Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Design Improvement of Composite Door Section Impact Beam by Three-Point Bending Analysis

3점 굽힘 하중 해석을 통한 복합재 도어 임팩트 빔 단면형상 설계개선

  • Ha, Jung-Chan (School of Convergence Mechanical Engineering, Gyeongsang National University) ;
  • Oh, Sung Ha (Maxoft Inc.) ;
  • Baek, In-Seok (School of Mechanical and Aerospace Engineering,ERI, Gyeongsang National University) ;
  • Lee, Seok-Soon (School of Mechanical and Aerospace Engineering,ERI, Gyeongsang National University)
  • 하중찬 (경상대학교 대학원 융합기계공학과) ;
  • 오성하 (맥소프트(주)) ;
  • 백인석 (경상대학교 대학원 기계항공공학부, ERI) ;
  • 이석순 (경상대학교 대학원 기계항공공학부, ERI)
  • Received : 2020.03.25
  • Accepted : 2020.05.21
  • Published : 2020.06.30
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Abstract

The currently observed trend in car manufacturing is to increase energy-efficiency by producing lighter cars. This study examines the replacement of particular parts, specifically around the impact beam, with material composites 30% lighter than conventional steel currently used. The shape of the impact beam was determined as the trapezoidal cross-sectional area with central reinforcement, using three-point bending analysis. A prototype was fabricated based on the findings of our study and its performance was evaluated by the three-point bending analysis; 2 ply of aramid applied for its displacement. The performance of the final prototype for the door assembly was evaluated using a side-door strength test, which resulted to measured initial strength of 10.5 KN and intermediate strength of 15.6 KN. This research provides a promising solution for better impact beam manufacturing.

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References

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