Influence of residual stresses on the cross-section stability of WF shapes. Gerard, L. & Boissonnade, N. In San Antonio, TX, United states, 2024.
abstract   bibtex   
Steel WF or I-shapes are usually fabricated by either hot-rolling or welding. Both manufacturing processes produce residual stresses that affect the stability behavior and resistance, namely at the member level (e.g., flexural or lateral torsional buckling). Yet, at the cross-sectional level, design provisions typically ignore the influence of residual stresses and propose identical sets of equations for hot-rolled and for welded sections. This paper numerically evidences that this should be improved and investigates how much more detrimental welded residual stresses patterns can be in comparison to hot-rolled ones, in various contexts. The results of detailed non-linear shell F.E. simulations on various geometries, slenderness, material grades and load cases are reported and analyzed, and recommendations for code improvements are proposed.
© SSRC 2024. All rights reserved.
@inproceedings{20242016090467 ,
language = {English},
copyright = {Compilation and indexing terms, Copyright 2025 Elsevier Inc.},
copyright = {Compendex},
title = {Influence of residual stresses on the cross-section stability of WF shapes},
journal = {Proceedings of the Annual Stability Conference Structural Stability Research Council, SSRC 2024},
author = {Gerard, Lucile and Boissonnade, Nicolas},
year = {2024},
address = {San Antonio, TX, United states},
abstract = {<div data-language="eng" data-ev-field="abstract">Steel WF or I-shapes are usually fabricated by either hot-rolling or welding. Both manufacturing processes produce residual stresses that affect the stability behavior and resistance, namely at the member level (e.g., flexural or lateral torsional buckling). Yet, at the cross-sectional level, design provisions typically ignore the influence of residual stresses and propose identical sets of equations for hot-rolled and for welded sections. This paper numerically evidences that this should be improved and investigates how much more detrimental welded residual stresses patterns can be in comparison to hot-rolled ones, in various contexts. The results of detailed non-linear shell F.E. simulations on various geometries, slenderness, material grades and load cases are reported and analyzed, and recommendations for code improvements are proposed.<br/></div> © SSRC 2024. All rights reserved.},
key = {Residual stresses},
%keywords = {Hot rolled steel;Hot rolling;Welding;},
%note = {Design provisions;Fe simulation;Flexural-torsional buckling;Hot-rolled;Lateral-torsional buckling;Level design;Manufacturing process;Non linear;Stability behavior;Stress patterns;},
}

Downloads: 0