1 Numerical simulation and design of ferritic stainless steel bolted 1 T-stubs in tension 2 Orhan Yapici 1* , Marios Theofanous 2 , Huanxin Yuan 3 , Samir Dirar 2 , Sheida Afshan 4 3 1 Institute for Infrastructure & Environment, Heriot-Watt University, Edinburgh, EH14 4AS, United Kingdom 4 2 Department of Civil Engineering, University of Birmingham, Birmingham, B15 2TT, United Kingdom 5 3 School of Civil Engineering, Wuhan University, Wuhan 430072, PR China 6 4 Faculty of Engineering and Physical Sciences, University of Southampton, Southampton SO16 7QF, United Kingdom 7 * corresponding author: 8 Orhan Yapici, Institute for Infrastructure & Environment, Heriot-Watt University, Email: [email protected] 9 Abstract 10 Following the experimental study on EN 1.4003 ferritic stainless steel T-stubs in tension 11 discussed in the companion paper, this study reports the development and validation of an 12 advanced FE model that can predict the overall behaviour and failure modes of ferritic stainless 13 steel bolted T-stubs subjected to tension. Key simulation strategies regarding the modelling of 14 bolt geometry and overcoming numerical instabilities are discussed. Following the 15 determination of material properties in the longitudinal, transverse and diagonal direction 16 reported in the companion paper, the effect of allowing for anisotropy in the FE simulations is 17 investigated and modelling recommendations for its inclusion in FE models are made. 18 Moreover, the effect of bolt end and edge spacing on the joint plastic resistance, ultimate 19 capacity, ductility as well as overall response is comprehensively discussed by inspecting the 20 stress distribution through the plate thickness at various locations along the T-stub, thus 21 revealing both the flexural and the membrane component of the load transfer mechanism. The 22 numerical results were validated against the experimental results reported in the companion 23 paper in terms of predicted plastic and ultimate resistance, ductility and obtained failure modes. 24 On the basis of the obtained results and the discussion, modelling recommendations for the 25 simulation of stainless steel T-stubs are made. 26 Orhan Yapici*, Marios Theofanous, Huanxin Yuan, Samir Dirar, Sheida Afshan. (2022) Numerical simulation and design of ferritic stainless steel bolted T-stubs in tension. Journal of Constructional Steel Research. https://doi.org/10.1016/j.jcsr.2022.107555
Numerical simulation and design of ferritic stainless steel bolted T-stubs in tension
Jun 14, 2023
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