Design of a composite roll bar for the improvement of bus rollover crashworthiness

Kyoung Tak Kang, Heoung Jae Chun, Jong Chan Park, Wook Jin Na, Hyoung Taek Hong, In Han Hwang

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)


This paper discusses a new carbon-epoxy composite roll bar installed in a bus. It aim of this new roll bar is to satisfy the stiffness and strength requirements and maintain the traditional metallic structural parts reinforced by the composite roll bar. In this study, bus rollover was investigated the implementation of adequate material models for accurate treatment. The benefits of this new material include a lower center of gravity and reduced mass and roll moment of inertia of the vehicle. The performance of the structures with regard to ECE R66 was compared between the initial and composite roll bar bus models. The bus structure reinforced by the composite roll bar was able to secure a substantial margin of the survival zone as well as to meet the requirement specified by ECE R66.

Original languageEnglish
Pages (from-to)1705-1713
Number of pages9
JournalComposites Part B: Engineering
Issue number4
Publication statusPublished - 2012 Jun


  • Carbon fibre
  • Computational modeling
  • Finite element analysis (FEA)
  • Rollover analysis

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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