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딤플형 내부구조 금속 샌드위치 판재의 제작 및 정적 굽힘 실험
Fabrication of Metallic Sandwich Plates with Inner Dimpled Shell Structure and Static Bending Test

성대용   (한국과학기술원 기계공학과UU0001375  ); 정창균   (한국과학기술원 기계공학과UU0001375  ); 윤석준   (한국과학기술원 기계공학과UU0001375  ); 이상훈   (조선대학교 기계공학과UU0001180  ); 안동규   (조선대학교 기계공학과UU0001180  ); 양동열   (한국과학기술원 기계공학과UU0001375  );
  • 초록

    Metallic sandwich plates with various inner cores have important new features with not only ultra-light material characteristics and load bearing function but also multifunctional characteristics. Because of production possibility on the large scale and a good geometric precision, sandwich plates with inner dimpled shell structure from a single material have advantages as compared with other solid sandwich plates. Inner dimpled shell structures can be fabricated with press or roll forming process, and then bonded with two face sheets by multi-point resistance welding or adhesive bonding. Elasto-plastic bending behavior of sandwich plates have been predicted analytically and measured. The measurements have shown that elastic perfectly plastic approximation can be conveniently employed with less than 10% error in elastic stiffness, collapse load, and energy absorption. The dominant collapse modes are face buckling and bonding failure after yielding. Sandwich plates with inner dimpled shell structure can absorb more energy than other types of sandwich plates during the bending behavior.


  • 주제어

    금속 샌드위치 판재 .   딤플형 내부구조 .   제작 공정 .   정적 굽힘 실험.  

  • 참고문헌 (13)

    1. Waldley, H. N. G, 2003, 'Fabrication and Structural Performance of Periodic Cellular Metal Sandwich Structures,' Compos. Sci. Technol., Vol. 63, pp. 2331-2343 
    2. Ashby, M. F., Evans, A. G, Fleck, N. A., Gibson, L. J., Hutchinson, J. W., Wadley, H. G N., 2000, 'Metal Foams: a Design Guide,' Butterworth-Heinemann, Boston 
    3. Wicks, N., Hutchinson, J. W., 2001, 'Optimal Truss Plates,' International Journal of Solids and Structures, Vol.38, pp. 5165-5183 
    4. Zok, F. W., Waltner, S. A., Wei, Z., Rathbun, H. J., McMeeking, R. M., Evans, A. G, 2004, 'A Protocol for Characterizing the Structural Performance of Metallic Sandwich Panels: Application to Pyramidal Truss Cores,' International Journal of Solids and Structures, Vol. 40, pp. 6249-6271 
    5. Lim, J. H., Nah, S. J, Koo, M. H., Kang, K. J., 2005, 'Compressive and Bending Behavior of Sandwich Panels with Octet Truss Core Fabricated from Wires,' J. of the Korean Society of Mechanical Engineers, Vol. 29, No. 3, pp. 470-476     
    6. Kang, K. J., Jeon, G P., Nab, S. J., Ju, B. S., 2004, 'A New Way to Manufacture Ultra Light Metal Structures,' J. of the Korean Society of Mechanical Engineers, Vol. 28, No. 3, pp. 296-303     
    7. Kang, K. J., Jeon, G P., Nab, S. J., Ju, B. S., 2004, 'A New Way to Manufacture Ultra Light Metal Structures,' J. of the Korean Society of Mechanical Engineers, Vol. 28, No. 3, pp. 296-303     
    8. Jung, C. G, Yoon, S. J., Yang D. Y., Lee, S. M., Na, S. J., Lee, S. H., Ahn D. G, 2005, 'Basic Study in Fabrication and Mechanical Characteristics of Ultra Light Inner Structured and Bonded(ISB) Panel Containing Perpendicularly Woven Metal,' Journal of the Korea Society of Precision Engineering, Vol. 22, No .5, pp. l52-l58     
    9. Ahn, D. G, Lee, S. H., Kim, M. S., Hahn, G. Y., Jung, C. G, Yang, D. Y., 2004, 'Investigation into Characteristics of Bending Stiffness and Failure for ISB Panel,' Conference of the Korea Society of Precision Engineering, autumn, pp. 1274-1277 
    10. Seong, D. Y. Jung, C. G, Yoon, S. J., Yang, D. Y., 2005, 'Optimal Design of Metallic Sandwich Plates with Inner Dimpled Shell Subjected to 3-Point Bending,' Conference of the Korea Society of Precision Engineering, spring, pp. 702-705 
    11. Li, M. Z., Cai, Z. Y., Sui, Z., Yan, Q. G., 2002, 'Multi-Point Forming Technology for Sheet Metal,' Journal of Materials Processing Technology, Vol. 129, pp. 333-338 
    12. ASTM, 1995, 'Standard Test Method for Semi-Guided Bend Test for Ductility of Metallic Materials,' E270 
    13. Deshpande, V. S., Fleck, N. A., 2001, 'Collapse of Truss Core Sandwich Beams in 3-Point Bending,' International Journal of Solids and Structures, Vol. 38, pp. 6275-6305 
  • 이 논문을 인용한 문헌 (4)

    1. Seong Dae-Yong ; Jung Chang-Gyun ; Yoon Seok-Joon ; Ahn Dong-Gyu ; Yang Dong-Yol 2006. "Formulation of Optimal Design Parameters and Failure Map for Metallic Sandwich Plates with Inner Dimpled Shell Structure Subject to Bending Moment" 한국정밀공학회지 = Journal of the Korean Society of Precision Engineering, 23(8): 127~136     
    2. Ahn, Dong-Gyu ; Moon, Gyung-Jae ; Jung, Chang-Gyun ; Yang, Dong-Yol 2007. "Variation of Impact Characteristics of ISB Panels with a Pyramidal Inner Structure According to Joining Technologies" 한국정밀공학회지 = Journal of the Korean Society of Precision Engineering, 24(9): 110~118     
    3. Ahn, Jun-Su ; Kim, Jong-Hwa ; Na, Suck-Joo ; Lim, Ji-Ho 2009. "A Study on Large Area Roll Projection Welding for Metallic Sandwich Plate : Part 1 - Process Monitoring" 大韓溶接·接合學會誌 = Journal of the Korean Welding and Joining Society, 27(3): 85~91     
    4. Ahn, Dong-Gyu ; Nam, Gyung-Heum ; Jung, Chang-Gyun ; Yang, Dong-Yol 2009. "Estimation of Young's and Shear Moduli of a Core in ISB Panel with Woven Metal as Inner Structures" 한국정밀공학회지 = Journal of the Korean Society of Precision Engineering, 26(11): 116~123     

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