accordingly, these members were fabricated to provide sufficient rigidity and safety to the passenger room structure and to absorb large amounts of energy during collision. CFRP(Carbon Fiber Reinforced Plastics) of the advanced composite materials as structure materials for vehicles, has a widely application in lightweight structural materials of air planes, ships and automobiles because of high strength and stiffness. In this study, impact collapse characteristics and collapse modes were quantitatively analyzed according to the changes in section shape(square, single and double-hat shaped section) and stacking angles([+15°/-15°]4,[+45°/-45°]4, and [90°/0°]4). This analysis was performed to obtain design data that can be applied in the development of optimum lightweight members for automobiles.

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Authors and Affiliations

  1. Department of Mechanical Design Engineering, Chosun University, 309, Pilmun-daero, Dong-gu, Gwangju, 501-759, South Korea

    Ji-Hoon Kim & In-Young Yang

  2. Fire Protections and Safety Engineering, Dongkang College, 50, Dongmun-daero, Buk-gu, Gwangju, 500-714, South Korea

    Yong-June Yang & Cheon-Seok Cha

  3. Department of Mechanical and Automotive Engineering, Songwon University, 73, Songam-ro, Nam-gu, Gwangju, 503-742, South Korea

    Jong-An Jung

  4. Department of Mechanical and Automotive Engineering, Woosuk University, 443, Samnye-ro, Samnye-eup, Wanju-Gun, Jeollabuk-do, 565-701, South Korea

    Kwang-Hee Im

  5. Division of Mechanical System Engineering, Chonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do, 561-756, South Korea

    Sun-Kyu Kim

  6. Honam Region Business Department, Korea Testing Certification, B-605, 313, Cheomdangwagi-ro, Buk-gu, Gwangju, 500-470, South Korea

    Woo-Chae Hwang

Authors
  1. Woo-Chae Hwang
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  2. Yong-June Yang
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  3. Cheon-Seok Cha
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  4. Jong-An Jung
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  5. Ji-Hoon Kim
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  7. Sun-Kyu Kim
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  8. In-Young Yang
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Correspondence to In-Young Yang.

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Hwang, WC., Yang, YJ., Cha, CS. et al. Impact collapse behavior of CFRP structural members according to the variation of section shapes and stacking angles. Int. J. Precis. Eng. Manuf. 16, 677–684 (2015). https://doi.org/10.1007/s12541-015-0090-5

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  • DOI: https://doi.org/10.1007/s12541-015-0090-5

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