Prediction of thermal response of FRP-reinforced beam section

Abstract

This paper applied 2D and 3D non-linear transient temperature analysis to predict the temperature distribution of fiber-reinforced polymer (FRP) reinforced concrete beams using a commercial finite element program. Using ANSYS software, a 2D and 3D models of fiber-reinforced polymer reinforced concrete beams are constructed. The analytical results are verified with the testing result obtained by Abbasi and Hogg (2004) and Rafi (2007) and the experimental results obtained by Kodur et al. (2013). In this research, the temperature distributions at fiber-reinforced polymer is observed. Also, the critical temperature at fiber-reinforced polymer is used in this work. From literature, the value of critical temperature of carbon and glass fiber-reinforced polymer are 300°C and 360°C, respectively. Based on the results, the obtained temperature distribution of fiber-reinforced polymer reinforced concrete beams agree well with the obtained resulted from literature. The thermal properties of concrete are studies. The obtained results from 2D and 3D models are similar.