Composites Research

The Korean Society for Composite Materials (한국복합재료학회)
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A Study on Structural Design of Natural Fiber Composites Automobile Body Panel Considering Impact Load

충돌 하중을 고려한 친환경 자연섬유 복합재 적용 자동차 차체 패널의 구조 설계 연구

  • Park, Kilsu (Department of Aerospace Engineering, Chosun University) ;
  • Kong, Changduk (Department of Aerospace Engineering, Chosun University) ;
  • Park, Hyunbum (Department of Defense & Science Technology-Aeronautics, Howon University)
  • Received : 2015.06.30
  • Accepted : 2015.10.27
  • Published : 2015.10.31
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Abstract

In this study, structural design and analysis of the automobile bonnet is performed. The flax/vinly ester composite material is applied for structural design. The Vacuum Assisted Resin Transfer Molding-Light (VARTML) manufacturing method is adopted for manufacturing the flax fiber composite bonnet. The VARTML is a manufacturing process that the resin is injected into the fly layered-up fibers enclosed by a rigid mold tool under vacuum. A series of flax/vinyl ester composite panels are manufactured, and several kinds of specimens cut out from the panels are tested to obtain mechanical performance data. Based on this, structural design of the automobile bonnet is performed.

본 연구에서는 자동차 구조물의 경량화를 위해 자연섬유 복합재료를 적용하여 차량용 패널의 구조 설계 및 해석을 수행하였다. 구조 설계를 위해 Flax/vinyl ester 복합재료를 적용하였다. 섬유 복합재 패널의 제조공법은 VARTML(Vacuum Assisted Resin Transfer Molding-Light) 제조공법이 적용되었다. 구조 설계 후 충돌에 의한 구조물의 안전성을 분석하기 위해 충돌 실험을 수행하였다. 충돌 실험은 유럽 보행자 보호 기준에 맞게 수행하였으며 해석 결과를 검증하기 위하여 시편을 제작해 충격 실험을 수행하였다. 또한 충격 손상 후 구조물의 잔류강도를 측정하기 위해 손상을 가한 시편의 압축강도 실험을 수행하였다.

Keywords

References

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  1. 충돌해석을 이용한 전기자동차 복합소재 프레임 설계에 관한 연구 vol.19, pp.2, 2015, https://doi.org/10.14775/ksmpe.2020.19.02.075