FEA Modelling of Externally-Strengthened Concrete Beam with CFRP Plates Under Flexural Test

This study concentrates on FEA modelling of concrete beam strengthened with externally bondedCFRP lates under bending by using Traction Separation Law (TSL) as constitutive law to require maximum cohesive stress and fracture energy values. The models were developed following experimental work reported Al-Rousan et al. [23] Ding [22]. Combination two numerical techniques adopted, i.e., Extended Finite Element Method (XFEM) Cohesive Zone (CZM) assigned within cracked region adhesive layer respectively. consistence deformations capture debonding failure seen during observations load-displacement was evaluated accordingly. Additionally, combination XFEM-CZM provides good strength predictions dataset. It is clearly shown that the mode exhibited are determined testing method, CFRP width length. sheets a significant contribution ductility, which noticeable in longest sheet. All series examined, discrepancies less than 25% found. Note current approach used calibrated values from similar grade plates, however better prediction can be produced if independently set-up.