针对正六边形、Kagome和正三角形蜂窝,通过在孔壁表面附着弱材料层,提出了一种多层级蜂窝材料,并采用解析计算和数值计算的方法,围绕孔壁缺失这种最恶劣的缺陷类型,对蜂窝的体模量和剪切模量进行分析.结果表明,附着软层的多层级蜂窝材料比传统蜂窝抗缺陷性能提高,表现出较低的缺陷敏感性.在附着层的杨氏模量和原蜂窝材料比模量相同时,尽管附着层的杨氏模量比蜂窝母材低一个量级,但在附着层厚度是原蜂窝壁厚两倍时,正六边形和Kagome蜂窝的面内模量对缺陷的敏感性都明显降低.
参考文献
| [1] | Gibson L J,Ashby M F.Cellular solids:structure and properties[M].Cambridge:Cambridge University Press,1999. |
| [2] | 卢天健,何德坪,陈常青,等.超轻多孔金属材料的多功能特性及应用[J].力学进展,2006,36(4):517-535.Lu Tianjian,He Deping,Chen Changqing,et al.The multifunctionality of ultra-light porous metals and their applications[J].Advances in Mechanics,2006,36(4):517-535. |
| [3] | 王博.正交各向异性蜂窝材料多功能优化设计[J].复合材料学报,2008,25(3):202-209.Wang Bo.Optimum design of multi-functional orthotropic honeycomb materials[J].Acta Materiae Compositae Sinica,2008,25(3):202-209. |
| [4] | 王博,王斌,程耿东.Kagome蜂窝夹层平板的多功能优化设计[J].复合材料学报,2007,24(3):109-115.Wang Bo,Wang Bin,Cheng Gengdong.Multifunctional design of sandwich panels with Kagome-like cores[J].Acta Materiae Compositae Sinica,2007,24(3):109-115. |
| [5] | 王博,张雄,徐胜利.2D周期蜂窝结构面内静动态压缩力学行为研究[J].力学学报,2009,41(2):274-281.Wang Bo,Zhang Xiong,Xu Shengli.Mechanical behavior of 2D periodic honeycombs under in-plane uniaxial compression[J].Chinese Journal of Theoretical and Applied Mechanics,2009,41(2):274-281. |
| [6] | Thiel B L,Guess K B,Viney C.Non-periodic lattice crystals in the hierarchical microstructure of spider(major ampullate)silk[J].Biopolymers,1997,41(7):703-719. |
| [7] | Silva M J,Gibson L J.The effects of non-periodic microstructure and defects on the compressive strength of two-dimensional cellular solids[J].International Journal of Mechanical Science,1995,37(11):1161-1177. |
| [8] | Fleck N A,Qiu X.The damage tolerance of elastic-brittle,two-dimensional isotropic lattices[J].Journal of the Mechanics and Physics of Solids,2007,55(3):562-588. |
| [9] | Chen C,Lu T J,Fleck N A.Effect of imperfections on the yielding of two-dimensional foams[J].Journal of the Mechanics and Physics of Solids,1999,47(11):2235-2272. |
| [10] | Chen C,Lu T J,Fleck N A.Effect of inclusions and holes on the stiffness and strength of honeycombs[J].International Journal of Mechanical Science,2001,43(2):487-504. |
| [11] | Symons D D,Fleck N A.The imperfection sensitivity of isotropic two—dimensional elastic lattices[J].Journal of Applied Mechanics,2008,75(5):51101. |
| [12] | Cui X,Zhang Y,Zhao H,et al.Stress concentration in twodimensional lattices with imperfections[J].Acta Mechanica,2011,216(1-4):105-122. |
| [13] | Wicks N,Guest S D.Single member actuation in large repetitive truss structures[J].International Journal of Solids Structures,2004,41(3):965-978. |
| [14] | 寇东鹏,虞吉林,郑志军.随机缺陷对蜂窝结构动态行为影响的有限元分析[J].力学学报,2009,41(6):859-868.Kou Dongpeng,Yu Jilin,Zheng Zhijun.Effect of randomly removing cell walls on the dynamic crushing behaviour of honeycomb structures[J].Chinese Journal of Theoretical and Applied Mechanics,2009,41(6):859-868. |
| [15] | 刘颖,张新春.缺陷分布不均匀性对蜂窝材料面内冲击性能的影响[J].爆炸与冲击,2009,29(3):237-242.Liu Ying,Zhang Xinchun.Effects of inhomogeneous distribution of defects on in-plane dynamic properties of honeycombs[J].Explosion and Shock Waves,2009,29(3):237-242. |
| [16] | 张新春,刘颖.缺陷对金属蜂窝材料面内冲击性能的影响[J].高压物理学报,2012,26(6):645-652.Zhang Xinchun,Liu Ying.Effect of defects in-plane of metal honeycomb on its dynamic impact properties[J].Chinese Journal of High Pressure Physics,2012,26(6):645-652. |
| [17] | 张新春,刘颖,章梓茂.集中缺陷对蜂窝材料面内动力学性能的影响[J].工程力学,2011,28(5):239-244.Zhang Xinchun,Liu Ying,Zhang Zimao.Effects of concentrated defects on the in-plane dynamic properties of honeycombs[J].Engineering Mechanics,2011,28(5):239-244. |
| [18] | Zhang X C,Liu Y,Wang B,et al.Effects of defects on the in-plane dynamic crushing of metal honeycombs[J].International Journal of Mechanical Sciences,2010,52(10):1290-1298. |
| [19] | Zhang K,Duan H,Karihaloo B L,et al.Hierarchical,multilayered cell walls reinforced by recycled silk cocoons enhance the structural integrity of honeybee combs[J].Proceedings of the National Academy of Sciences of the United States of America,2010,107(21):9502-9506. |
| [20] | Fan H L,Jin F N,Fang D N.Mechanical properties of hierarchical cellular materials.Part Ⅰ:analysis[J].Composites Scinece and Technology,2008,68(15):3380-3387. |
| [21] | Karam G N,Gibson L J.Elastic buckling of cylindrical shells with elastic cores—Ⅰ.Analysis[J].International Journal of Solids Structures,1995,32(8):1259-1283. |
| [22] | Karam G N,Gibson L J.Elastic buckling of cylindrical shells with elastic cores—Ⅱ.Experiments[J].International Journal of Solids Structures,1995,32(8):1285-1306. |
| [23] | Obrecht H,Rosenthal B,Fuchs P,et al.Buckling,postbuckling and imperfection-sensitivity:Old questions and some new answers[J].Computational Mechanics,2006,37(6):498-506. |
| [24] | Obrecht H,Fuchs P,Reinicke U,et al.Influence of wall constructions on the load-carrying capability of light-weight structures[J].International Journal of Solids Structures,2008,45(6):1513-1535. |
| [25] | Wang A J,Mcdowell D L.In-plane stiffness and yield strength of periodic metal honeycombs[J].Journal of Engineering Materials and Technology,2004,126(2):137-156. |
| [26] | Hibbett,Karlsson,Sorensen,et al.ABAQUS/Standard:user's manual[M].Pennsylvania:Hibbitt,Karlsson & Sorensen,1998. |
| [27] | Ashby M F.Materials selection in mechanical design (4th Edition)[M].Amsterdam:Elsevier.2011. |
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