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Stress Reduction Methods of GFRP/Mg Single Lap Bonded Joints : Finite Element Analysis

GFRP/Mg 단일겹치기 접착 체결부의 응력집중 저감에 관한 연구 : 유한요소해석

  • 김정석 (한국철도기술연구원 철도구조연구실) ;
  • 윤혁진 (한국철도기술연구원 구조연구실) ;
  • 황재연 (한국철도기술연구원 구조연구실)
  • Received : 2010.11.26
  • Accepted : 2011.03.11
  • Published : 2011.04.26

Abstract

In this study, the stress reduction effect was evaluated for GFRP/Mg single lap bonded joints according to six different adherend shapes. Six different types of the single lap joint specimen were modeled and assessed using geometrically nonlinear finite element analysis. Moreover, three dimensional effect of stress distribution for the different adherend shapes was investigated. From the analysis, the dissimilar single lap bonded joint with the normal tapering and without the spew fillet (model 2) showed the highest stress values. In contrast, the peel stress values of both the square ended adherends with the spew fillet (model 3) and the reverse tapered adherends with the spew fillet (model 5) were 65.8% and 65.5% lower than the reference model.

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