Journal of the Korean Society for Aeronautical & Space Sciences (한국항공우주학회지)

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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Effect of joining methods on the failure of aluminum honeycomb sandwich joints under shear loading

전단하중을 받는 알루미늄 하니콤 샌드위치의 체결방식이 체결부의 파손에 미치는 영향 연구

  • 박용빈 (경상대학교 대학원 항공우주공학과) ;
  • 권진회 (경상대학교 항공우주시스템공학과, 항공기부품기술연구소) ;
  • 최진호 (경상대학교 기계공학부, 항공기부품기술연구소) ;
  • 조현일 (한국항공우주산업(주))
  • Received : 2011.03.30
  • Accepted : 2011.06.08
  • Published : 2011.07.01
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Abstract

An experimental study on the failure of aluminum sandwich joints under shear loading was conducted. A total of 60 specimens including three different insert types and two different potting types were fabricated and tested. The test results showed that the through-clearance type of joint fails at the highest load among insert type joints. The failure load of the potted joints with the dimple washer increased by 10% compared to the simple potted joints. As expected, the shear failure load became higher in accordance with the face thickness increase. It was also found that the upper face in contact with the loading tool is more dominant over the failure load.

본 논문에서는 전단하중을 받는 다양한 알루미늄 샌드위치 체결부의 파손 특성에 대한 시험 연구를 수행하였다. 3종류의 인서트 형식 체결부와 2종류의 포팅 형식 체결부에 대해 총 60개의 시편을 제작하여 시험을 수행하였다. 시험 결과, 인서트 형식 체결부의 경우 쓰루 클리어런스(through-clearance) 인서트를 사용한 경우의 파손하중이 가장 높게 나타났으며 포팅 형식 체결부의 경우 딤플 와셔(dimple washer)가 있을 때 전단하중이 약10% 향상되는 것을 확인할 수 있었다. 예상대로 면재의 두께가 증가할수록 전단파손하중도 증가하고, 특히 하중치구와 접촉하고 있는 상부 면재의 효과가 지배적인 것을 확인하였다.

Keywords

References

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