作者：陈军红, 徐伟芳, 谢若泽, 张方举, 黄西成, 胡文军
作者单位：中国工程物理研究院总体工程研究所, 四川 绵阳 621999
关键词：高硅氧纤维;复合材料;微结构;动态压缩;失效模式
摘要：
为获得高硅氧/酚醛树脂基复合材料动态压缩力学性能以及研究微结构对该种材料力学性能影响，利用分离式霍普金森压杆分别对两种不同微结构的高硅氧/酚醛树脂基复合材料进行动态压缩实验。实验结果发现，在相同应变率下，高硅氧丝/酚醛树脂基复合材料强度高于高硅氧布/酚醛树脂基复合材料。此外，实验结果还显示微结构对材料的失效模式有显著影响，高硅氧丝/酚醛树脂基复合材料显现出一种劈裂的失效模式，而高硅氧布/酚醛树脂基复合材料却发生剪切断裂。进一步通过对其断裂形貌分析指出，高硅氧玻璃纤维的排列方式决定复合材料的断裂模式。
Dynamic compressive properties of two high silica glass/phenolic composites with different microstructures
CHEN Junhong, XU Weifang, XIE Ruoze, ZHANG Fangju, HUANG Xicheng, HU Wenjun
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621999, China
Abstract: In order to obtain the dynamic compressive properties of the high silica glass/phenolic composites and study the effect of microstructure on mechanical properties of this composite.This paper uses the split Hopkinson pressure bar to conduct dynamic compressive tests on the high silica glass/phenolic composites which have two different microstructures.The result shows that under the similar strain rate,the strength of high silica glass fiber/phenolic composite is higher than the high silica glass fabric/phenolic composite.Furthermore,the microstructure has significant effect on the failure mode of this composite.The high silica glass composite has a splitting failure mode,however,the high silica glass fabric composite indicates the shear failure mode.From the analysis on the fracture feature of the sample,it can be concluded that the frature mode of the composite is determined by the orientation of the high silica glass fiber.
Keywords: high silica glass;composites;microstructure;dynamic compression;failure mode
2016, 42(10): 113-118 收稿日期: 2016-4-15;收到修改稿日期: 2016-5-29
基金项目: 国家自然科学基金（11472257，11272300）；中物院总体所创新与发展基金（15cxj19）
作者简介: 陈军红(1987-),男,湖北武汉市人,助理研究员,博士,研究方向为材料与结构冲击动力学。
参考文献
[1] 李铖,仇小伟. 高硅氧玻璃纤维研究现状及前景[J]. 玻璃纤维,2004(4):35-37.
[2] 毕鸿章. 高硅氧玻璃纤维及其应用[J]. 高科技纤维与应用,2003,28(4):36-39.
[3] 王丹勇,陈以蔚,李树虎,等. 纤维复合材料压缩破坏研究进展[J]. 材料科学与工程,2012,30(4):639-643.
[4] CARVALHO N V D, PINHO S T, ROBINSON P. An experimental study of failure initiation and propagation in 2D woven composites under compression[J]. Composites Science and Technology,2011(71):1316-1325.
[5] CHENG J, LI H J, ZHANG S Y, et al. Failure behavior investigation of a unidirectional carbon-carbon composite[J]. Materials and Design,2014(55):846-850.
[6] HAN G, GUAN Z D, LI X, et al. Microscopic progressive damage simulation of unidirectional composite based on the elastic-plastic theory[J]. Journal of Reinforced Plastics and Composites,2015,34(3):232-247.
[7] LI Z, LAMBROS J. Dynamic thermomechanical behavior of fiber reinforced composites[J]. Composites:Part A,2000(31):537-547.
[8] WALTER T R, SUBHASH G, SANKAR B V, et al. Damage modes in 3D glass fiber epoxy woven composites under high rate of impact loading[J]. Composites:Part B,2009(40):584-589.
[9] DAVIES G A O, HITCHINGS D. Impact damage and residual strengths of woven fabric glass/polyester laminates[J]. Composites:Part A,1996(27):1147-1156.
[10] 蒋邦海,张若棋. 动态压缩下一种碳纤维织物增强复合材料的各项异性力学性能实验研究[J]. 复合材料学报,2005, 22(2)::109-115.
[11] 李典森,卢子兴,冯志海. 三维编织复合材料动态压缩性能的实验研究[J]. 第十五届全国复合材料会议论文集(下册),2008:683-686.
[12] 周凯,熊杰,杨斌,等. 三维正交机织复合材料的动态压缩性能[J]. 复合材料学报,2009,26(2):171-175.
[13] 袁秦鲁,李玉龙,李贺军,等. 动态载荷下C/C复合材料的压缩破坏行为[J]. 新型碳材料,2010,25(2):114-118.
[14] RAVICHANDRAN G, SUBHASH G. Critical appraisal of limiting strain rates for compression testing of ceramics in a split Hopkinson pressure bar[J]. American Ceramic Society,1994,77(1):263-267.
