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

The Korean Society of Mechanical Engineers (대한기계학회)
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Compressive Characteristics of New Wire-woven Cellular Metal

새로운 와이어 직조 다공질 금속의 압축 특성

  • Ko, Gyeong-Deuk (Automobile Research Center, Chonnam Nat'l Univ.) ;
  • Lee, Ki-Won (School of Mechanical Systems Engrg., Chonnam Nat'l Univ.) ;
  • Kang, Ki-Ju (School of Mechanical Systems Engrg., Chonnam Nat'l Univ.)
  • 고경득 (전남대학교 자동차연구소) ;
  • 이기원 (전남대학교 기계시스템공학부) ;
  • 강기주 (전남대학교 기계시스템공학부)
  • Received : 2010.05.17
  • Accepted : 2010.08.17
  • Published : 2010.11.01
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Abstract

In this study, a new type of wire-woven cellular metal named WBD(wire-woven bulk diamond) was developed. Like WBK(wire-woven bulk Kagome), WBD is composed of helically formed wires; WBK was introduced a few years ago, and its mechanical, thermal properties, and engineering applications have been extensively investigated. The number of wires that pass by one another at each cross point in WBD is four, whereas that in WBK is three. The mechanical behavior of WBD subjected to compression was investigated and the results were compared to those for WBK. For a given slenderness ratio the density and yield strength of WBD were about twice as high as those for WBK, but elastic stiffness of WBD was not that higher than that for WBK.

WBD(wire-woven bulk diamond)라고 명명한 와이어로 직조된 다공질 금속의 새로운 형태를 소개한다. WBD 는 기계적 열 특성과 공학적 응용면에서 몇 년 전에 소개되어진 WBK(wire-woven bulk Kaogme)와 같이 나선형 와이어로 구성된다. WBK 에서는 각 교차점에서 3 개의 와이어가 접하나 WBD 에서는 4 개의 와이어가 서로 접하여 배열된다. 압축하중 하에서 WBD 의 기계적 거동을 조사하고 그 결과를 WBK 와 비교하였다. 같은 세장비(d/c)에서 WBD 의 밀도 및 강도는 WBK 의 약 2 배이나, WBD 의 강성도는 WBK 보다 그만큼 높지 않다.

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References

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