Journal of Wind Energy (풍력에너지저널)

Korea Wind Energy Association (한국풍력에너지학회)
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Tensile Experiment and FE Analysis of L-type Flange Bolt Connection in Wind Turbine Support Structures

풍력터빈 지지구조물의 볼트 체결된 L형 플랜지에 대한 인장 실험 및 FE해석

  • Dae-Jin Jung ;
  • Ik-Qhang Choi
  • 정대진 (목포해양대학교 해양건설공학과) ;
  • 최익창 (목포해양대학교 해양건설공학과)
  • Received : 2024.05.09
  • Accepted : 2024.06.18
  • Published : 2024.06.30
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Abstract

In this study, a tensile test and FE analysis were conducted on a bolt-connected L-shaped flange to evaluate its behavior and load resistance. A total of five specimens were manufactured using the inner and outer distances and bolt diameters of the L-type flange as experimental variables. As a result of the tensile test of the L-shaped flange, as the internal and external length ratio (b/a) increased, the maximum load decreased and the maximum displacement increased. As the diameter (d) of the bolt increased, the maximum load and the deformation of the wall increased. The shapes of the destruction specimens showed two forms of destruction: one due to the fall of the nut and the surrender of the bolt as the thread of the bolt and nut was worn out, followed by the surrender of the wall. As a result of FE analysis, it was found that elasto-plastic model (EPM) analysis similarly tracks the behavior of the tensile test results.

Keywords

Acknowledgement

본 과제(결과물)은 2024년도 교육부의 재원으로 한국연구재단의 지원을 받아 수행된 지자체-대학 협력기반 지역혁신사업의 연구결과입니다.(2021RIS-002)

References

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