Mechanism of cell configuration affecting dynamic mechanical properties of metal honeycombs

Hu Ling-ling; Jiang Ling

doi:10.11883/1001-1455(2014)01-0041-06

Volume 34 Issue 1

Mar. 2014

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Hu Ling-ling, Jiang Ling. Mechanism of cell configuration affecting dynamic mechanical properties of metal honeycombs[J]. Explosion And Shock Waves, 2014, 34(1): 41-46. doi: 10.11883/1001-1455(2014)01-0041-06

Citation:

Hu Ling-ling, Jiang Ling. Mechanism of cell configuration affecting dynamic mechanical properties of metal honeycombs[J]. Explosion And Shock Waves, 2014, 34(1): 41-46. doi: 10.11883/1001-1455(2014)01-0041-06

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Mechanism of cell configuration affecting dynamic mechanical properties of metal honeycombs

doi: 10.11883/1001-1455(2014)01-0041-06

Hu Ling-ling^,,
Jiang Ling

Department of Applied Mechanics and Engineering, School of Engineering, Sun Yat-sen University, Guangzhou 510275, Guangdong, China

Funds: Supported by the National Natural Science Foundation of China (11172335, 10802100)

Received Date: 2012-08-20
Rev Recd Date: 2012-11-17
Publish Date: 2014-01-25

Abstract

Abstract

The in-plane dynamic behaviors of metal honeycombs filled by cells with various configurations and arrangements are studied by the finite element method using ANSYS/LS-DYNA.The deformation modes, crushing strength and energy-absorption ability are compared among these honeycombs while controlling their relative density and the impact velocity as uniform.It is shown that different cell configurations result in different stress states within the cell walls during the cells'collapse process, which thus influence the macroscopic mechanical properties of the honeycombs.According to the cell-walls'stress state, the involved honeycombs are divided into tow groups:membrane-dominated honeycombs and bending-dominated honeycombs.The results show that most of the absorbed energy of the honeycomb is transferred into the internal energy needed by the deformation.The percentage of the internal energy to the total absorbed energy is much more for the membrane-dominated honeycombs.The buckling of the cell-walls results in obvious oscillation in the stress-strain curves of the membrane-dominated honeycombs.The cell-walls in the membrane-dominated honeycombs will dissipate more internal energy during deformation, resulting in higher crushing strength and higher energy absorption ability than those of the bending-dominated ones.
- solid mechanics,
- energy absorption,
- impact,
- honeycomb,
- cell configuration,
- crushing strength

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References(12)

References

[1]	Gibson L J, Ashby M F. Cellular solids: Structure and properties[M]. 2nd ed. Cambridge, UK: Cambridge University Press, 1997: 99-158.
[2]	胡玲玲, 陈依骊.三角形蜂窝在面内冲击荷载下的力学性能[J].振动与冲击, 2011, 30(5): 226-229. doi: 10.3969/j.issn.1000-3835.2011.05.047 Hu Ling-ling, Chen Yi-li. Mechanical properties of triangular honeycombs under in-plane impact loading[J]. Journal of Vibration and Shock, 2011, 30(5): 226-229. doi: 10.3969/j.issn.1000-3835.2011.05.047
[3]	Qiu X M, Zhang J, Yu T X. Collapse of periodic planar lattices under uniaxial compression, part II: Dynamic crushing based on finite element simulation[J]. International Journal of Impact Engineering, 2009, 36(10/11): 1231-1241.
[4]	Hu L L, Yu T X, Gao Z Y, et al. The inhomogeneous deformation of polycarbonate circular honeycombs under inplane compression[J]. International Journal of Mechanical Sciences, 2008, 50(7): 1224-1236. doi: 10.1016/j.ijmecsci.2008.03.004
[5]	Zou Z, Reid S R, Tan P J, et al. Dynamic crushing of honeycombs and features of shock fronts[J]. International Journal of Impact Engineering, 2009, 36(1): 165-176. doi: 10.1016/j.ijimpeng.2007.11.008
[6]	Hu L L, Yu T X. Dynamic crushing strength of hexagonal honeycombs[J]. International Journal of Impact Engineering, 2010, 37(5): 467-474. doi: 10.1016/j.ijimpeng.2009.12.001
[7]	Ruan D, Lu G, Wang B, et al. In-plane dynamic crushing of honeycombs: A finite element study[J]. International Journal of Impact Engineering, 2003, 28(2): 161-182. doi: 10.1016/S0734-743X(02)00056-8
[8]	胡玲玲, 尤帆帆.铝蜂窝的动态力学性能及影响因素[J].爆炸与冲击, 2012, 32(1): 23-28. doi: 10.3969/j.issn.1001-1455.2012.01.004 Hu Ling-ling, You Fan-fan. Dynamic mechanical properties of aluminum honeycomb and its effect factors[J]. Explosion and Shock Waves, 2012, 32(1): 23-28. doi: 10.3969/j.issn.1001-1455.2012.01.004
[9]	Hu L L, You F F, Yu T X. Crushing strength of honeycombs with various cell wall angles[J]. Materials Research Innovations, 2010, 15(s1): 155-157.
[10]	Liu Y, Zhang X C, The influence of cell micro-topology on the in-plane dynamic crushing of honeycombs[J]. International Journal of Impact Engineering, 2009, 36(1): 98-109.
[11]	张新春, 刘颖, 章梓茂.组合蜂窝材料面内冲击性能的研究[J].工程力学, 2009, 26(6): 220-225. http://www.cnki.com.cn/Article/CJFDTotal-GCLX200906039.htm Zhang Xin-chun, Liu Ying, Zhang Zi-mao. Research on dynamic properties of suppercell honeycomb structures under in-plane impact loading[J]. Engineering Mechanics, 2009, 26(6): 220-225. http://www.cnki.com.cn/Article/CJFDTotal-GCLX200906039.htm
[12]	胡玲玲, 余同希.惯性效应对蜂窝能量吸收性能的影响[J].兵工学报, 2009, 30(增刊2): 144-147. Hu Ling-ling, Yu Tong-xi. Influence of inertia effect on the energy absorption of hexagonal honeycombs[J]. Acta Armamentarii, 2009, 30(suppl 2): 144-147.