对普碳钢蜂窝夹芯板进行了面内压缩试验,利用贴片法测量了等效弹性模量和泊松比,测出了抗压强度.结果表明:不带面板时,蜂窝芯子的泊松比接近于1.0;带面板时,蜂窝板的泊松比减小到0.33～0.39,其值随面板厚度的增加而减小;等效弹性模量的实测值与计算值之间的相对误差小于7%;抗压强度的实测值与计算值之间的相对误差在0.6%～32%;面内压缩时,普碳钢蜂窝夹芯板的等效弹性模量及抗压强度主要受面板厚度和夹芯厚度的影响,二者均随面板厚度的增加而增大,随夹芯厚度的增加而减小,胞壁厚度和胞壁边长的影响很小.
参考文献
| [1] | Gibson L J;Ashby M F.Cellular solids:structure and properties[M].Cambridge:Cambridge University Press,1997 |
| [2] | 吴鸿遥.合成板夹层板与整体板的强度计算原理[M].北京:国防工业出版社,1989 |
| [3] | 石丸靖男,张耀宏.高速铁道车辆用钎焊铝蜂窝板及其加工[J].国外机车车辆工艺,2001(02):11-17. |
| [4] | 富明慧,尹久仁.蜂窝芯层的等效弹性参数[J].力学学报,1999(01):113-118. |
| [5] | 周祝林.碳纤维复合材料蜂窝夹层结构侧压强度理论计算[J].纤维复合材料,2001(02):29-30. |
| [6] | 周祝林,徐玉珍,孙佩琼.复合材料平板及蜂窝芯综合性能测试与分析[J].纤维复合材料,2002(04):17-20. |
| [7] | S.D.Papka;S.kyriakides .Experiments and full-scale numerical simulations of in-plane crushing of a honeycome[J].Acta materialia,1998(8):2765-2776. |
| [8] | Papka S D;Kyriakides S .In-plane biaxial crushing of honeycombs-Part Ⅰ:analysis[J].International Journal of Solids and Structures,1999,36(29):4397-4423. |
| [9] | A. Honig;W. J. Stronge .In-plane dynamic crushing of honeycomb - Part II: application to impact[J].International Journal of Mechanical Sciences,2002(8):1697-1714. |
| [10] | A. -J Wang;D. L. McDowell .In-Plane Stiffness and Yield Strength of Periodic Metal Honeycombs[J].Journal of engineering materials and technology,2004(2):137-156. |
| [11] | Zhu HX.;Mills NJ. .The in-plane non-linear compression of regular honeycombs[J].International Journal of Solids and Structures,2000(13):1931-1949. |
| [12] | D. Karagiozova;T. X. Yu .Plastic deformation modes of regular hexagonal honeycombs under in-plane biaxial compression[J].International Journal of Mechanical Sciences,2004(10):1489-1515. |
| [13] | D. Ruan;G. Lu;B. Wang;T.X. Yu .In-plane dynamic crushing of honeycombs―a finite element study[J].International journal of impact engineering,2003(2):161-182. |
| [14] | 程军,曾伟明,方如华,张林春.金属蜂窝夹芯板等效弹性模量的实验测试[J].实验力学,2003(01):50-55. |
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