Imperial College London

Professor M Ahmer Wadee

Faculty of EngineeringDepartment 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{Wadee:2014:10.1098/rspa.2014.0094,
author = {Wadee, MA and Farsi, M},
doi = {10.1098/rspa.2014.0094},
journal = {Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences},
title = {Cellular buckling in stiffened plates},
url = {http://dx.doi.org/10.1098/rspa.2014.0094},
volume = {470},
year = {2014}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - An analytical model based on variational principles for a thin-walled stiffened plate subjected to axial compression is presented. A system of nonlinear differential and integral equations is derived and solved using numerical continuation. The results show that the system is susceptible to highly unstable local–global mode interaction after an initial instability is triggered. Moreover, snap-backs in the response showing sequential destabilization and restabilization, known as cellular buckling or snaking, arise. The analytical model is compared to static finite element models for joint conditions between the stiffener and the main plate that have significant rotational restraint. However, it is known from previous studies that the behaviour, where the same joint is insignificantly restrained rotationally, is captured better by an analytical approach than by standard finite element methods; the latter being unable to capture cellular buckling behaviour even though the phenomenon is clearly observed in laboratory experiments.
AU - Wadee,MA
AU - Farsi,M
DO - 10.1098/rspa.2014.0094
PY - 2014///
SN - 1364-5021
TI - Cellular buckling in stiffened plates
T2 - Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
UR - http://dx.doi.org/10.1098/rspa.2014.0094
UR - http://rspa.royalsocietypublishing.org/content/470/2168/20140094
UR - http://hdl.handle.net/10044/1/17757
VL - 470
ER -