Residual stresses in steel members: a review of available analytical expressions

M Abambres, WM Quach - International Journal of Structural Integrity, 2016 - emerald.com
Purpose–Although the actual residual stress distribution in any structural steel member can
be only obtained by experimental measurements, it is known to be a difficult, tedious and …

State-of-the-art review on measurement techniques and numerical modeling of geometric imperfections in cold-formed steel members

R Aktepe, BG Erkal - Journal of Constructional Steel Research, 2023 - Elsevier
Cold-formed steel (CFS) members are susceptible to geometric imperfections due to the
high length-to-thickness ratio of the flat partitions, in other words, high slenderness …

Hybrid artificial intelligence approaches for predicting critical buckling load of structural members under compression considering the influence of initial geometric …

HB Ly, LM Le, HT Duong, TC Nguyen, TA Pham… - Applied Sciences, 2019 - mdpi.com
The main aim of this study is to develop different hybrid artificial intelligence (AI)
approaches, such as an adaptive neuro-fuzzy inference system (ANFIS) and two ANFISs …

Geometric imperfection measurements and validations on cold-formed steel channels using 3D noncontact laser scanner

S Selvaraj, M Madhavan - Journal of Structural Engineering, 2018 - ascelibrary.org
Abstract A three-dimensional (3D) noncontact laser-scanning method to quantify the
deviations in cold-formed steel (CFS) channel sections (plain and lipped) is presented. The …

[HTML][HTML] An in-depth comparative FEA on through-thickness residual stresses in press-braked cold-formed steel section

A Mutafi, JM Irwan, N Yidris, AM Ghaleb, S Al-Alimi… - Results in …, 2024 - Elsevier
The finite element (FE) is one of the techniques implemented to predict residual stresses.
The selection of the proper FE technique is essential to achieve accurate results. This study …

Geometric imperfections and ultimate capacity analysis of a steel lattice transmission tower

J Wang, HN Li, X Fu, Q Li - Journal of Constructional Steel Research, 2021 - Elsevier
The effect of geometric imperfections on the decrease of the ultimate capacity of
transmission towers has not been sufficiently studied. Despite bucking mode-shaped …

Finite element-based method for residual stresses and plastic strains in cold-formed steel hollow sections

Y Yao, WM Quach, B Young - Engineering Structures, 2019 - Elsevier
Residual stresses and plastic strains in steel tubes are induced by their manufacturing
processes and play an important role in determining their mechanical and structural …

Residual stresses in cold-formed steel members: Review of measurement methods and numerical modelling

A Díaz, II Cuesta, JM Alegre, AMP de Jesus… - Thin-Walled …, 2021 - Elsevier
The determination of residual stress distributions in cold-formed members is revisited
considering both experimental and numerical methodologies. Destructive, semi-destructive …

Prediction of the initial geometric imperfection magnitudes for numerical modeling of cold-formed steel channel sections

R Aktepe, BG Erkal - Structures, 2024 - Elsevier
CFS members are prone to geometric imperfections due to their slenderness, even if the
observed imperfections are minor. The main aims of this study are to gather imperfection …

Reliability calibrations for the design of cold-formed steel portal frames by advanced analysis

FS Cardoso, H Zhang, KJR Rasmussen, S Yan - Engineering Structures, 2019 - Elsevier
The steel industry is developing a design-by-advanced analysis specification for cold-
formed steel construction. This effort provides an opportunity to utilize the latest nonlinear …