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Design and Manufacture of Automotive Hybrid Steel/Carbon Fiber Composite B-Pillar Component with High Crashworthiness

  • Dug-Joong Kim
  • Jaeyoung Lim
  • Byeunggun Nam
  • Hee-June Kim
  • Hak-Sung KimEmail author
Regular Paper
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Abstract

A composite B-pillar was designed and manufactured by design optimization combined with an impact analysis. A carbon-fiber-reinforced plastic (CFRP) was used for the reinforcement part of the B-pillar assembly to substitute the conventional steel materials for reducing the weight of vehicle. To maximize the impact performance by finite element method, the equivalent static loads method was used. The shape, stacking sequence, and thickness of the CFRP reinforcement were optimized to minimize the deflection profile for improving the crashworthiness while reducing the weight. The designed CFRP B-pillar was manufactured and its performance was evaluated by a drop weight test. As a result, the CFRP B-pillar exhibited an improved impact performance and reduced weight compared to those of the conventional steel B-pillar.

Keywords

Carbon fibre Structural composites Impact behavior Finite element analysis (FEA) Resin transfer moulding (RTM) 

Notes

Acknowledgements

This work was supported by a National Research Foundation of Korea (NRF), funded by the Ministry of Education (2018R1D1A1A09083236). This research was also supported by a National Research Foundation of Korea (NRF) grant funded by the Korean Government (MEST) (2013M2A2A9043280). This work was also supported by the Industrial Strategic technology development program (10076562, Development of fiber reinforced thermoplastic nano-composite via fiber bundle spreading for high quality resin impregnation process and its application to the underbody shield component for protecting battery pack of an electric-vehicle) funded By the Ministry of Trade, industry & Energy(MI, Korea). This work was also supported by a Collaborative Project between Hanyang University and Hyundai Motors Co. Ltd.

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Copyright information

© Korean Society for Precision Engineering 2020

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringHanyang UniversitySeoulSouth Korea
  2. 2.Hyundai Motor Group R&D DivisionSeoulSouth Korea
  3. 3.Automotive Materials Laboratory, LG HausysSeoulRepublic of Korea
  4. 4.Institute of Nano Science and Technology, Hanyang UniversitySeoulSouth Korea

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