混杂比对碳纤维-玄武岩纤维混杂增强环氧树脂基复合材料弯曲性能的影响
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摘要
将玄武岩纤维置于混杂铺层的压缩侧,研究了碳纤维-玄武岩纤维混杂增强环氧树脂基复合材料的弯曲性能及混杂比对其弯曲性能的影响。通过对试样进行三点弯曲试验得到了材料的弯曲性能,并通过扫描电子显微镜观察材料的失效模式。与纯碳纤维增强环氧树脂基复合材料相比,当混杂比为16.7%和33.3%时,混杂复合材料的弯曲强度明显提升,弯曲强度分别提高12.4%和15.2%,但是其弯曲模量随着混杂比的提升而降低。混杂后的材料及玄武岩纤维增强环氧树脂基复合材料的失效位移都高于碳纤维增强环氧树脂基复合材料,断裂韧性明显提升。从侧面观察可以发现不同铺层在压缩侧、拉伸侧和中间层有不同的失效形式。
Flexural properties of hybrid composites reinforced by carbon fiber and basalt fiber were tested and the effects of hybrid ratio on the flexural properties were also analyzed,on the condition that basalt fiber was put on the compressive side.Three-point bending test was performed on the specimen to obtain the flexural properties and failure mode was observed by scanning electron microscopy.Compared with the pure CFRP specimen,flexural strength of the hybrid composites increases obviously,particularly as the hybrid ratio is 16.7% and 33.3%,the flexural strength increases by 12.4% and 15.2% accordingly.Meanwhile,the flexural modulus of hybrid composites decreases along with the increment of hybrid ratio.Fracture ductility enhances significantly and failure displacements of all hybrid composites and BFRP are higher than that of the pure CFRP.Furthermore,various failure modes can be observed on the compressive side,tensile side and middle layer of the hybrid composites.
Flexural properties of hybrid composites reinforced by carbon fiber and basalt fiber were tested and the effects of hybrid ratio on the flexural properties were also analyzed,on the condition that basalt fiber was put on the compressive side.Three-point bending test was performed on the specimen to obtain the flexural properties and failure mode was observed by scanning electron microscopy.Compared with the pure CFRP specimen,flexural strength of the hybrid composites increases obviously,particularly as the hybrid ratio is 16.7% and 33.3%,the flexural strength increases by 12.4% and 15.2% accordingly.Meanwhile,the flexural modulus of hybrid composites decreases along with the increment of hybrid ratio.Fracture ductility enhances significantly and failure displacements of all hybrid composites and BFRP are higher than that of the pure CFRP.Furthermore,various failure modes can be observed on the compressive side,tensile side and middle layer of the hybrid composites.
引文
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[21] DAVIS D C,WILKERSON J W,ZHU J,et al.Improvements in mechanical properties of a carbon fiber epoxy composite using nanotube science and technology[J].Composite Structures,2010,92(11):2653-2662.
[2] DEHKORDI M T,NOSRATY H,SHOKRIEH M M,et al.Low velocity impact properties of intra-ply hybrid composites based on basalt and nylon woven fabrics[J].Materials&Design,2010,31(8):3835-3844.
[3] HAN S H,OH H J,LEE H C,et al.The effect of post-processing of carbon fibers on the mechanical properties of epoxy-based composites[J].Composites Part B:Engineering,2013,45(1):172-177.
[4] 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.
[5] 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:Engineering,2014,58(3):251-258.
[6]李晨,徐欢欢,古兴瑾.层间混杂复合材料板的拉伸强度预报[J].复合材料学报,2017,34(4):795-800.LI Chen,XU Huanhuan,GU Xingjin.Prediction on tensile strength of inter-ply hybrid composite laminates[J].Acta Materiae Compositae Sinica,2017,34(4):795-800(in Chinese).
[7]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 Teng,JIA Zhiyuan,GUAN Xiaofang,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(in Chinese).
[8] DONGC, RANAWEERA-JAYAWARDENAHA,DAVIES I J.Flexural properties of hybrid composites reinforced by S-2glass and T700Scarbon fibres[J].Composites Part B:Engineering,2012,43(2):573-581.
[9] PANDYA K S,VEERRAJU C,NAIK N K.Hybrid composites made of carbon and glass woven fabrics under quasistatic loading[J]. Materials&Design,2011,32(7):4094-4099.
[10] INMAN M,THORHALLSSON E R,AZRAGUE K.A Mechanical and environmental assessment and comparison of basalt fibre reinforced polymer(BFRP)rebar and steel rebar in concrete beams[J].Energy Procedia,2017,111(C):31-40.
[11] GEBBEKEN N,VALENTINO P,FURGIUELE F,et al.Mechanical characterization of basalt fibre reinforced plastic with different fabric reinforcements—Tensile tests and FEcalculations with representative volume elements(RVEs)[J].Composites Part B:Engineering,2011,42(4):717-723.
[12] ZHANG H,SFARRA S,SARASINI F,et al.Optical and mechanical excitation thermography for impact response in basalt-carbon hybrid fiber-reinforced composite laminates[J].IEEE Transactions on Industrial Informatics,2018,14(2):514-522.
[13]徐虹,卢岩,张可,等.玄碳混杂增强树脂基复合材料混杂比优化设计[J].航空材料学报,2017,37(4):7-13.XU Hong,LU Yan,ZHANG Ke,et al.Optimal design for hybrid ratio of carbon/basalt hybrid fiber reinforced resin matrix composites[J].Journal of Aeronautical Materials,2017,37(4):7-13(in Chinese).
[14]张普,朱虹,孟少平,等.CFRP/BFRP混杂效应试验研究和理论分析[J].工业建筑,2011,41(3):103-107.ZHANG Pu,ZHU Hong,MENG Shaoping,et al.Therotical analysis and test reaearch on hybrid effect of CFRP/BFRP hybrid fiber[J].Industrial Construction,2011,41(3):103-107(in Chinese).
[15] SUBAGIA I,KIM Y.A study on flexural properties of carbon-basalt/epoxy hybrid composites[J].Journal of Mechanical Science&Technology,2013,27(4):987-992.
[16] ASTM International.Standard test methods for flexural properties of unreinforced and reinforced plastics and electrical insulating materials:ASTM D790—10[S].D790.West Conshohocken,PA:ASTM International,2010.
[17] ZHANG J,CHAISOMBAT K,HE S,et al.Hybrid composite laminates reinforced with glass/carbon woven fabrics for lightweight load bearing structures[J]. Materials&Design,2012,36:75-80.
[18] DORIGATO A,PEGORETTI A.Fatigue resistance of basalt fibers-reinforced laminates[J].Journal of Composite Materials,2012,46(15):1773-1785.
[19] KRETSIS G.A review of the tensile,compressive,flexural and shear properties of hybrid fibre-reinforced plastics[J].Composites,1987,18(1):13-23.
[20] SUDARISMAN,MIGUEL B D S,DAVIES I J.The effect of partial substitution of E-glass fibre for carbon fibre on the mechanical properties of CFRP composites[C]//International Conference on Materials and Metallurgical Technology,2009.
[21] DAVIS D C,WILKERSON J W,ZHU J,et al.Improvements in mechanical properties of a carbon fiber epoxy composite using nanotube science and technology[J].Composite Structures,2010,92(11):2653-2662.
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