电阻法研究碳纳米纤维改性CFRP复合材料的自感知特性
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- 英文论文题名：SELF-SENSING OF CARBON NANOFIBER MODIFIED CFRP COMPOSITES BY ELECTRICAL RESISTANCE MEASUREMENT
- 论文作者：王言磊 ; 常瑞娟
- 英文论文作者：WANG Yan-lei ; CHANG Rui-juan ; State Key Laboratory of Coastal and Offshore Engineering ; Dalian University of Technology
- 年：2016
- 作者机构：大连理工大学海岸和近海工程国家重点实验室;
- 论文关键词：CNFs ; CFRP ; 电阻 ; 自感知
- 英文论文关键词：CNFs ; CFRP ; resistance ; self-sensing
- 会议召开时间：2016-09-22
- 会议录名称：第二十一届全国玻璃钢/复合材料学术年会论文集（《玻璃钢/复合材料》2016增刊）
- 语种：中文
- 分类号：TQ342.742;TB332
- 学会代码：EUGQ
- 会议名称：第二十一届全国玻璃钢/复合材料学术年会
- 会议地点：中国黑龙江哈尔滨
- 主办单位：中国硅酸盐学会玻璃钢分会
- 学会名称：中国硅酸盐学会
- 页数：4
- 文件大小：606k
- 原文格式：O
- 会议级别：全国
摘要
将不同掺量的碳纳米纤维(CNFs)均匀分散在环氧树脂中,并通过手糊法制作CNFs/碳纤维增强复合材料(CFRP)层合板。对该复合材料进行单调拉伸、等幅循环拉伸和递增循环拉伸试验,并在加载过程中采用两电极法实时监测复合材料的电阻变化,以此来反映该复合材料的自感知能力。结果表明,加入CNFs后,由于环氧树脂基体中导电网络的存在,CNFs/CFRP复合材料电阻的变化率在三种加载方式下均有提高,即对应变和损伤自感知能力得到了改善。
Dispersing the different contents of carbon nanofibers(CNFs) uniformly into the epoxy resin,and fabricating the CNF/carbon fiber polymer(CFRP) laminates by hand lay up.The specimens were loaded in quasistatic single tension,constant amplitude cyclic and incremental cyclic loading,while measured the resistance variable using the four point method in real-time in order to reflect the selfing-sensing ability of the material.The results showed that adding the CNF formed conductive network in the matrix,the rates of change in resistance has been improved under three loading,meaning the self-sensing ability of the composite on the strain and damage is improved.
Dispersing the different contents of carbon nanofibers(CNFs) uniformly into the epoxy resin,and fabricating the CNF/carbon fiber polymer(CFRP) laminates by hand lay up.The specimens were loaded in quasistatic single tension,constant amplitude cyclic and incremental cyclic loading,while measured the resistance variable using the four point method in real-time in order to reflect the selfing-sensing ability of the material.The results showed that adding the CNF formed conductive network in the matrix,the rates of change in resistance has been improved under three loading,meaning the self-sensing ability of the composite on the strain and damage is improved.
引文
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[5]V.Kostopoulos,A.Baltopoulos,P.Karapappas,et al.Impact and after-impact properties of carbon fibre reinforced composites enhanced with multi-wall carbon nanotubes[J].Composites Science and Technology,2010,70(4):553-563.
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[2]徐学春.碳纤维复合材料载荷下损伤自诊断基础研究及有限元分析[D].南京:南京航空大学,2012.
[3]谢小林.基于电阻法碳布增强环氧树脂复合材料损伤自诊断的研究[D].武汉:武汉理工大学,2010.
[4]董留兵.碳纳米管改性碳纤维/环氧树脂复合材料的制备与性能研究[D].天津:天津大学,2013.
[5]V.Kostopoulos,A.Baltopoulos,P.Karapappas,et al.Impact and after-impact properties of carbon fibre reinforced composites enhanced with multi-wall carbon nanotubes[J].Composites Science and Technology,2010,70(4):553-563.
[6]Tomohiro Yokozeki,Yutaka Iwahori,Shin Ishiwata.Matrix cracking behaviors in carbon fiber/epoxy laminates filled with cup-stacked carbon nanotubes(CSCNTS)[J].Composites Part A Applied Science&Manufacturing,2007,38:917-924.