A robust 3D finite element model for concrete columns confined by FRCM system Majid M.A. Kadhim, Mohammed J Altaee, Ali Hadi Adheem and Akram R. Jawdhari MATEC Web Conf., 281 (2019) 01006 Published online: 21 May 2019 DOI: 10.1051/matecconf/201928101006