表面形貌对GFRP/铝合金粘接剪切强度的影响研究
|
摘要
在玻璃纤维增强树脂基复合材料(GFRP)和金属的粘接中,粘接界面是整个粘接结构中最薄弱的环节。为了研究金属的表面形貌对GFRP/金属粘接强度的影响,采用不同型号的砂纸磨削铝合金表面以获得不同的金属表面形貌,进而用共固化工艺制备了GFRP/铝合金单搭接试件,通过剪切实验研究了表面粗糙度评定参数Rc(轮廓单元的平均高度)、Rsm(轮廓单元的平均宽度)、Rlo(粗糙度被测的轮廓长度)与粘接剪切强度的关系,在此基础上,分析了粘接剪切强度随Rsm和Rc比值的变化情况。结果表明,太粗糙的表面不利于GFRP与铝合金的粘接,只有Rsm与Rc的比值保持在合理范围内时,树脂胶粘剂才能充分填充金属表面轮廓,此时,Rlo是粘接强度的主要影响因素。
The bonding interface is the weakest place in the bonding of glass fiber reinforced plastic( GFRP)and metal plate. In order to study the effect of metal surface topography on the bonding strength of GFRP and metal plate,different aluminum alloy surface topography was obtained by grinding with different types of sand paper. After grinding,the aluminum alloy was used to prepare single lap joint of GFRP and aluminum alloy by co-curing process.The shear test was carried out to study the relationship between roughness parameters Rc( mean height of profile elements),Rsm( mean width of the profile elements),Rlo( developed length) and shear strength. On this basis,the change trend of shear strength with the ratio of Rsmto Rcis studied. The results show that too rough surface is not conducive to the bonding of GFRP and aluminum alloy. When the ratio of Rsmto Rcis in a reasonable range,the adhesive can fully fill the surface profile of aluminum alloy and Rlois the main influencing factor of bonding strength.
The bonding interface is the weakest place in the bonding of glass fiber reinforced plastic( GFRP)and metal plate. In order to study the effect of metal surface topography on the bonding strength of GFRP and metal plate,different aluminum alloy surface topography was obtained by grinding with different types of sand paper. After grinding,the aluminum alloy was used to prepare single lap joint of GFRP and aluminum alloy by co-curing process.The shear test was carried out to study the relationship between roughness parameters Rc( mean height of profile elements),Rsm( mean width of the profile elements),Rlo( developed length) and shear strength. On this basis,the change trend of shear strength with the ratio of Rsmto Rcis studied. The results show that too rough surface is not conducive to the bonding of GFRP and aluminum alloy. When the ratio of Rsmto Rcis in a reasonable range,the adhesive can fully fill the surface profile of aluminum alloy and Rlois the main influencing factor of bonding strength.
引文
[1]马建勋,宋松林,蒋湘闽.碳纤维布-钢构件抗剪粘接性能试验研究[J].工程力学,2005(6):181-187.
[2]Wang Hai-Tao,Wu Gang,Jiang Jian-Biao.Fatigue behavior of cracked steel plates strengthened with different CFRP systems and configurations[J].Journal of Composites for Construction,2016,20(3):04015078.
[3]郑云,叶列平,岳清瑞.CFRP板加固含裂纹受拉钢板的疲劳性能研究[J].工程力学,2007(6):91-97.
[4]伍希志,程军圣,杨宇,等.CFRP加固裂纹钢板的疲劳寿命及加固参数研究[J].华南理工大学学报(自然科学版),2016(4):143-148.
[5]Harries Kent A.,Peck Andrew J..Abraham Elizabeth J..Enhancing stability of structural steel sections using FRP[J].Thin-Walled Structures,2009,47(10):1092-1101.
[6]张锦骁,蒋首超.FRP加强修复金属结构研究概述[J].土木工程与管理学报,2014(2):39-50.
[7]孙建军.试论影响粘接质量的主要因素[J].中国胶粘剂,2014(1):56-58.
[8]Zielecki W.,Pawlus P.,Perowski R.,et al.Surface topography effect on strength of lap adhesive joints after mechanical pre-treatment[J].Archives of Civil and Mechanical Engineering,2013,13(2):175-185.
[9]Hai Bang Phan,Holloway D.S.,Hui Jiao.An investigation into the effect of roughness conditions and materials on bond strength of CFRP/steel double strap joints[J].Australian Journal of Structural Engineering,2015,16(4):292-301.
[10]Wang Binhua,Bai Yuxuan,Hu Xiaozhi,et al.Enhanced epoxy adhesion between steel plates by surface treatment and CNT/shortfibre reinforcement[J].Composites Science and Technology,2016,127:149-157.
[11]Wang Binhua,Hu Xiaozhi,Lu Pengmin.Improvement of adhesive bonding of grit-blasted steel substrates by using diluted resin as a primer[J].International Journal of Adhesion&,Adhesives,2017.
[12]陈明安,张新明,蒋志军,等.铝及铝合金表面处理后的表面特征和粘接特性[J].化学与粘合,2001(6):262-264,267.
[13]胡伟,蔡如琳,谭利敏,等.几种机械表面处理方法对6013铝合金接头胶接性能的影响[J].粘接,2014(1):45-49.
[14]孙振起,黄明辉.航空用铝合金表面处理的研究现状与展望[J].材料导报,2011(23):146-151.
[15]王玉奇,何晓聪,邢保英,等.胶厚对单搭粘接接头强度影响的试验与仿真研究[J].机械强度,2014(6):873-877.
[2]Wang Hai-Tao,Wu Gang,Jiang Jian-Biao.Fatigue behavior of cracked steel plates strengthened with different CFRP systems and configurations[J].Journal of Composites for Construction,2016,20(3):04015078.
[3]郑云,叶列平,岳清瑞.CFRP板加固含裂纹受拉钢板的疲劳性能研究[J].工程力学,2007(6):91-97.
[4]伍希志,程军圣,杨宇,等.CFRP加固裂纹钢板的疲劳寿命及加固参数研究[J].华南理工大学学报(自然科学版),2016(4):143-148.
[5]Harries Kent A.,Peck Andrew J..Abraham Elizabeth J..Enhancing stability of structural steel sections using FRP[J].Thin-Walled Structures,2009,47(10):1092-1101.
[6]张锦骁,蒋首超.FRP加强修复金属结构研究概述[J].土木工程与管理学报,2014(2):39-50.
[7]孙建军.试论影响粘接质量的主要因素[J].中国胶粘剂,2014(1):56-58.
[8]Zielecki W.,Pawlus P.,Perowski R.,et al.Surface topography effect on strength of lap adhesive joints after mechanical pre-treatment[J].Archives of Civil and Mechanical Engineering,2013,13(2):175-185.
[9]Hai Bang Phan,Holloway D.S.,Hui Jiao.An investigation into the effect of roughness conditions and materials on bond strength of CFRP/steel double strap joints[J].Australian Journal of Structural Engineering,2015,16(4):292-301.
[10]Wang Binhua,Bai Yuxuan,Hu Xiaozhi,et al.Enhanced epoxy adhesion between steel plates by surface treatment and CNT/shortfibre reinforcement[J].Composites Science and Technology,2016,127:149-157.
[11]Wang Binhua,Hu Xiaozhi,Lu Pengmin.Improvement of adhesive bonding of grit-blasted steel substrates by using diluted resin as a primer[J].International Journal of Adhesion&,Adhesives,2017.
[12]陈明安,张新明,蒋志军,等.铝及铝合金表面处理后的表面特征和粘接特性[J].化学与粘合,2001(6):262-264,267.
[13]胡伟,蔡如琳,谭利敏,等.几种机械表面处理方法对6013铝合金接头胶接性能的影响[J].粘接,2014(1):45-49.
[14]孙振起,黄明辉.航空用铝合金表面处理的研究现状与展望[J].材料导报,2011(23):146-151.
[15]王玉奇,何晓聪,邢保英,等.胶厚对单搭粘接接头强度影响的试验与仿真研究[J].机械强度,2014(6):873-877.