대한기계학회논문집A (Transactions of the Korean Society of Mechanical Engineers A)

  • 제31권2호
  • /
  • Pages.245-252
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  • 2007
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  • 1226-4873(pISSN)
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  • 2288-5226(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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연속된 와이어를 이용한 다층 PCM의 제조방법 및 특성 평가

A New Method to Fabricate Bulk PCMs from Continuous Wires and the Mechanical Behaviors

  • 이용현 (전남대학교 대학원 기계공학과) ;
  • 최지은 (전남대학교 자동차연구소) ;
  • 전인수 (전남대학교 기계시스템 공학부) ;
  • 강기주 (전남대학교 기계시스템 공학부)
  • 발행 : 2007.02.01
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초록

Since the new millennium, truss PCMs(Periodic Cellular Metals) have drawn attention because of their superior specific stiffness, strength and multi-functionality. Prior studies have focused on the structural design and optimization. Kagome truss PCM has been proved to have the higher resistance to plastic buckling, more plastic deformation energy and lower anisotropy than other truss PCMs. In this study, we introduce a new idea to fabricate multi-layered Kagome truss PCM from continuous wires which can gain high strength as in piano wires and can be controlled to be defect free owing to drawing process. The relative density, the stiffness and the strength under bending and compressive load are estimated through elementary mechanics and compared with the results from experiments and FEA. The failure mechanisms are analyzed, and also mechanical performance and production are discussed.

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참고문헌

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