定向钢纤维增强水泥基复合材料抗拉细观模拟
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摘要
将钢纤维增强水泥基复合材料看作水泥砂浆基体和钢纤维夹杂组成的复合材料,采用扩展有限元法模拟了定向钢纤维增强水泥基复合材料受拉破坏的全过程.研究采用混合同余法生成随机数建立了钢纤维随机生成算法,进而生成了不同纤维掺量的定向钢纤维水泥砂浆细观数值模型.在考虑钢纤维与砂浆基体黏结滑移作用的基础上,模拟了定向钢纤维水泥砂浆受拉断裂全过程,得到了拉伸应力-应变全曲线.通过开展直拉试验,对细观数值模拟结果进行了验证.研究表明,细观数值模拟得到的全曲线结果与试验结果吻合较好,建立的细观模型有助于进一步揭示钢纤维增强水泥基复合材料的拉伸破坏机理.
Steel fiber reinforced cementitious composites(SFRC)were treated as composite material,which consists of steel fiber and cement mortar.The whole process of tensile fracture for aligned steel fiber reinforced cementitious composites(ASFRC)was simulated on the basis of extended finite element method(XFEM).Mixed congruence algorithm was used to generate random number,and random generation algorithm of steel fibers was established,the numerical models with different content of steel fibers were established.Considering bond-slip between steel fiber and mortar matrix,the whole process of tensile fracture for ASFRC was simulated,and the stress-strain curves were obtained.The numerical simulation results were verified by conducting tension tests.The research shows that the complete curve results of numerical simulation match well with experimental results,the meso-scale numerical model can contribute to reveal the tensile failure mechanism of SFRC.
Steel fiber reinforced cementitious composites(SFRC)were treated as composite material,which consists of steel fiber and cement mortar.The whole process of tensile fracture for aligned steel fiber reinforced cementitious composites(ASFRC)was simulated on the basis of extended finite element method(XFEM).Mixed congruence algorithm was used to generate random number,and random generation algorithm of steel fibers was established,the numerical models with different content of steel fibers were established.Considering bond-slip between steel fiber and mortar matrix,the whole process of tensile fracture for ASFRC was simulated,and the stress-strain curves were obtained.The numerical simulation results were verified by conducting tension tests.The research shows that the complete curve results of numerical simulation match well with experimental results,the meso-scale numerical model can contribute to reveal the tensile failure mechanism of SFRC.
引文
[1]朱海堂,高丹盈,谢丽,等.钢纤维高强混凝土弯曲韧性的研究[J].硅酸盐学报,2004,32(5):656-660.ZHU Haitang,GAO Danying,XIE Li,et al.Research on flexural toughness of steel fiber reinforced high strength concrete[J].Journal of the Chinese Ceramic Society,2004,32(5):657-660.(in Chinese)
[2]GAO D Y,ZHANG T Y.Fracture characteristics of steel fiber reinforced high strength concrete under three-point bending[J].Journal of the Chinese Ceramic Society,2007,35(12):1630-1635.
[3]高丹盈,张廷毅.三点弯曲下的钢纤维高强混凝土断裂能[J].水利学报,2007,38(9):1115-1120.GAO Danying,ZHANG Tingyi.Fracture energy of steel fiberreinforced high-strength concrete under three-point bending[J].Journal of Hydraulic Engineering,2007,38(9):1115-1120.(in Chinese)
[4]HOLSCHEMACHER K,MUELLER T,RIBAKOV Y.Effect of steel fibres on mechanical properties of high-strength concrete[J].Materials&Design,2010,31(5):2604-2615.
[5]宋玉普,赵国藩,彭放,等.三向应力状态下钢纤维混凝土的变形特性[J],水利学报,1995(5):1-8.SONG Yupu,ZHAO Guofan,PENG Fang,et al.Deformation behavior of steel fiber reinforced concrete under tri-axial stresses[J].Journal of Hydraulic Engineering,1995(5):1-8.(in Chinese)
[6]彭刚,刘德富,戴会超.钢纤维混凝土动态压缩性能及全曲线模型研究[J].工程力学,2009,26(2):142-147.PENG Gang,LIU Defu,DAI Huichao.Investigation of dynamic constitutive model of steel fiber concrete under conventional tri-axial compression[J].Engineering Mechanics,2009,26(2):142-147.(in Chinese)
[7]WANG S S,ZHANG M H,QUEK S T.Mechanical behavior of fiber-reinforced high-strength concrete subjected to high strain-rate compressive loading[J].Construction and Building Materials,2012,31(6):1-11.
[8]XU Z,HAO H,LI H N.Experimental study of dynamic compressive properties of fibre reinforced concrete material with different fibres[J].Materials and Design,2012,33(1):42-55.
[9]ABRISHAMBAF A,BARROS J,CUNHA V.Relation between fibre distribution and post-cracking behaviour in steel fibre reinforced self-compacting concrete panels[J].Cement and Concrete Research,2013,51(9):57-66.
[10]ABRISHAMBAF A,BARROS J,CUNHA V.Assessment of fibre orientation and distribution in steel fibre reinforced selfcompacting concrete panels[C]∥8th RILEM International Symposium on Fibre Reinforced Concrete:Challenges and Opportunities(BEFIB).Guimaraes,Portugal:Rilem Publications SARL,2012:1-12.
[11]ABRISHAMBAF A,CUNHA V,BARROS J.Two-phase material approach to model steel fibre reinforced self-compacting concrete in panels[J].Engineering Fracture Mechanics,2016,162:1-20.
[12]慕儒,邱欣,赵全明,等.单向分布钢纤维增强水泥基复合材料(Ⅰ):钢纤维方向控制[J].建筑材料学报,2015,18(2):208-213.MU Ru,QIU Xin,ZHAO Quanming,et al.Aligned steel fiber reinforced cement based composites(Ⅰ):Orientation control of steel fibres[J].Journal of Building Materials,2015,18(2):208-213.(in Chinese)
[13]MU R,LI H,QING L B,et al.Aligning steel fibers in cement mortar using electro-magnetic field[J].Construction and Building Materials,2017,131:309-316.
[14]慕儒,王成,李辉,等.单向分布钢纤维增强水泥基复合材料(Ⅲ):断裂性能[J].建筑材料学报,2016,19(1):78-82.MU Ru,WANG Cheng,LI Hui,et al.Aligned steel fiber reinforced cement-based composites(Ⅲ):Fracture properties[J].Journal of Building Materials,2016,19(1):78-82.(in Chinese)
[15]QIN F,ZHANG J H.Three-dimensional modeling of steel fiber reinforced concrete material under intense dynamic loading[J].Construction and Building Materials,2013,44:118-132.
[16]刘丰.钢纤维混凝土细观层次数值模拟研究[D].广州:华南理工大学,2014.LIU Feng.Study of numerical simulation for steel fiber reinforced concrete on meso-level[D].Guangzhou:South China University of Technology,2014.(in Chinese)
[17]RENA C Y,HECTOR C,IGNACIO R,et al.Dynamic fracture behaviour in fibre-reinforced cementitious composites[J].Journal of the Mechanics and Physics of Solids,2016,93:135-152.
[18]SOETENS T,MATTHYS S.Different methods to model the post-cracking behaviour of hooked-end steel fibre reinforced concrete[J].Construction and Building Materials,2014,73:458-471.
[19]BELYTSCHKO T,BLACK T.Elastic crack growth in finite element with minimal remeshing[J].International Journal for Numerical Methods in Engineering,1999,45(5):601-620.
[20]MOES N,DOLBOW J,BELYTSCHKO T.A finite element method for crack growth without remeshing[J].International Journal for Numerical Methods in Engineering,1999,46(1):131-150.
[21]REN X D,LI J.Multi-scale based fracture and damage analysis of steel fiber reinforced concrete[J].Engineering Failure Analysis,2013,35(26):253-261.
[22]GREENBERGER M.An a priori determination of serial correlation in computer generated random numbers[J].Mathematics of Computation,1961,15(76):383-383.
[23]慕儒,马艳奉,李辉,等.定向钢纤维混凝土中的钢纤维分布X-ray CT分析[J].电子显微镜学报,2015,34(6):487-491.MU Ru,MA Yanfeng,LI Hui,et al.Analysis of the distribution of steel fiber in aligned steel fiber reinforced concrete using digital X-ray CT scanning[J].Journal of Chinese Electron Microscopy Society,2015,34(6):487-491.(in Chinese)
[24]ABRISHAMBAF A,PIMENTEL M,NUNES S.Influence of fibre orientation on the tensile behaviour of ultra-high performance fibre reinforced cementitious composites[J].Cement and Concrete Research,2017,97:28-40.
[25]HASSAN A M T,JONES S W,MAHMUD G H.Experimental test methods to determine the uniaxial tensile and compressive behaviour of ultra high performance fibre reinforced concrete(UHPFRC)[J].Construction and Building Materials,2012,37(12):874-882.
[26]HILLERBORG A,MODEER M,PETERSSON P E.Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements[J].Cement and Concrete Research,1976,6(6):773-781.
[2]GAO D Y,ZHANG T Y.Fracture characteristics of steel fiber reinforced high strength concrete under three-point bending[J].Journal of the Chinese Ceramic Society,2007,35(12):1630-1635.
[3]高丹盈,张廷毅.三点弯曲下的钢纤维高强混凝土断裂能[J].水利学报,2007,38(9):1115-1120.GAO Danying,ZHANG Tingyi.Fracture energy of steel fiberreinforced high-strength concrete under three-point bending[J].Journal of Hydraulic Engineering,2007,38(9):1115-1120.(in Chinese)
[4]HOLSCHEMACHER K,MUELLER T,RIBAKOV Y.Effect of steel fibres on mechanical properties of high-strength concrete[J].Materials&Design,2010,31(5):2604-2615.
[5]宋玉普,赵国藩,彭放,等.三向应力状态下钢纤维混凝土的变形特性[J],水利学报,1995(5):1-8.SONG Yupu,ZHAO Guofan,PENG Fang,et al.Deformation behavior of steel fiber reinforced concrete under tri-axial stresses[J].Journal of Hydraulic Engineering,1995(5):1-8.(in Chinese)
[6]彭刚,刘德富,戴会超.钢纤维混凝土动态压缩性能及全曲线模型研究[J].工程力学,2009,26(2):142-147.PENG Gang,LIU Defu,DAI Huichao.Investigation of dynamic constitutive model of steel fiber concrete under conventional tri-axial compression[J].Engineering Mechanics,2009,26(2):142-147.(in Chinese)
[7]WANG S S,ZHANG M H,QUEK S T.Mechanical behavior of fiber-reinforced high-strength concrete subjected to high strain-rate compressive loading[J].Construction and Building Materials,2012,31(6):1-11.
[8]XU Z,HAO H,LI H N.Experimental study of dynamic compressive properties of fibre reinforced concrete material with different fibres[J].Materials and Design,2012,33(1):42-55.
[9]ABRISHAMBAF A,BARROS J,CUNHA V.Relation between fibre distribution and post-cracking behaviour in steel fibre reinforced self-compacting concrete panels[J].Cement and Concrete Research,2013,51(9):57-66.
[10]ABRISHAMBAF A,BARROS J,CUNHA V.Assessment of fibre orientation and distribution in steel fibre reinforced selfcompacting concrete panels[C]∥8th RILEM International Symposium on Fibre Reinforced Concrete:Challenges and Opportunities(BEFIB).Guimaraes,Portugal:Rilem Publications SARL,2012:1-12.
[11]ABRISHAMBAF A,CUNHA V,BARROS J.Two-phase material approach to model steel fibre reinforced self-compacting concrete in panels[J].Engineering Fracture Mechanics,2016,162:1-20.
[12]慕儒,邱欣,赵全明,等.单向分布钢纤维增强水泥基复合材料(Ⅰ):钢纤维方向控制[J].建筑材料学报,2015,18(2):208-213.MU Ru,QIU Xin,ZHAO Quanming,et al.Aligned steel fiber reinforced cement based composites(Ⅰ):Orientation control of steel fibres[J].Journal of Building Materials,2015,18(2):208-213.(in Chinese)
[13]MU R,LI H,QING L B,et al.Aligning steel fibers in cement mortar using electro-magnetic field[J].Construction and Building Materials,2017,131:309-316.
[14]慕儒,王成,李辉,等.单向分布钢纤维增强水泥基复合材料(Ⅲ):断裂性能[J].建筑材料学报,2016,19(1):78-82.MU Ru,WANG Cheng,LI Hui,et al.Aligned steel fiber reinforced cement-based composites(Ⅲ):Fracture properties[J].Journal of Building Materials,2016,19(1):78-82.(in Chinese)
[15]QIN F,ZHANG J H.Three-dimensional modeling of steel fiber reinforced concrete material under intense dynamic loading[J].Construction and Building Materials,2013,44:118-132.
[16]刘丰.钢纤维混凝土细观层次数值模拟研究[D].广州:华南理工大学,2014.LIU Feng.Study of numerical simulation for steel fiber reinforced concrete on meso-level[D].Guangzhou:South China University of Technology,2014.(in Chinese)
[17]RENA C Y,HECTOR C,IGNACIO R,et al.Dynamic fracture behaviour in fibre-reinforced cementitious composites[J].Journal of the Mechanics and Physics of Solids,2016,93:135-152.
[18]SOETENS T,MATTHYS S.Different methods to model the post-cracking behaviour of hooked-end steel fibre reinforced concrete[J].Construction and Building Materials,2014,73:458-471.
[19]BELYTSCHKO T,BLACK T.Elastic crack growth in finite element with minimal remeshing[J].International Journal for Numerical Methods in Engineering,1999,45(5):601-620.
[20]MOES N,DOLBOW J,BELYTSCHKO T.A finite element method for crack growth without remeshing[J].International Journal for Numerical Methods in Engineering,1999,46(1):131-150.
[21]REN X D,LI J.Multi-scale based fracture and damage analysis of steel fiber reinforced concrete[J].Engineering Failure Analysis,2013,35(26):253-261.
[22]GREENBERGER M.An a priori determination of serial correlation in computer generated random numbers[J].Mathematics of Computation,1961,15(76):383-383.
[23]慕儒,马艳奉,李辉,等.定向钢纤维混凝土中的钢纤维分布X-ray CT分析[J].电子显微镜学报,2015,34(6):487-491.MU Ru,MA Yanfeng,LI Hui,et al.Analysis of the distribution of steel fiber in aligned steel fiber reinforced concrete using digital X-ray CT scanning[J].Journal of Chinese Electron Microscopy Society,2015,34(6):487-491.(in Chinese)
[24]ABRISHAMBAF A,PIMENTEL M,NUNES S.Influence of fibre orientation on the tensile behaviour of ultra-high performance fibre reinforced cementitious composites[J].Cement and Concrete Research,2017,97:28-40.
[25]HASSAN A M T,JONES S W,MAHMUD G H.Experimental test methods to determine the uniaxial tensile and compressive behaviour of ultra high performance fibre reinforced concrete(UHPFRC)[J].Construction and Building Materials,2012,37(12):874-882.
[26]HILLERBORG A,MODEER M,PETERSSON P E.Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements[J].Cement and Concrete Research,1976,6(6):773-781.