Imperial College London
Alternate

Professor M Ahmer Wadee

Faculty of Engineering, Department of Civil and Environmental Engineering

Professor of Nonlinear Mechanics
 
 
 
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Contact

 

+44 (0)20 7594 6050a.wadee Website

 
 
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Assistant

 

Ms Ruth Bello +44 (0)20 7594 6040

 
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Location

 

421Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Liu:2016:10.1016/j.tws.2016.04.027,
author = {Liu, EL and Wadee, MA},
doi = {10.1016/j.tws.2016.04.027},
journal = {Thin-Walled Structures},
pages = {228--243},
title = {Mode interaction in perfect and imperfect thin-walled I-section struts susceptible to global buckling about the strong axis},
url = {http://dx.doi.org/10.1016/j.tws.2016.04.027},
volume = {106},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A recently developed analytical model for a perfect I-section strut experiencing a nonlinear interaction between local buckling and global buckling about the strong axis is enhanced and subsequently extended. The initial enhancement is achieved by devising a simplified and calibrated model that provides an improved prediction of the local buckling load. A purely numerical model is then constructed within the commercial finite element (FE) software Abaqus for validation purposes and excellent comparisons are observed, demonstrating that the analytical model is considerably improved on previous work. The model for interactive buckling is then developed subsequently to include the effects of global and local geometric imperfections,  which are introduced individually and in combination. The strut is found to be sensitive to all considered shapes of imperfection and the combined imperfection case correlates excellently with an equivalent FE model, particularly in the neighbourhood of the secondary instability that leads to mode interaction. This demonstrates that the enhanced analytical model predicts the actual load carrying capacity and the structural mechanics accurately.
AU  - Liu,EL
AU  - Wadee,MA
DO  - 10.1016/j.tws.2016.04.027
EP  - 243
PY  - 2016///
SN  - 0263-8231
SP  - 228
TI  - Mode interaction in perfect and imperfect thin-walled I-section struts susceptible to global buckling about the strong axis
T2  - Thin-Walled Structures
UR  - http://dx.doi.org/10.1016/j.tws.2016.04.027
UR  - http://hdl.handle.net/10044/1/32165
VL  - 106
ER  -
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