ZENG Xiangrong, ZHANG Yafang, LIU Hao, et al. Numerical Simulation Study of Influence of Interface Heterogeneity on Single Fiber Pull-Out Test of Concrete Matrix[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2015,54(5):56-61.
ZENG Xiangrong, ZHANG Yafang, LIU Hao, et al. Numerical Simulation Study of Influence of Interface Heterogeneity on Single Fiber Pull-Out Test of Concrete Matrix[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2015,54(5):56-61.DOI:
Numerical model of fiber-concrete matrix had been generated
and the influence of interface heterogeneity on single fiber pull-out test of concrete matrix had been studied. Furthermore
load-displacement curves
acoustic emission(AE) accumulation curves and interface shear stress distribution curves could be obtained and interpreted. The results of this numerical study indicate that change of the interface heterogeneity has great effects on peak load and degradation of the load-displacement curves. In addition
the AE accumulation increases with the interface heterogeneity. The interface shear stress distribution curves show that the shear stress distribution curves tend to be smooth with the increase of the interface heterogeneity.
关键词
单丝拉拔界面均质度声发射
Keywords
single fiber pull-out testinterface heterogeneityacoustic emission