Out of Plane Punch of Aluminum Hexagonal Honeycomb Using Flat Nose and Spherical Projectiles

Document Type : Research Article

Authors

Mechanical Engineering Department, Amirkabir University of Technology, Tehran, Iran

Abstract

The energy absorption capacity of metal hexagonal honeycomb under out of plane local quasi-static loading is investigated, experimentally. Effects of geometrical parameters, such as the cell size and wall thickness of the honeycomb, projectile shape and projectile diameter, specimen height, and the loading speed on the perforated zone and the absorbed energy are studied. The perforated zone of the honeycomb has not perfectly the same shape of the projectile, but it can be assumed as a skew polygon or ellipse, extended in the direction of the honeycomb dual walls. Results show that changing the projectile shape from a flat nose to a sphere decreases the absorbed energy approximately to the half value. Multiplying the projectile diameter by two increases the mean crushing load of the metal hexagonal honeycomb less than four times. On the other hand, it was shown that the honeycomb local energy absorption capacity is not perfectly independent of sample height and loading speed. Furthermore, based on the modified Wierzbicki’s model in the global loading, a simple theoretical model for the estimation of the mean crushing load of a metal hexagonal honeycomb loaded by a flat projectile is presented. Good agreement between the theoretical and experimental results is illustrated. 

Keywords

Main Subjects


[1] W. Goldsmith, J.L. Sackman, An experimental study of energy absorption in impact on sandwich plates, International Journal of Impact Engineering, 12(2) (1992) 241-262.
[2] E. Wu, W.-S. Jiang, Axial crush of metallic honeycombs, International Journal of Impact Engineering, 19(5-6) (1997) 439-456.
[3] G. Liaghat, A. Alavinia, A comment on the axial crush of metallic honeycombs by Wu and Jiang, International Journal of Impact Engineering, 28(10) (2003) 1143-1146.
[4] J. Klintworth, W. Stronge, Plane punch indentation of a ductile honeycomb, International journal of mechanical sciences, 31(5) (1989) 359-378.
[5] S.A. Galehdari, M. Kadkhodayan, S. Hadidi-Moud, Low velocity impact and quasi-static in-plane loading on a graded honeycomb structure; experimental, analytical and numerical study, Aerospace Science and Technology, 47 (2015) 425-433.
[6] W. Goldsmith, D.L. Louie, Axial perforation of aluminum honeycombs by projectiles, International Journal of Solids and Structures, 32(8-9) (1995) 1017-1046.
[7] F. Cote, V. Deshpande, N. Fleck, A. Evans, The out-of-plane compressive behavior of metallic honeycombs, Materials Science and Engineering: A, 380(1-2) (2004) 272-280.
[8] S. Heimbs, P. Middendorf, M. Maier, Honeycomb sandwich material modeling for dynamic simulations of aircraft interior components, in:  9th international LS-DYNA users conference, 2006, pp. 1-13.
[9] A.A. Nia, S. Razavi, G. Majzoobi, Ballistic limit determination of aluminum honeycombs—experimental study, Materials Science and Engineering: A, 488(1-2) (2008) 273-280.
[10] T. Asada, Y. Tanaka, N. Ohno, Two-scale and full-scale analyses of elastoplastic honeycomb blocks subjected to flat-punch indentation, International Journal of Solids and Structures, 46(7-8) (2009) 1755-1763.
[11] M. Khoshravan, M.N. Pour, Numerical and experimental analyses of the effect of different geometrical modelings on predicting compressive strength of honeycomb core, Thin-Walled Structures, 84 (2014) 423-431.
[12] Z. Wei, V. Deshpande, A. Evans, K. Dharmasena, D. Queheillalt, H. Wadley, Y. Murty, R. Elzey, P. Dudt, Y. Chen, The resistance of metallic plates to localized impulse, Journal of the Mechanics and Physics of Solids, 56(5) (2008) 2074-2091.
[13] G. Petrone, S. Rao, S. De Rosa, B. Mace, F. Franco, D. Bhattacharyya, Behaviour of fibre-reinforced honeycomb core under low velocity impact loading, Composite Structures, 100 (2013) 356-362.
[14] A.P. Meran, T. Toprak, A. Muğan, Numerical and experimental study of crashworthiness parameters of honeycomb structures, Thin-Walled Structures, 78 (2014) 87-94.
[15] M.Z. Mahmoudabadi, M. Sadighi, Experimental investigation on the energy absorption characteristics of honeycomb sandwich panels under quasi-static punch loading, Aerospace Science and Technology, 88 (2019) 273-286.
[16] S. Wang, H. Wang, Y. Ding, F. Yu, Crushing behavior and deformation mechanism of randomly honeycomb cylindrical shell structure, Thin-Walled Structures, 151 (2020) 106739.
[17] T. Wierzbicki, Crushing analysis of metal honeycombs, International Journal of Impact Engineering, 1(2) (1983) 157-174.
[18] W. Abramowicz, T. Wierzbicki, Axial crushing of multicorner sheet metal columns,  (1989).
[19] M.Z. Mahmoudabadi, M. Sadighi, A study on metal hexagonal honeycomb crushing under quasi-static loading, World Academy of Science, Engineering and Technology (53),  (2009) 677-681.
[20] M.Z. Mahmoudabadi, M. Sadighi, A theoretical and experimental study on metal hexagonal honeycomb crushing under quasi-static and low velocity impact loading, Materials Science and Engineering: A, 528(15) (2011) 4958-4966.
[21] Z. Li, T. Wang, Y. Jiang, L. Wang, D. Liu, Design-oriented crushing analysis of hexagonal honeycomb core under in-plane compression, Composite Structures, 187 (2018) 429-438.
[22] M.Z. Mahmoudabadi, M. Sadighi, A study on the static and dynamic loading of the foam filled metal hexagonal honeycomb–Theoretical and experimental, Materials Science and Engineering: A, 530 (2011) 333-343.