静力拉伸载荷下纤维金属层板的变形行为
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摘要
为研究静力拉伸载荷下纤维金属层板变形行为,在标准试验之外引入数字图像关联技术(简称DIC),观测了GLARE2-3/2、GLARE3-3/2和GLARE6-3/2层板试样的应变变化过程.对比分析了获得的应力-应变曲线、应变云图及试样不同位置处的应变随载荷时间历程变化的过程.结果显示:GLARE2-3/2层板试样的应变变化过程均匀稳定,无明显边界效应;GLARE3-3/2层板试样轴向有瞬时的性能退化,横向具有边界效应;GLARE6-3/2铺层试样具有两次瞬时性能退化,横向边界效应与GLARE3层板试样相反.
In order to find the deformation behavior and boundary effect of fiber-metal laminate( FML) under uniaxial tensile loading,mechanical tests were carried out on GLARE2- 3 /2,GLARE3- 3 /2 and GLARE6- 3 /2 laminates. A newmethod of digital image correlation was introduced to record the surface strain of the GLARE laminate samples during loading. The stressstrain curves,strain cloud chart and strain-loading time curves showthat the deformation of GLARE2- 3 /2 laminates is uniform,without obvious boundary effects; the GLARE3- 3 /2laminates have instantaneous performance degradation and boundary effect,and the GLARE6- 3 /2laminates have two performance degradation and the boundary effect is opposite to that of GLARE3- 3 /2 laminates.
In order to find the deformation behavior and boundary effect of fiber-metal laminate( FML) under uniaxial tensile loading,mechanical tests were carried out on GLARE2- 3 /2,GLARE3- 3 /2 and GLARE6- 3 /2 laminates. A newmethod of digital image correlation was introduced to record the surface strain of the GLARE laminate samples during loading. The stressstrain curves,strain cloud chart and strain-loading time curves showthat the deformation of GLARE2- 3 /2 laminates is uniform,without obvious boundary effects; the GLARE3- 3 /2laminates have instantaneous performance degradation and boundary effect,and the GLARE6- 3 /2laminates have two performance degradation and the boundary effect is opposite to that of GLARE3- 3 /2 laminates.
引文
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[4]陈琪,关志东,黎增山.GLARE层板性能研究进展[J].科技导报,2013,31(7):50-56.(Chen Qi,Guan Zhi-dong,Li Zeng-shan.Reviewof GLARE technology[J].Science&Technology Review,2013,31(7):50-56.)
[5]黄啸,刘建中.新型纤维金属混合层板结构的疲劳裂纹扩展与分层行为[J].航空材料学报,2012,32(5):97-102.(Huang Xiao,Liu Jian-zhong.Fatigue crack propagation and delamination behavior of advanced fiber metal hybrid laminate[J].Journal of Aeronautical Materials,2012,32(5):97-102.)
[6]Kawai M,Morishita M,Tomura S,et al.Inelastic behavior and strength of fiber-metal hybrid composite:GLARE[J].International Journal of Mechanical Sciences,1998,40:183-198.
[7]Wu G C,Yang J M.Analytical modeling and numerical simulation of the nonlinear deformation of hybrid fiber-metal laminates[J].Modeling and Simulation in Materials Science and Engineering,2005,13:413-425.
[8]Iaccarino P,Langella A,Caprino A.A simplified model to predict the tensile and shear stress-strain behavior of fibreglass/aluminium laminates[J].Composites Science and Technology,2007,67:1784-1793.
[9]Cortes P,Cantwell W J.The prediction of tensile failure in titanium-based thermoplastic fibre-metal laminates[J].Composites Science and Technology,2006,66:2306-2316.
[10]Carrillo J G,Cantwell W J.Scaling effects in the tensile behavior of fiber-metal laminates[J].Composites Science and Technology,2007,67:1684-1693.
[2]Fatt MS H,Lin C F,Revilock D MJr,et al.Ballistic impact of GLARE laminates[J].Composite Structures,2003,61:73-88.
[3]Vogelesang L B,Vlot A.Development of fibermetal laminates for advanced aerospace structures[J].Journal of Materials Processing Technology,2000,103:1-5.
[4]陈琪,关志东,黎增山.GLARE层板性能研究进展[J].科技导报,2013,31(7):50-56.(Chen Qi,Guan Zhi-dong,Li Zeng-shan.Reviewof GLARE technology[J].Science&Technology Review,2013,31(7):50-56.)
[5]黄啸,刘建中.新型纤维金属混合层板结构的疲劳裂纹扩展与分层行为[J].航空材料学报,2012,32(5):97-102.(Huang Xiao,Liu Jian-zhong.Fatigue crack propagation and delamination behavior of advanced fiber metal hybrid laminate[J].Journal of Aeronautical Materials,2012,32(5):97-102.)
[6]Kawai M,Morishita M,Tomura S,et al.Inelastic behavior and strength of fiber-metal hybrid composite:GLARE[J].International Journal of Mechanical Sciences,1998,40:183-198.
[7]Wu G C,Yang J M.Analytical modeling and numerical simulation of the nonlinear deformation of hybrid fiber-metal laminates[J].Modeling and Simulation in Materials Science and Engineering,2005,13:413-425.
[8]Iaccarino P,Langella A,Caprino A.A simplified model to predict the tensile and shear stress-strain behavior of fibreglass/aluminium laminates[J].Composites Science and Technology,2007,67:1784-1793.
[9]Cortes P,Cantwell W J.The prediction of tensile failure in titanium-based thermoplastic fibre-metal laminates[J].Composites Science and Technology,2006,66:2306-2316.
[10]Carrillo J G,Cantwell W J.Scaling effects in the tensile behavior of fiber-metal laminates[J].Composites Science and Technology,2007,67:1684-1693.