将聚氨酯填充到蜂窝纸板的孔隙中制作了聚氨酯蜂窝纸板复合材料,进而对其进行落锤冲击实验.通过落锤实验得到聚氨酯蜂窝纸板复合材料的应力-应变曲线,对影响其动力学性能的复合材料孔径、厚度、横截面尺寸及冲击速率四个因素进行了分析.结果表明:复合材料的动态屈服强度和动态弹性极限随着蜂窝纸芯的孔径、复合材料厚度和横截面积的增大而减小,随着冲击速率的增大而提高.在实验数据的基础上拟合了复合材料的动态本构方程,并对本构方程与实验数据进行了比较,拟合效果较好.
参考文献
[1] | 于成果,李良春.空投安全着陆的实现途径[J].包装工程,2007(10):135-137. |
[2] | WANG Zhi-wei;E Yu-ping .Energy-absorbing properties of paper honeycombs under low and intermediate strain rates[J].PACKAGING TECHNOLOGY AND SCIENCE,2012,25(3):173-185. |
[3] | Zhi-Wei Wang .Mathematical modelling of energy absorption property for paper honeycomb in various ambient humidities[J].Materials & design,2010(9):P.4321. |
[4] | E Yu-ping;WANG Zhi-wei .Effect of relative humidity on energy absorption properties of honeycomb paperboards[J].PACKAGING TECHNOLOGY AND SCIENCE,2010,23(8):471-483. |
[5] | WANG Dong-mei;WANG Zhi-wei .Experimental investigation into the cushioning properties of honeycomb paperboard[J].PACKAGING TECHNOLOGY AND SCIENCE,2010,21(6):309-316. |
[6] | Dong-Mei Wang;Zhi-Wei Wang;Qiang-Hua Liao .Energy Absorption Diagrams Of Paper Honeycomb Sandwich Structures[J].Packaging Technology and Science,2009(2):63-67. |
[7] | 汪亮,孙玲.双真空袋成型法在蜂窝结构拼接工艺中的应用[J].武汉理工大学学报,2009(21):52-55. |
[8] | Hiroaki Nakamoto;Tadaharu Adachi;Wakako Araki .In-plane Impact Behavior Of Honeycomb Structures Randomly Filled With Rigid Inclusions[J].International journal of impact engineering,2009(1):73-80. |
[9] | D.H.Chen;S.Ozaki .Analysis Of In-plane Elastic Modulus For A Hexagonal Honeycomb Core: Effect Of Core Height And Proposed Analytical Method[J].Composite structures,2009(1):17-25. |
[10] | 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. |
[11] | ZHENG Z J;YU J L;LI J R .Dynamic crushing of 2D cellular structure:a finite element study[J].International Journal of Impact Engineering,2005,32(1-4):650-664. |
[12] | SHERWOOD J A;FROST C C .Constitutive modeling and simulation of energy absorbing polyurethane foam[J].Polymer Engineering & Science,1992,32(16):1138-1146. |
[13] | 胡时胜;刘剑飞;王悟 .硬质聚氨酯泡沫塑料本构关系的研究[J].力学学报,1998,30(2):151-156. |
[14] | 卢子兴.聚氨酯泡沫塑料拉伸本构关系及其失效机理的研究[J].航空学报,2002(02):151-154. |
[15] | 谭军,韩旭,刘鑫.某特种车空投着陆过程数值仿真分析与改进[J].包装工程,2010(01):57-61. |
[16] | 林玉亮,卢芳云,王晓燕,赵习金.低密度聚氨酯泡沫压缩行为实验研究[J].高压物理学报,2006(01):88-92. |
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