A large torsion beam finite element model for tapered thin-walled open cross sections beams

Refined spatial beam-column element for second-order analysis of lattice shell structure

“…He also studied the influence of shear deformation on the beam element [16] and proposed a systemic analysis and design method of the steel frames [17]. Mohri et al [18] developed a non-linear model that is performed in large torsion context according to a new kinematics that accounts for large torsion, flexural-torsional coupling and the presence of tapering terms in bending and torsion. Asgarian B et al [19] investigated a numerical model based on the power series method for the lateral buckling stability of tapered thin-walled beams with arbitrary crosssections and boundary conditions.…”

Nonlocal Analysis of the Flexural–Torsional Stability for FG Tapered Thin-Walled Beam-Columns

“…A third-order shear deformable beam theory was adopted by Nami et al [ 51 ] for a thermal stability analysis of FG nanoplates. Among tapered member applications, a novel beam finite element was introduced by Mohri et al [ 52 ], together with a large torsion assumption, to estimate the stability resistance of tapered thin-walled beams. A semi-analytical procedure based on the Ritz technique was employed by Kuś [ 53 ] for analyzing the lateral stability of linearly tapered-web and/or flange doubly-symmetric I-beams.…”

Collapse of I-section tapered beam-columns in medium-span steel frames: Finite element model validation and parameters influence evaluation

“…A commonly adopted alternative to those methods, as recommended by design codes, is the use of advanced (physically and geometrically nonlinear) finite element analysis (FEA), which is obviously unfeasible in current design practice due to their time and know-how requirements (besides involving expensive FEA software). Although the large amount of research performed in the last few decades, either concerning i) numerical/analytical formulations (Asgarian and Soltani 2011, Trahair 2014, Mohri et al 2015, Ghadban et al 2017, Kim and Jang 2017, Balduzzi et al 2017, Lee and Lee 2018, or ii) design methods (Marques et al 2012, Zhang et al 2013, Papp 2016, it is still imperative the development of groundbreaking (i.e., simultaneously accurate, easy-to-use, versatile, efficient and affordable) design rules/tools for tapered steel members.…”