• 풍력에너지저널
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• 제15권2호
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• pp.37-44
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• 2024

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.

• 한국진공학회지
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• 제11권2호
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• pp.81-86
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• 2002

KSTAR 진공용기의 대형포트에 사용하려고 계획하고 있는 Helicoflex 개스킷의 특정 모델에 대해 플랜지 체결 특성 특히 토크(또는 선하중) 및 변형량과 기체누설률의 관계를 조사하여 기밀곡선을 구하는 실험을 수행했다. 그 결과 상온에서는 Ml8 볼트의 경우 토크 2500 kg.cm에서 Helicoflex를 채용한 플랜지의 기체누설률은 $2\times10^{-1}$ /mbar.L/s이하였다.