Quantification of the resistance modeling uncertainty of 19 alternative 2d nonlinear finite element approaches benchmarked against 101 experiments on reinforced concrete beams Arjen de Putter (Witteveen+Bos); Max A N Hendriks (TU Delft); Jan G Rots (TU Delft); Yuguang Yang (TU Delft); Morten Engen (NTNU); Ab van den Bos (DIANA FEA) 19.12.2021 Reinforced Concrete