Acta Mechanica Solida Sinica

, Volume 23, Issue 4, pp 324–335 | Cite as

Elastic-Plastic Dynamic Response of Fully Backed Sandwich Plates under Localized Impulsive Loading

Article

Abstract

An analytical model is developed to assess the elastic-plastic dynamic response of fully backed sandwich plates under localized impulse load. The core is modeled as an elastic-perfectly plastic foundation. The top face sheet is treated as an individual plate resting on the foundation. The elastic-plastic analysis for the top face sheet is based on a minimum principle in dynamic plasticity associated with the finite difference technique. The effects of spatial and temporal distributions of the impulsive loading on the dynamic response of sandwich plates are discussed. The model can be used to predict the impulse-induced local effect on fully backed sandwich plates.

Key words

sandwich plate elastic plastic localized impulse plastic dissipation 

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References

  1. [1]
    Nilsson, E. and Nilsson, A.C., Prediction and measurement of some dynamic properties of sandwich structures with honeycomb and foam cores. Journal of Sound and Vibration, 2002, 251(3): 409–430.CrossRefGoogle Scholar
  2. [2]
    Fan, H.L. and Yang, W., An equivalent continuum method of lattice structures. Acta Mechanic Solida Sinica, 2006, 19(2): 103–113.CrossRefGoogle Scholar
  3. [3]
    Yang, M.J. and Qiao, P.Z., Nonlinear impact analysis of fully backed composite sandwich structures. Composites Science and Technology, 2005, 65(3–4): 551–562.CrossRefGoogle Scholar
  4. [4]
    Zhu, L., Transient deformation modes of square plates subjected to explosive loadings. International Journal of Solids and Structure, 1996, 33(3): 301–304.CrossRefGoogle Scholar
  5. [5]
    Yang, J.L. and Xi, F., Experimental and theoretical study of free-free beam subjected to impact at any cross-section along its span. International Journal of Impact Engineering, 2003, 28(7): 761–781.CrossRefGoogle Scholar
  6. [6]
    Xi, F. and Fang, Y.L., Finite deformation dynamic equations of a thick rectangular plate-on-foundation. Journal of Shandong Institute of Architecture and Engineering, 2001, 16(3): 6–12.Google Scholar
  7. [7]
    Lee, L.H.N. and Ni, C.M., A minimum principle in dynamics of elastic-plastic continua at finite deformation. Archives of Mechanics, 1973, 25(3): 457–468.MATHGoogle Scholar
  8. [8]
    Lee, L.H.N. and Horng, J.T., Inelastic Response of Ring-stiffened Cylindrical Shells to External Pressure Shock Waves. AD-A007329, 1975.Google Scholar
  9. [9]
    Deshpande, V.S. and Fleck, N.A., Collapse of truss core sandwich beams in 3-point bending. International Journal of Solids and Structures, 2001, 38(36–37): 6275–6305.CrossRefGoogle Scholar
  10. [10]
    Rubino, V., Deshpande, V.S. and Fleck, N.A., The dynamic response of clamped rectangular Y-frame and corrugated core sandwich plates. European Journal of Mechanics A/Solids, 2009, 28(1): 14–24.CrossRefGoogle Scholar
  11. [11]
    Zhu, F., Zhao, L.M., Lu, G.X. and Wang, Z.H., Deformation and failure of blast-loaded metallic sandwich panels-Experimental investigations. International Journal of Impact Engineering, 2008, 35(8): 937–951.CrossRefGoogle Scholar
  12. [12]
    Zhu, F., Zhao, L.M., Lu, G.X. and Gad, E., A numerical simulation of the blast impact of square metallic sandwich panels. International Journal of Impact engineering, 2009, 36(5): 687–699.CrossRefGoogle Scholar
  13. [13]
    Hutchinsion, J.W. and Xue, Z.Y., Metal sandwich plates optimized for pressure impulses. International Journal of Mechanical Sciences, 2005, 47(4–5): 545–569.CrossRefGoogle Scholar
  14. [14]
    Qin, Q.H. and Wang, T.J., An analytical solution for the large deflections of a slender sandwich beam with a metallic foam core under transverse loading by a flat punch. Composite Structures, 2009, 88(4): 509–518.CrossRefGoogle Scholar
  15. [15]
    Zheng, H.Y., Wu, L.Z., Ma, L. and Wang, X.Z., Research on impulse-resistant performance of sandwich panels with Kagome truss core. Engineering Mechanics, 2007, 24(8): 86–92.Google Scholar

Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2010

Authors and Affiliations

  1. 1.The Solid Mechanics Research CenterBeijing University of Aeronautics and AstronauticsBeijingChina

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