Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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Fatigue Strength and Fracture Behaviour of CHS-to-RHS T-Joints Subjected to Out-of-Plane Bending

  • Bian, Li-Chun (College of Mechanical and Power Engineering, Nanjing University) ;
  • Lim, Jae-Kyoo (Department of Mechanical Design, Automobile Hi-Technology Research Center, Chonbuk National University) ;
  • Kim, Yon-Jig (Department of Mechanical Design, Automobile Hi-Technology Research Center, Chonbuk National University)
  • Published : 2003.02.01
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Abstract

The fatigue behaviour of six different hollow section T-joints subjected to out-of-plane bending moment was investigated experimentally using scaled steel models. The joints had circular brace members and rectangular chord members. Hot spot stresses and the stress concentration factors. (SCFs) were determined experimentally. Fatigue testing was carried out under constant amplitude loading in air. The test results have been statistically evaluated, and show that the experimental SCF values for circular-to-rectangular (CHS-to-RHS) hollow section joints were found to be below those of circular-to-circular (CHS-to-CHS) hollow section joints. The fatigue strength, referred to experimental hot spot stress, was in reasonably good agreement with referred fatigue design codes for tubular joints.

Keywords

References

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