为研究薄面板复合材料蜂窝夹层结构在冲击载荷下的接触力响应和损伤情况,用两种不同质量的冲头对不同面板厚度的复合材料夹层结构进行了多种能量的落锤式冲击试验,并对冲击后的试验件进行了损伤测量.结果表明:冲击能量相对较低时,最大接触力较小,随着冲击能量的增加,最大接触力在增大过程中会出现门槛值,即达到某一值后不再上升.低能量下,冲击损伤表现为面板凹坑和冲击点周围的少量分层,随着冲击能量变大,面板逐渐出现纤维断裂进而被穿透.面板未穿透时,冲头会反弹,接触力-时间曲线的下降段没有台阶,分层区域直径约为冲头直径的1.2倍;面板穿透时,冲头不反弹,接触力-时间曲线下降段出现台阶,分层区域直径约为冲头直径的1.8倍.当最大接触力达到门槛值后,相同冲击能量下,冲头质量越大,冲击持续时间越长,凹坑越深.
参考文献
| [1] | 杜善义.先进复合材料与航空航天[J].复合材料学报,2007(01):1-12. |
| [2] | 伊鹏跃;李真;陈秀华;于哲峰;汪海.基于实体-壳耦合模型的复合材料层压板冲击损伤阻抗优化[J].复合材料学报,2013(3):191-197. |
| [3] | 程小全.复合材料蜂窝夹芯板低速冲击后的压缩[J].北京航空航天大学学报,1998(05):551. |
| [4] | Bing Wang;Lin-Zhi Wu;Li Ma;Ji-Cai Feng.Low-velocity impact characteristics and residual tensile strength of carbon fiber composite lattice core sandwich structures[J].Composites, Part B. Engineering,20114(4):891-897. |
| [5] | M. Klaus;H.-G. Reimerdes;N.K. Gupta.Experimental and numerical investigations of residual strength after impact of sandwich panels[J].International journal of impact engineering,2012:50-58. |
| [6] | Kang KW;Kim HS;Kim MS;Kim JK.Strength reduction behavior of honeycomb sandwich structure subjected to low-velocity impact[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,20080(0):333-335. |
| [7] | Singh A;Davidson B;Eisenberg D;et ah.Barely visible impact damage evaluation of composite sandwich structures[A].,2010:1-7. |
| [8] | Vaidya U K;Nelson S;Sinn B.Processing and high strain rate impact response of multi functional sandwich composites[J].Computers & Structures,200152(3):429-440. |
| [9] | G. Reyes Villanueva;W.J. Cantwell.The high velocity impact response of composite and FML-reinforced sandwich structures[J].Composites science and technology,20041(1):35-54. |
| [10] | J.P. Dear;H. Lee;S.A. Brown.Impact damage processes in composite sheet and sandwich honeycomb materials[J].International journal of impact engineering,20051/4(1/4):130-154. |
| [11] | 谢宗蕻;苏霓;张磊;赵剑;李磊;魏宏艳;王俭;杨胜春.复合材料蜂窝夹芯板低速冲击损伤扩展特性[J].南京航空航天大学学报,2009(1):30-35. |
| [12] | 陈士哲 .蜂窝夹层梁结构在低速冲击下的动力响应研究[D].太原理工大学,2011. |
| [13] | Dongmei Wang.Impact Behavior And Energy Absorption Of Paper Honeycomb Sandwich Panels[J].International journal of impact engineering,20091(1):110-114. |
| [14] | C.Y. Tan;Hazizan Md. Akil.Impact response of fiber metal laminate sandwich composite structure with polypropylene honeycomb core[J].Composites, Part B. Engineering,20123(3):1433-1438. |
| [15] | A.U. Ude;A.K. Ariffin;C.H. Azhari.Impact damage characteristics in reinforced woven natural silk/epoxy composite face-sheet and sandwich foam, coremat and honeycomb materials[J].International journal of impact engineering,2013Aug.(Aug.):31-38. |
| [16] | ASTM D3763-02,Standard test method for high speed puncture properties of plastics using load and displacement sensors[S].Pennylvania:American Society for Testing and Materials,2002. |
| [17] | ASTM D7136M-12,Standard test method for measuring the damage resistance of a fiber-reinforced polymer matrix composite to a drop-weight impact event[S].Pennsylvania:American Society for Testing and Materials,2012. |
| [18] | 余同希;邱信明.冲击动力学[M].北京:清华大学出版社,2011:81-82. |
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