Print Email Facebook Twitter Quantification of the resistance modeling uncertainty of 19 alternative 2D nonlinear finite element approaches benchmarked against 101 experiments on reinforced concrete beams Title Quantification of the resistance modeling uncertainty of 19 alternative 2D nonlinear finite element approaches benchmarked against 101 experiments on reinforced concrete beams Author de Putter, Arjen (Witteveen+Bos; Student TU Delft) Hendriks, M.A.N. (TU Delft Concrete Structures; Norwegian University of Science and Technology (NTNU)) Rots, J.G. (TU Delft Applied Mechanics) Yang, Y. (TU Delft Concrete Structures) Engen, Morten (Norwegian University of Science and Technology (NTNU); Multiconsult Norge AS) van den Bos, Ab A. (DIANA FEA) Date 2022 Abstract Nineteen 2D nonlinear finite element analysis (NLFEA) solution strategies were benchmarked against a wide variety of 101 experiments on reinforced concrete beams failing in bending, flexural shear, or shear compression. The relatively high number of solution strategies was motivated by the conviction that choices for the constitutive models, the finite element kinematics and equilibrium settings will interact, and must therefore be tested in conjunction. Modeling uncertainty distribution parameters are presented for the 19 solution strategies, using all beams, and using beams with and without stirrups separately. The resulting statistics are discussed against the correctness of the simulated failure modes and failure loads, revealing that rotating crack models perform well for the relatively ductile failures in beams with stirrups, while fixed crack models perform better for the more brittle failures in beams without stirrups. The tailored solution strategies that predict failure modes correctly, imply a log-normal distribution of the modeling uncertainty with relatively low coefficients of variation. The outlook is that these estimates of the statistical properties of the modeling uncertainties could serve as a basis within safety formats. Subject modeling uncertaintynonlinear finite element analysisreinforced concrete beamsresistance modeling To reference this document use: http://resolver.tudelft.nl/uuid:f26b8593-15ce-48cb-8bd9-2bd7c3a17bfa DOI https://doi.org/10.1002/suco.202100574 ISSN 1464-4177 Source Structural Concrete, 23 (5), 2895-2909 Part of collection Institutional Repository Document type journal article Rights © 2022 Arjen de Putter, M.A.N. Hendriks, J.G. Rots, Y. Yang, Morten Engen, Ab A. van den Bos Files PDF Structural_Concrete_2022_ ... linear.pdf 2.88 MB Close viewer /islandora/object/uuid:f26b8593-15ce-48cb-8bd9-2bd7c3a17bfa/datastream/OBJ/view