T300/E51碳纤维编织层合板压入变形损伤分析
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摘要
碳纤维编织层合板具有高比强度和易成形性,在工业领域内作为结构件的应用越发广泛。基于Hashin强度判据分析T300/E51碳纤维编织层合板在球形压头准静载条件下的力学响应,研究变形时的组分材料损伤,以组分材料刚度的退化表示其失效。试件损伤表现为压头背向处纤维应力较大,发生断裂,并垂直于该处纤维方向扩展,各层纤维应力差较大,试验结果与计算结果一致性较好;以此为依据设计了表层材料为T700SC的双层板,有效的改善了内外层应力差别较大的问题。
Carbon fiber braided laminates as structural part is widely used in industrial production due to its features of high specific strength and formability. Based on Hashin strength criterion,the mechanical responses of T300/E51 carbon fiber braided laminates is analyzed under quasi-static loading condition of spherical indenter. It studies the deformation damage of component materials,and using stiffness degradation to denote its failure. Specimen damage is manifested as fibers stress increase even to break on the back of indenter,and the fissure propagate perpendicular to the fiber direction,the stress difference in different layers is large. Results of computational model are in good agreement with experiments. Further,a double-layer laminate was designed T700 SC fabric as the surface layer,which solves the problem of large stress difference between the inner and surface layer.
Carbon fiber braided laminates as structural part is widely used in industrial production due to its features of high specific strength and formability. Based on Hashin strength criterion,the mechanical responses of T300/E51 carbon fiber braided laminates is analyzed under quasi-static loading condition of spherical indenter. It studies the deformation damage of component materials,and using stiffness degradation to denote its failure. Specimen damage is manifested as fibers stress increase even to break on the back of indenter,and the fissure propagate perpendicular to the fiber direction,the stress difference in different layers is large. Results of computational model are in good agreement with experiments. Further,a double-layer laminate was designed T700 SC fabric as the surface layer,which solves the problem of large stress difference between the inner and surface layer.
引文
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[12]Huang Z M,Liu L.Predicting strength of fibrous laminates under triaxial loads only upon independently measured constituent properties[J].International Journal of Mechanical Sciences,2014,79:109-125.
[13]Z.Hashin.Failure Criteria for Unidirection-al Fiber Composites[J].J APPL MECH-T ASME,1980,47(02):329-334.
[14]Murugesan N,Rajamohan V.Prediction of Progressive Ply Failure of Laminated Composite Structures:A Review[J].ARCH COMPUT METHOD E,2016,24(04):841-853.
[15]Falzon B G,Apruzzese P.Numerical analysis of intralaminar failure mechanisms in composite structures.Part I:FE implementation[J].Composite Structures,2011,93(02):1039-1046.
[16]Naik Rajiv A.Failure Analysis of Woven and Braided Fabric Reinforced Composites[J].Journal of Composite Materials,2016,29(17):2334-2363.
[17]卢博远,赵静,韦子辉,等.碳纤维编织复合材料损伤变形与破坏实验研究[J].玻璃钢/复合材料,2017,(05):22-27.
[18]Zhang D.T,Chen L,Wang Y J.Bias tensile strength behaviors of woven fabric:theoretical and experimental[J].Journal of the Textile Institute,2017,108(10):1753-1761.
[19]Ullah H,Harland A R,Silberschmidt V V.Damage modelling in woven-fabric CFRP laminates under large-deflection bending[J].Computational Materials Science,2012,64:130-135.
[2]赵艳荣,胡平,梁继才,等.碳纤维复合材料在汽车工业中的应用[J].合成树脂及塑料,2015,32(05):95-98.
[3]张亚楠,周勃,孙成才,等.基于流固耦合的风力机叶片疲劳破坏分析[J].重型机械,2017,(02):21-24.
[4]Dolatabadi,M.K,Kovar,R.Anisotropy in tensile properties of plain weave fabric-Part I:The meso-scale model[J].Textile Research Journal,2012,82(16):1666-1676.
[5]孙旋,童明波,陈智,等.碳纤维复合材料接头力学性能试验与仿真分析[J].复合材料学报,2016,33(17):2517-2527.
[6]张琦,高强,赵升吨.碳纤维复合材料板热冲压成形试验研究[J].机械工程学报,2012,48(18):72-77.
[7]堵同亮,彭雄奇,郭早阳,等.碳纤维编织复合材料冲压成形实验与仿真分析[J].功能材料,2013,44(16):2401-2405.
[8]Xu L,Jin C Z,Ha S K.Ultimate strength prediction of braided textile composites using a multi-scale approach[J].Journal of Composite Materials,2015,49(04):477-494.
[9]李晋峰,马立东,黄庆学,等.板带弯曲的载荷挠度分析及实验验证[J].重型机械,2013,(06):36-39.
[10]余焱群,黄小光,綦耀光.基于ABAQUS的N80中段减薄套管抗拉压能力分析[J].重型机械,2011,(03):48-51.
[11]董亚波.纤维编织复合材料的冲击响应与能量吸收特性研究[D].黑龙江:哈尔滨工业大学,2009,22-35.
[12]Huang Z M,Liu L.Predicting strength of fibrous laminates under triaxial loads only upon independently measured constituent properties[J].International Journal of Mechanical Sciences,2014,79:109-125.
[13]Z.Hashin.Failure Criteria for Unidirection-al Fiber Composites[J].J APPL MECH-T ASME,1980,47(02):329-334.
[14]Murugesan N,Rajamohan V.Prediction of Progressive Ply Failure of Laminated Composite Structures:A Review[J].ARCH COMPUT METHOD E,2016,24(04):841-853.
[15]Falzon B G,Apruzzese P.Numerical analysis of intralaminar failure mechanisms in composite structures.Part I:FE implementation[J].Composite Structures,2011,93(02):1039-1046.
[16]Naik Rajiv A.Failure Analysis of Woven and Braided Fabric Reinforced Composites[J].Journal of Composite Materials,2016,29(17):2334-2363.
[17]卢博远,赵静,韦子辉,等.碳纤维编织复合材料损伤变形与破坏实验研究[J].玻璃钢/复合材料,2017,(05):22-27.
[18]Zhang D.T,Chen L,Wang Y J.Bias tensile strength behaviors of woven fabric:theoretical and experimental[J].Journal of the Textile Institute,2017,108(10):1753-1761.
[19]Ullah H,Harland A R,Silberschmidt V V.Damage modelling in woven-fabric CFRP laminates under large-deflection bending[J].Computational Materials Science,2012,64:130-135.