提高硼纤维/环氧复合材料界面抗剪强度的方法
Method of Improving the Interfacial Shear Strength of Bf/Epoxy Resin Composites
摘 要
采用单根硼纤维拔出模型分析了硼纤维拔出过程界面剪切应力的分布:同时设计了一种单纤维拔出试样制备方法,并测试了不同硼纤维/环氧复合材料界面抗剪强度.结果表明：界面脱粘前,在纤维包埋起始端部和包埋末端界面存在剪切应力极大值,纤维包埋中间部位剪切应力较小:采用液体丁腈橡胶改性环氧树脂的硼纤维/环氧复合材料界面抗剪强度比未改性环氧树脂的提高了135%.
界面抗剪强度
单纤维拔出试验
硼纤维
环氧树脂
composite
interfacial shear strength
single fiber pullout test
boron fiber
epoxy resin
Abstract
A model of single boron fiber (Bf) pullout was described,and the distribution of shear stress at the interface of Bf/epoxy resin composites was studied.Additionally,a method of preparing single fiber pullout specimens was designed,and the interfacial shear strength (IFSS) of Bf/epoxy resin composites was measured with the method.Before the interface of Bf/epoxy resin composites is debonded,there is maximum shear stress at the fiber entry point and the fiber end inside the polymer,while the shear stress at the fiber middle inside the polymer is small.The IFSS of Bf/epoxy resin composites which are modified with liquid nitrile-butadiene rubber (LNBR) is 235 times of that of Bf/epoxy resin composites without LNBR.
中图分类号 TB332
所属栏目
基金项目 武器装备预研基金资助项目(51489040105KG0101)
收稿日期 2006/7/17
修改稿日期 2006/9/25
网络出版日期
作者单位点击查看
备注文思维(1974-),男,湖南耒阳人,博士研究生.
引用该论文: WEN Si-wei,XIAO Jia-yu,ZENG Jing-cheng,JIANG Da-zhi,YANG Fu-biao,ZHANG Chang-tian. Method of Improving the Interfacial Shear Strength of Bf/Epoxy Resin Composites[J]. Materials for mechancial engineering, 2007, 31(6): 38～41
文思维,肖加余,曾竟成,江大志,杨孚标,张昌天. 提高硼纤维/环氧复合材料界面抗剪强度的方法[J]. 机械工程材料, 2007, 31(6): 38～41
被引情况:
【1】杨浩邈,黄鹏,吴鹏,彭程,曾庆文,何建明,谢卫东, "玻璃纤维表面能及其与不同树脂体系的润湿特性",机械工程材料 38, 50-53(2014)
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参考文献
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【10】Tripathi D,Jones R F.Measurement of the load-bearing capability of the fiber/matrix interface by single-fiber fragmentation[J].Composites Science and Technology,1997,57:925-935.
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【13】吴培熙,张留城.聚合物共混改性[M].北京:中国轻工业出版社,1998.
【2】Koichi G.The role of interfacial debonding in increasing the strength and reliability of unidirectional fibrous composites[J].Composites Science and Technology,1999,59:1871-1879.
【3】Zeng Q D,Ling L,Wang Z L.Statistical strength of unidirectional composites and the effect of the interfacial shear strength[J].Composites Science and Technology,1996,56:1191-1200.
【4】陈祥宝.聚合物基复合材料手册[M].北京:化学工业出版社,2004.
【5】Jones R,Molent L.Application of constitutive modelling and advanced repair technology to F111C aircraft[J].Composite Structures,2004,66:145-157.
【6】孙曼灵.环氧树脂应用原理与技术[M].北京:机械工业出版社,2002.
【7】Chua P S,Piggott M R.The glass fiber-polymer interface:Ⅰ-Theoretical consideration for single fiber pull-out tests[J].Composites Science and Technology,1985,22:33-42.
【8】杨庆生.复合材料细观结构力学与设计[M].北京:中国铁道出版社,2000.
【9】Marotzke C.Influence of the fiber length on the stress transfer from glass and carbon fibers into a thermoplastic matrix in the pull-out test[J].Composites Interfaces,1993,1:153-166.
【10】Tripathi D,Jones R F.Measurement of the load-bearing capability of the fiber/matrix interface by single-fiber fragmentation[J].Composites Science and Technology,1997,57:925-935.
【11】王零森,罗雄,陈熙,等.复合材料的界面强度及测定方法[J].材料研究学报,1994,8(4):372-377.
【12】陈平,张岩.热固性树脂的增韧方法及其增韧机理[J].复合材料学报,1999,16(3):19-22.
【13】吴培熙,张留城.聚合物共混改性[M].北京:中国轻工业出版社,1998.
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