A Double-L Beam Test for evaluating the Mixed Mode Fracture Toughness of FRP and Concrete Interface－Numerical Analysis

• Main Authors: Yi-Sheng Liao, 廖益盛
• Other Authors: B.J Lee
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/36k694

碩士 === 逢甲大學 === 土木及水利工程所 === 91 === Abstract Peel test is an effective method to measure the bonding strength between different objects. The aim of this study is to make peel test be applied to Double-L beam test and find the relationship between the two tests. In Basic, the interfacial fracture energy of peel test is equal to the interfacial fracture energy of Double-L beam test with the same interface, therefore it is also hoped to predict the critical peel force of Double-L beam test while the specimens are peeled. In this study, peel test and Double-L beam test are analyzed by means of finite element method. The different factors considered in this study include the length of specimen and crack, the peel angle and the different load. Besides, this study also analyze literature【22】by means of T25. Numerical results analyzed by finite element method indicate that the change in interfacial fracture energy is not obvious under different specimen length condition. But the change in interfacial fracture energy is more obvious under other conditions. And about literature【22】, it can be obviously find that the analytical results calculated from T25 are more similar to the results from ABAQUS. But the results calculated from theoretical formula are much different with the results from ABAQUS.