Numerical estimation of concrete beams reinforced with FRP bars Kostiantyn Protchenko, Krystian Młodzik, Marek Urbański, Elżbieta Szmigiera and Andrzej Garbacz MATEC Web Conf., 86 (2016) 02011 Published online: 28 November 2016 DOI: 10.1051/matecconf/20168602011