中山大学学报（自然科学版）2018，Vol.57Issue(3)：143-148,6.DOI:10.13471/j.cnki.acta.snus.2018.03.019
纤维混凝土双丝拉拔物理实验与三维数值模拟
Experimental and 3 D numerical modeling on effect of embedment depth on performance of twin fibers pull out test
摘要
Abstract
Twin fibers pull out tests have been designed and carried out to obtain load-displacement curves.Simultaneously,such tests have been simulated by setting a 3D numerical model,which adopts material heterogeneity.Mechanical properties of twin fibers pull out test can,therefore,be studied by changing embedment depth.The results include tensile stress distribution,load-displacement curves, load-AE-step curves and AE evolution,and these results show that the change of twin fibers embedment has great influence on stress distribution.With an increasing embedment depth,peak load and toughness increase either.In addition,similar trend of load-displacement curve of twin fibers pull out test could be observed in both laboratory experiment and numerical simulation.关键词
双丝拉拔/埋深/三维/纤维混凝土Key words
twin fibers pull out/embedment depth/3D/fiber reinforced concrete分类
通用工业技术引用本文复制引用
刘浩,曾向荣,张亚芳,梁正召..纤维混凝土双丝拉拔物理实验与三维数值模拟[J].中山大学学报（自然科学版）,2018,57(3):143-148,6.基金项目
国家自然科学基金(51678170,51278136) （51678170,51278136）
广州市科技创新平台项目(15180005) （15180005）
