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Analysis of Compressive Characteristics of Wire-woven Bulk Kagome

Wire-woven Bulk Kagome의 압축 특성 분석

  • 이병곤 (전남대학교 대학원 기계공학과) ;
  • 최지은 (전남대학교 자동차연구소) ;
  • 강기주 (전남대학교 기계시스템공학부) ;
  • 전인수 (전남대학교 기계시스템공학부)
  • Published : 2008.01.01

Abstract

Periodic cellular metals (PCMs) are actively being investigated because of their excellent specific strength and stiffness, and multi-functionality such as a heat disperse structure bearing external loading. The Kagome truss PCM has been proved that it has higher resistance to plastic buckling and lower anisotropy than other truss PCMs. In this paper, the out-of-plane compressive responses of the WBK specimens have been measured, theoretically predicted and numerically analyzed. Three specimens of two-layered WBK are fabricated and tested for measuring the responses. The peak stress of compressive behavior and effective elastic modulus are predicted based on the equilibrium equation and elastic energy conservation. Moreover, the structure of the specimen is modeled using the commercial mesh generation code, PATRAN and the finite element analysis for the model under the compression is carried out using the commercial FE code, ABAQUS. Finally, the obtained results are compared with each other to analyze the compressive characteristics of Wire-woven Bulk Kagome (WBK).

Keywords

PCM(Periodic Cellular Metal);WBK(Wire-woven Bulk Kagome);Modified Ramberg-Osgood relation;Compressive Characteristics;FEM(Finite Element Analysis)

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