Effect of hybrid ratio on mechanical properties of carbon/aramid hybrid fiber multi-layered biaxial weft knitted fabric reinforced composites
QI Ye-xiong1,2, JIANG Ya-ming1,2, LI Jia-lu1,2
1. School of Textile Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China;
2. Key Laboratory of Advanced Textile Composites(Ministry of Education), Tianjin Polytechnic University, Tianjin 300387, China
Abstract:Carbon/aramid fiber hybrid multi-layered biaxial weft knitted fabric was prepared in term of intraply hybridization. The mechanical properties and effect of hybrid ratio on mechanical properties were studied. Through uniaxial tension and three-point bending experiments, the tensile and bending properties and effect of hybrid ratio on mechanical properties were obtained. The results show that the tensile properties of composites are improved by adding aramid fibers according to a certain hybrid ratio, which shows a positive hybrid effect. Due to the addition of aramid fibers with good elongation, the tensile fracture elongation of the composites obviously increases, and the failure modes of the composites appear complete brittle fracture mode (C12 material failure mode) and "broom" fiber fracture mode (C8A4, C6A6 material failure mode). Besides, the fracture toughness of carbon fiber reinforced composites is effectively improved by adding aramid fibers at a certain hybrid ratio. The flexural strength and modulus of carbon/aramid hybrid MBWK fabric reinforced composites decrease with the increasing of hybrid ratio. With aramid content changing from 42% (volume fraction, the same below)(C6A6) to 59.2% (C4A8), the decreasing ratio of the bending strength and bending modulus are high. The bending deflection of 0° samples with a hybrid ratio of 59.2% (C4A8) is the highest, the value is 7.49 mm, which is much higher than that of pure aramid fiber or carbon fiber reinforced composites. The bending deflection of all 90° samples is higher than that of pure aramid fiber or pure carbon fiber reinforced composites, which shows the positive hybrid effects.
[1] VERMA D, FORTUNATI E, JAIN S, et al.Biomass, biopolymer-based materials, and bioenergy [M].Cambridge: Woodhead Publishing,2019.
[2] 张丹丹,沈洪雷,曹霞,等. 石墨烯增强金属基航空复合材料研究进展[J]. 材料工程,2019,47(1): 1-10. ZHANG D D, SHEN H L, CAO X, et al. Research progress in grapheme reinforced aeronautical metal matrix composites[J]. Journal of Materials Engineering, 2019, 47(1): 1-10.
[3] 许国栋,李地红,吴昊宇,等.模糊评价法表征复合材料层合板低能量冲击行为[J].材料导报,2018,32(32): 573-576. XU G D, LI D H, WU H Y,et al.Characterization of low energy impact damage behavior for composite laminates by fuzzy evaluation[J]. Materials Reports,2018,32(32): 573-576.
[4] 刘强,马小康,宗志坚. 斜纹机织碳纤维/环氧树脂复合材料性能及其在电动汽车轻量化设计中的应用[J]. 复合材料学报, 2011, 28(5): 83-88. LIU Q, MA X K, ZONG Z J. Properties of twill-weave carbon fabric/epoxy composites and its application on light-weight design for electric vehicles[J]. Acta Materiae Compositae Sinica, 2011, 28(5): 83-88.
[5] 王春红,支中祥,任子龙,等. 稻壳纤维粒径和掺量分数对水泥复合材料性能的影响[J]. 复合材料学报, 2018, 35(6): 1582-1589. WANG C H, ZHI Z X, REN Z L, et al. Effect of rice husk fiber particle size and content on the properties of cement composite[J]. Acta Materiae Compositae Sinica, 2018, 35(6): 1582-1589.
[6] SUBAGIA I, KIM Y. Tensile behavior of hybrid epoxy composite laminate containing carbon and basalt fibers[J]. Science & Engineering of Composite Materials,2014,21(2):211-217.
[7] DEHKORDI M T, NOSRATY H, SHOKRIEH M M, et al. Low velocity impact properties of intraply hybrid composites based on basalt and nylon woven fabrics[J]. Materials & Design, 2010, 31(8): 3835-3844.
[8] 倪楠楠,夏璐,张文宇,等. 苎麻纤维布和玻璃纤维布混杂铺层复合材料的力学性能[J]. 材料工程,2019,47(2): 153-159. NI N N, XIA L, ZHANG W Y, et al. Mechanical properties of ramie fiber cloth and glass fiber cloth hybrid laminated composite[J]. Journal of Materials Engineering, 2019, 47(2): 153-159.
[9] PAIVA J M F D, SANTOS A D N D, REZENDE M C. Mechanical and morphological characterizations of carbon fiber fabric reinforced epoxy composites used in aeronautical field[J]. Materials Research, 2009, 12(3): 367-374.
[10] SUBAGIA I D G A, KIM Y, TIJING L D, et al. Effect of stacking sequence on the flexural properties of hybrid composites reinforced with carbon and basalt fibers[J]. Composites: Part B, 2014, 58(3): 251-258.
[11] 马腾,贾智源,关晓方,等. 混杂比对单向碳-玻层间混编复合材料0°压缩和弯曲性能的影响[J]. 复合材料学报,2017, 34(4): 758-765. MA T, JIA Z Y, GUAN X F, et al. Effects of hybrid ratio on the axial compressed and flexural properties of unidirectional inter-layer carbon-glass hybrid composites[J]. Acta Materiae Compositae Sinica, 2017, 34(4): 758-765.
[12] DONG C, RANAWEERA-JAYAWARDENA H A, DAVIES I J. Flexural properties of hybrid composites reinforced by S-2 glass and T700S carbon fibres[J]. Composites: Part B, 2012, 43(2): 573-581.
[13] PANDYA K S,VEERRAJU C, NAIK N K. Hybrid composites made of carbon and glass woven fabrics under quasi-static loading[J]. Materials & Design, 2011, 32(7): 4094-4099.
[14] 杨斌,章继峰,周利民. 玻璃纤维-碳纤维混杂增强PCBT复合材料层合板的制备及低速冲击性能[J]. 复合材料学报, 2015, 32(2): 435-443. YANG B, ZHANG J F, ZHOU L M. Preparation and low-velocity impact properties of glass fiber-carbon fiber hybrid reinforced PCBT composite laminate[J]. Acta Materiae Compositae Sinica, 2015, 32(2): 435-443.
[15] HU J L, JIANG Y M, KO F. Modeling uniaxial tensile properties of multiaxial warp knitted fabrics[J]. Textile Research Journal, 1998, 68(11): 828-834.
[16] JIANG Y M, HU J L, KO F. Characterizing and modeling bending properties of multiaxial warp knitted fabrics[J]. Textile Research Journal, 1999, 69(9): 691-697.
[17] 张卓. 纬编双轴向多层衬纱织物增强复合材料面内力学性能研究[D]. 天津:天津工业大学,2003. ZHANG Z. The analysis of in-plane mechanical properties of multilayered biaxial weft-knitted fabric reinforced composite[D]. Tianjin: Tianjin Polytechnic University, 2003.
[18] QI Y X, LI J L, LIU L S. Tensile properties of multilayer-connected biaxial weft knitted fabric reinforced composites for carbon fibers[J]. Materials & Design, 2014, 54(2): 678-685.
[19] QI Y X, LI J L, LIU L S. Bending properties of the multilayer-connected biaxial weft knitted fabrics-reinforced composites made with carbon fibers[J]. Polymer Composites, 2015, 36(12): 2291-2302.
[20] PEI X Y, SHANG B,CHEN L, et al. Compression properties of multilayer-connected biaxial weft knitted carbon fiber fabric reinforced composites[J]. Composites: Part B, 2016, 91(4): 296-305.
[21] DAI S, CUNNINGHAM P R, MARSHALL S, et al. Influence of fibre architecture on the tensile, compressive and flexural behaviour of 3D woven composites[J]. Composites: Part A, 2015, 69(2): 195-207.
[22] ULLAH H, HARLAND A R, SILBESCHMIT V V.Experimental and numerical analysis of damage in woven GFRP composites under large-deflection bending[J]. Applied Composite Materials, 2012, 19(5): 769-783.