Investigation into Characteristics of Bending Stiffness and Failure for ISB Panel

ISB 판넬의 굽힘강성 및 파손특성에 관한 연구

  • 안동규 (조선대학교 기계공학과) ;
  • 이상훈 (조선대학교 일반대학원 기계공학과) ;
  • 김민수 (조선대학교 일반대학원 기계공학과) ;
  • 한길영 (조선대학교 기계공학과) ;
  • 정창균 (한국과학기술원 기계공학과 대학원) ;
  • 양동열 (한국과학기술원 기계공학과)
  • Published : 2005.09.01

Abstract

The objective of this research works is to investigate into characteristics of bending stiffness and failure for the ISB ultra-lightweight panel with internally structured material. The expanded metal with a crimped pyramid shape and woven metal are employed as an internally structured material. Through three-points bending test, the force-displacement curve and failure shape are obtained to examine the deformation pattern, characteristic data, such as maximum load, displacement at maximum load, etc, and failure pattern of the ISB panel. In addition, the influence of design parameters fur ISB panel on the specific stiffness, the specific stiffness per unit width, failure mode and failure map has been found. Finally, it has been shown that ISB containing expand metal with the crimped pyramidal shape is prefer to that containing woven metal from the view point of optimal design for ISB panel.

Keywords

References

  1. Evans, A. G., Hutchinson, J. W. and Ashby, M. F., 'Multi functionality of Cellular Metal Systems,' Progress in Materials Science, Vol. 43, pp. 171 - 221, 1999 https://doi.org/10.1016/S0079-6425(98)00004-8
  2. Wadley, H. N. G., 'Cellular Metals Manufacturing,' Advanced Engineering Materials, Vol. 4, No. 10, pp. 726 - 733, 2002 https://doi.org/10.1002/1527-2648(20021014)4:10<726::AID-ADEM726>3.0.CO;2-Y
  3. Wadley, H. N. G., Fleck, A. F. and Evans, A. G., 'Fabrication and Structural Performance of Periodic Cellular Metal Sandwich Structures,' Composites Science and Technology, Vol. 63, pp. 2343 - 733, 2003 https://doi.org/10.1016/S0266-3538(03)00266-5
  4. Wang, A. -J. and McDowel, D. L., 'Optimization of a Metal Honeycomb Sandwich Beam-bar Subjected to Torsion and Bending,' International Journal of Solids and Structures, Vol. 40, pp. 2085 - 2099, 2003 https://doi.org/10.1016/S0020-7683(03)00033-7
  5. Liu, J. S. and Lu, T. J., 'Multi-objective and Multiloading Optimization of Ultralightweight Materials,' International Journal of Solids and Structures, Vol. 41, pp.619-635,2004 https://doi.org/10.1016/j.ijsolstr.2003.10.003
  6. Chung, J. G., Yoon, S. J., Sung, T. Y., Yang, D. Y. and Ahn, D. G., 'Ultra Light Inner Structured and Bonded Metal Panel Made of the Metallic Pyramidal Sturcture,' Proceeding of KSPE Spring Annual Meeting 2004, pp. 928-931, 2004
  7. Chung, J. G., Yoon, S. J., Sung, T. Y., Yang, D. Y. and Ahn, D. G., 'Fabrication and Static Bending Test in Ultra Light Inner Structured and Bonded (ISB) Panel Containing Repeated Inner Pyramidal Structure,' Proceeding of KSPE Autumn Annual Meeting 2004, pp. 483-486, 2004
  8. Ahn, D. G., Lee, S. H., Kim, M. S., Hahn, G. Y., Jung, C. G. and Yang, D. Y., 'Mechanical Properties of CSP IN sheet metal and development of a tensile test method for woven wire structured materials,' Proceedings of the KSPE Spring Annual Meeting, pp. 977-980, 2004
  9. Dilthey, U., Kopp, R., Hohmeier, P., Beiss, P., Figueredo, E. L., EI-Magd, E. and Kranz, A., 'Development of Porous Steel Structures for Steam Turbines,' Advanced Engineering Materials, Vol. 3, No.3, pp. 111 - 119, 2001 https://doi.org/10.1002/1527-2648(200103)3:3<111::AID-ADEM111>3.0.CO;2-Z
  10. Chiras, S., Mumm, D. R., Evans, A. G., Wicks, N., Hutchinson, J. W., Dharmasena, K., Wadley, H. N. G. and Fitcher, S., 'The Structural Performance of Nearoptimized Truss Core Panels,' International Journal of Solids and Structures, Vol. 39, pp. 4093- 4115, 2002 https://doi.org/10.1016/S0020-7683(02)00241-X
  11. Deshpande, V. S. and Fleck, N. A., 'Collapse of Truss Core Sandwich Beams in 3-Point Bending,' International Journal of Solids and Structures, Vol. 39, pp. 6275 - 6305, 2001 https://doi.org/10.1016/S0020-7683(01)00103-2
  12. Wang, J., Evans, A. G., Dharmasena, K. and Wadley, H. N. G., 'On the Performance of Truss Panels with Kagome Cores,' International Journal of Solids and Structures, Vol. 40, pp. 6981 - 6988, 2003 https://doi.org/10.1016/S0020-7683(03)00349-4
  13. Kang, K., Jeon, G., Nah, S., Ju, B. and Hong, N., 'A New Way to Manufacture Ultra Light Metal Structures,' Tras. of the Korean Society of Mechanical Engineers, Vol. 28, No.3, pp. 296 - 303, 2004 https://doi.org/10.3795/KSME-A.2004.28.3.296
  14. Zok, F. W., Waltner, S. A., Wei, Z., Rathbun, H. J., McMeeking, R. M. and Evans, A. G., 'A Protocol of Characterizing the Structural Performance of Metallic Sandwich Panels: Application to Pyramidal Truss Cores, ' International Journal of Solids and Structures, Vol. 41, pp. 6249- 6271, 2004 https://doi.org/10.1016/j.ijsolstr.2004.05.045
  15. Wallach, J. C. and Gibson, L. J., 'Mechanical Behavior of a Three-dimensional Truss Material,' International Journal of Solids and Structures, Vol. 38, pp. 7181-7196, 2001 https://doi.org/10.1016/S0020-7683(00)00400-5
  16. Bart-Smith, H., Hutchinson, J. W. and Evans, A. G., 'Measurement and Analysis of the Structural Performance of Cellular Metal Sandwich Construction,' International Journal of Mechanical Sciences, Vol. 43, pp. 1945-1963, 2001 https://doi.org/10.1016/S0020-7403(00)00070-9