Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Study on Compression Tests of Aluminum Foam and Honeycomb Sandwich Composites

알루미늄 폼 및 허니컴 샌드위치 복합재료의 압축실험에 관한 연구

  • Bang, Seung-Ok (Division of Mechanical Engineering, Graduate School, Kongju University) ;
  • Kim, Key-Sun (Division of Mechanical & Automotive Engineering, Kongju University) ;
  • Kim, Sei-Hwan (Division of Mechanical & Automotive Engineering, Kongju University) ;
  • Song, Soo-Gu (Dongshin Co., LTD.) ;
  • Cho, Jae-Ung (Division of Mechanical & Automotive Engineering, Kongju University)
  • 방승옥 (공주대학교 대학원 기계공학과) ;
  • 김기선 (공주대학교 기계자동차공학부) ;
  • 김세환 (공주대학교 기계자동차공학부) ;
  • 송수구 ((주) 동신) ;
  • 조재웅 (공주대학교 기계자동차공학부)
  • Received : 2001.08.10
  • Accepted : 2011.09.08
  • Published : 2011.09.30
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Abstract

In this study, in-plane and out-plane compression tests of aluminum foam and honeycomb sandwich composites were carried out. Through these tests, the relationships of load-displacements were analyzed and the compression characteristics were compared with each other. The specimens were compressed with the speed of 1mm/min by using the universal testing machine. Experimental procedures were taken with photograph by the camera and load cell data were stored into computer. Test results showed that buckling was occurred at the aluminum foam core and honeycomb core according to the increase of load. In the in-plane compression test, the maximum load of aluminum foam specimen was similar with that of honeycomb sandwich. The property of honeycomb was better than that of the foam in consideration of specific gravity. In the out-plane compression test, compression maximum load of aluminum honeycomb sandwich composite was higher than that of aluminum foam sandwich composite.

본 연구에서는 알루미늄 폼 및 허니컴 샌드위치 복합재료의 면내 외 압축실험을 수행하였다. 실험을 통하여 하중-변위의 관계를 분석하고 압축 특성을 비교한다. 시험편은 만능재료시험기를 사용하여 1 mm/min로 압축을 하였다. 실험과정은 카메라로 촬영하고, 로드셀에서 나오는 데이터는 컴퓨터로 저장하였다. 실험결과를 보면 하중이 증가함에 따라 알루미늄 폼 및 허니컴 심재에 좌굴이 발생하였다. 면내 압축실험에서 알루미늄 폼 및 허니컴 샌드위치 시험편의 압축 최대하중은 비슷하였다. 그러나 비중을 고려하면 허니컴이 폼보다 압축 특성이 더 우수하다. 면외 압축실험에서도 알루미늄 허니컴 샌드위치 복합재료의 압축 최대하중이 알루미늄 폼 샌드위치 복합재료보다 높게 나왔다.

Keywords

References

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