Journal of Mechanical Science and Technology

, Volume 23, Issue 5, pp 1270–1277 | Cite as

Effect of imperfections on the mechanical behavior of wire-woven bulk kagome truss PCMs under shear loading

Article
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Abstract

Wire-woven bulk kagome (WBK) materials are a new class of cellular metallic structures possessing desired mechanical performance and can be fabricated easily by assembling metallic wires. In previous studies, the WBK materials were shown to have high strength and weak sensitivity on imperfections under compressive loads. In this paper, we present numerical simulation results on the mechanical performance of WBK and its sensitivity on imperfections under shear loads. Two types of statistical imperfections on geometry and material property were introduced in the simulation models as likewise the previous studies. The simulation results were compared with the experimental measurement on the WBK made of stainless wire (SUS304). The WBK were shown to have a good isotropic mechanical strength under various orientations of shear loadings.

Keywords

Cellular metal PCM (Periodic Cellular Metal) Kagome truss Imperfections PBC (periodic boundary condition) Random network analysis 
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References

  1. [1]
    S. Hyun, A. M. Karlsson, S. Torquato and A. G. Evans, Simulated properties of Kagome and tetragonal truss core panel, Int. J. Solids Structures, 40 (2003) 6989–6998.MATHCrossRefMathSciNetGoogle Scholar
  2. [2]
    F. W. Zok, S. A. Waltner, Z. Wei, H. J. Rathbun, R. M. McMeeking and A. G. Evans, A protocol for characterizing the structural performance of metallic sandwich panels: application to pyramidal truss cores, Int. J. Solids Structures, 41 (2004) 6249–6271.MATHCrossRefGoogle Scholar
  3. [3]
    D. J. Sypeck and H. N. G. Wadley, Cellular metal truss core sandwich structures, Banhart, J., Ashby, M.F., Fleck, N.A. (Eds), Proc. of Cellular Metals and Metal Foaming Technology, (2001) 381–386.Google Scholar
  4. [4]
    V. S. Deshpande, N. A. Fleck and M. F. Ashby, Effective properties of the octet-truss lattice material, J. Mech. Phys. Solids, 49 (2001)1747–1769.MATHCrossRefGoogle Scholar
  5. [5]
    S. Chiras, D. R. Mumm, N. Wicks, A. G. Evans, J. W. Hutchinson, K. Dharamasena, H. N. G. Wadley and S. Fichter, The structural performance of nearoptimized truss core panels, Int. J. Solids Structures, 39 (2002) 4093–4115.CrossRefGoogle Scholar
  6. [6]
    H. N. G. Wadley, N. A. Fleck and A. G. Evans, Fabrication and structural performance of periodic cellular metal sandwich structures, Composite Science and Technology, 63 (2003) 2331–2343.CrossRefGoogle Scholar
  7. [7]
    A. G. Evans, J. W. Hutchinson, N. A. Fleck, M. F. Ashby and H. N. G. Wadley, The topological design of multifunctional cellular metals, Prog. Mater. Sci., 46 (2001) 309–327.CrossRefGoogle Scholar
  8. [8]
    K. J. Kang, G. P. Jeon, S. J. Nah, B. S. Ju and N. H. Hong, A new way to manufacture ultra light metal structures, J. Korean Soc. Mech. Eng. A, 28 (2004) 296–303.CrossRefGoogle Scholar
  9. [9]
    Y. H. Lee, B. K. Lee, I. Jeon and K. J. Kang, Wirewoven bulk Kagome (WBK) truss cores, Acta Material, 55 (2007) 6084–6094.CrossRefGoogle Scholar
  10. [10]
    K. J. Kang and Y. H. Lee, Three-dimensional cellular light structures directly woven by continuous wires and the manufacturing method of the same, Patent Pending, PCT/KR2004/002864 /05 November (2004).Google Scholar
  11. [11]
    Y. H. Lee, J. E. Choi and K. J. Kang, A new periodic cellular metal with Kagome trusses and its performance, ASME International Mechanical Engineering Congress and Exposition, Chicago, USA, (2006) IMECE2006-15467.Google Scholar
  12. [12]
    S. Hyun, J. E. Choi and K. J. Kang, Mechanical behaviors under compression in wire-woven bulk Kagome truss PCMs —Part I: Upper bound solution with uniform deformation, Trans. of the KSME A, 31(2007) 694–700.Google Scholar
  13. [13]
    S. Hyun, J. E. Choi and K. J. Kang, Mechanical behaviors under compression in wire-woven bulk Kagome truss PCMs — Part II: Effects of geometric and material imperfections, Trans. of the KSME A, 31 (2007) 792–799.Google Scholar
  14. [14]
    H. He and M.F. Thorpe, Elastic properties of glasses, Phys. Rev. Lett., 54 (1985) 2107.CrossRefGoogle Scholar
  15. [15]
    D. J. Jacobs and M. F. Thorpe, Generic rigidity percolation: the pebble game, Phys. Rev. Lett., 75 (1995) 4051.CrossRefGoogle Scholar
  16. [16]
    American Society for Testing and Materials Designation C273/C 273M, Standard Test Method for Shear Properties of Sandwich Core Materials, Copyright ASTM International, West Conshohocken, PA 19428-2959, United States.Google Scholar
  17. [17]
    N. J. Mills, The high strain mechanical response of the wet Kelvin model for open-cell foams. Int. J. Solids Structures, 44 (2007) 51–65.MATHCrossRefGoogle Scholar

Copyright information

© The Korean Society of Mechanical Engineers and Springer-Verlag GmbH 2009

Authors and Affiliations

  1. 1.Simulation CenterKorea Inst. of Ceramic Eng. & Tech.SeoulKorea
  2. 2.Automobile Research CenterChonnam National UniversityGwangjuKorea
  3. 3.School of Mechanical Systems EngineeringChonnam National UniversityGwangjuKorea

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