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

  • 제31권5호
  • /
  • Pages.44-54
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  • 2003
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  • 1225-1348(pISSN)
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  • 2287-6871(eISSN)
한국항공우주학회 (The Korean Society for Aeronautical and Space Sciences)
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포옴심재를 갖는 샌드위치 보의 재료 기계적 성질 및 굽힘 국소좌굴에 관한 연구

A study on the material mechanical properties and the flexural wrinkling of foam-filled sandwich beams

  • 발행 : 2003.06.01
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초록

샌드위치 보의 포옴심재와 면재에 대한 물성치 실험을 통해 이들의 기계적 특성을 파악하였다. 이들로부터 포옴심재 및 적층면재로 제작된 샌드위치 보의 굽힘 국소좌굴현상을 고찰하였다. 좌굴전 양상을 고려한 굽힘 국소좌굴해석이 3점 굽힘시험을 통한 실험값에 더 근접함으로서 이를 고려한 굽힘 국소좌굴해석의 타당함을 보였고 그 양상도 고찰하였다.

The experiments are performed to evaluate mechanical properties about foam and face materials of sandwich beams. These results are applied to the flexural wrinkling estimation of sandwich beam. The 3 point bending test shows that it is reasonable to include pre-buckling behavior in flexural wrinkling analysis, which is closer to experimental result. It is also conducted to survey the wrinkling behavior.

키워드

참고문헌

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