期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

负泊松比蜂窝抗冲击性能分析 被引量：24

DYNAMIC CRUSHING PERFORMANCE ANALYSIS FOR AUXETIC HONEYCOMB STRUCTURE
下载PDF
导出
摘要 对一种新型蜂窝结构-负泊松比多凹角蜂窝及凹角蜂窝的面内抗冲击性能进行了系统分析。首先利用有限元软件Ansys/LS-DYNA分析了多凹角蜂窝及凹角蜂窝结构在不同速度冲击荷载作用下的变形模态,揭示了凹角蜂窝结构特有的负泊松比效应对提高其抗冲击强度的作用机制;随后根据经典理论模型,得出凹角蜂窝结构动力学强度的经验公式,与有限元结果的对比分析验证了所得理论经验公式的有效性,同时凹角蜂窝较传统正六边形蜂窝结构更高的动力学强度揭示了凹角蜂窝结构更优的吸能效果。 The in-plane dynamic crushing behavior of a new honeycomb structure-the multi-re-entrant honeycomb and reentrant honeycomb topology possessing negative Poisson＇ s ratio was analyzed here. Firstly the finite element method of ANSYS/ LS-DYNA was applied to examine the deformation modes of multi-re-entrant honeycomb and re-entrant honeycomb under different impact loads, where the physical mechanism for the auxetie effect on improving the dynamic crushing strength is revealed. Then the empirical formula of the dynamic crushing strength was deduced based on the classical theory model, where comparisons with the finite element results revealed the effectiveness of the proposed empirical formula. Higher dynamic crushing strength reveals that the re-entrant honeycomb possesses better energy absorption ability than conventional hexagon topology due to its antitraditional deformation mechanism.
作者 侯秀慧 尹冠生 HOU XiuHui YIN GuanSheng(School of Civil Engineering, Chang＇ an University, Xi＇ an 710064, China School of Science, Chang＇ an University, Xi＇ an 710064, China)
机构地区 长安大学建筑工程学院 长安大学理学院
出处 《机械强度》 CAS CSCD 北大核心 2016年第5期905-910,共6页 Journal of Mechanical Strength
基金 国家自然科学基金(11402035) 中国博士后科学基金(2013M540724) 陕西省博士后科研项目资助~~
关键词 多凹角蜂窝 有限元模拟 负泊松比 动力学强度 经验公式 Multi-re-entrant honeycomb Finite element simulation Negative Poisson＇ s ratio Dynamic crushing strength Empirical formula
分类号 TQ323.41 [化学工程—合成树脂塑料工业]
  • 相关文献

参考文献18

  • 1翟光,杨小平,梁斌,李成.基于等效理论的多夹心层蜂窝板模态分析[J].机械强度,2007,29(3):517-520. 被引量：15
  • 2Bezazi A, Scarpa F, Remillat C. A Novel Centresymmetric Honeycomb Composite Structure [ J]. Composite Structures, 2005, 71 : 356-364.
  • 3Scarpa F, Blain S, Lew T, et al. Elastic Buckling of Hexagonal Chiral Cell Honeycombs [ J]. Composites A: Applied Science and Manufacturing, 2007, 38 (2): 380-389.
  • 4Grima J N, Fan-ugia P S, Gatt R, et al. On the auxetic properties of rotating rhombi and parallelograms: A preliminary investigation. [J]. Physica Status Solidi, 2008, 245 (3) : 521-529.
  • 5Huang X, Blackburn S. Developing a new processing route to manufacture honeycomb ceramics with negative Poisson' s ratio [ J]. Key Engineering Materials, 2002, 206 : 201-204.
  • 6Lakes R S, Elms K. Indentability of Conventional and Negative Poisson' s Ratio Foams [ J]. Journal of Composite Materials, 1993, 27 : 1193-1202.
  • 7Lakes R S. Foam Structures with a Negative Poisson' s Ratio [ J]. Science, 1987, 235 : 1038-1040.
  • 8Scarpa F, Smith F C. Passive and MR Fluid-Coated Auxetic PU Foam-Mechanical, Acoustic and Electromagnetic Properties. [ J ]. Journal of Intelligent Material Systems and Structures 2004, 15: 973 -979.
  • 9Scarpa F, Ciffo L G, Yates J R. Dynamic properties of high structural integrity auxetic open cell foam [ J ]. Smart Materials and Structures, 2004, 13 : 49-56.
  • 10Evans K E. Tailoring the negative Poisson' s ratio [ J ]. Chemistry and Industry, 1990, 20: 654-657.

二级参考文献18

  • 1卢子兴,赵亚斌.一种有负泊松比效应的二维多胞材料力学模型[J].北京航空航天大学学报,2006,32(5):594-597. 被引量：25
  • 2Gibson L J,Ashby M F,Schajer G S.The mechanics of two-dimension cellular matericals.Proc R Soc,1982,A 382:25～42.
  • 3Holt P J,Webber J P H.Exact solution to some honeycomb sandwich beam,plate,and shell problems.J Strain Analysis,1982,17(1):1～8.
  • 4Gibson L J, Ashby M F. Cellular solids: Structure and properties[M]. Cambridge: Cambridge University Press, 1997.
  • 5Lakes R S. Deformation mechanisms in negative Poisson's ratio materials: Structural aspects[J].Journal of Mate- rials Science: 1991,26(9) :2287-2292.
  • 6Choi J B, Lakes R S. Analysis of elastic modulus of conventional foams and of re-entrant foam materials with a neg- ative Poisson' s ratio[J].International Journal of Mechanical Sciences, 1995, 27 (1) :51-59.
  • 7Overaker D W, Cuitino A M, Langrana N A. Effects of morphology and orientation on the behavior of two-dimen- sional hexagonal foams and application in a re-entrant foam anchor model[J]. Mechanics of Materials, 1998,29 (1) : 43-52.
  • 8Wan H, Ohtaki H, Kotosaka S, et al. A study of negative Poisson's ratios in auxetic honeycombs based on a large deflection model[J]. European Journal of Mechanics: A/Solids, 2004,23(1) :95-106.
  • 9Grima J N, Gatt R, Ravirala N, et al. Negative Poissons ratios in cellular foam materials[J]. Materials Science and Engineering: A, 2006,423(1/2) :214-218.
  • 10Horrigan E J, Smith C W, Scarpa F L, et al. Simulated optimisation of disordered structures with negative Pois- sons ratios[J]. Mechanics of Materials, 2009,41(8):919-927.

共引文献63

同被引文献119

引证文献24

二级引证文献89

机械强度
2016年 第5期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部