唐春安

个人信息Personal Information

教授

博士生导师

硕士生导师

主要任职:President of international exchange committee of the Chinese Society of Rock Mechanics and Engineering CSRME

其他任职:国际岩石力学与岩石工程学会(ISRM)中国国家小组副主席

性别:男

毕业院校:东北大学

学位:博士

所在单位:土木工程系

办公地点:综合实验四号楼330

联系方式:tca@mail.neu.edu.cn

扫描关注

论文成果

当前位置: 中文主页 >> 科学研究 >> 论文成果

Numerical simulation of 3-D fracture behaviors on the FRP-strengthened concrete structures

点击次数:

论文类型:会议论文

发表时间:2006-01-01

收录刊物:EI、CPCI-S

卷号:324-325

页面范围:423-+

关键字:3D; FRP; concrete structure; crack propagation; numerical simulation

摘要:A numerical code RFPA(3D) (Realistic Failure Process Analysis) is used to simulate the crack initiation and propagation in FRP-strengthened concrete beam under external loading. In our model, the FRP-strengthened concrete is assumed to be a three-phase composite composed of concrete, FRP, and interface between them. The displacement-control led loading scheme is used to simulate the complete failure process of FRP-strengthened concrete the numerical simulation of failure process of the specimens. It is found that the main failure mode is the interfacial debonding and the interfacial debonding may propagate either within the adhesive layer or through concrete layer in the vicinity of bond interface. The simulation results agree well with the experiment observations. The width of the FRP sheet is considered an important factor not only to significantly influence the debonding propagation type and crack distribution but also to control the ultimate load-capacity and ultimate strain. This study is focused on the failure process of the FRP-strengthened concrete beam and the effects of the width of FRP sheet on the failure mode and on the structural load-carrying capacity of concrete structures.