Imperial College London
Emeritus Professor David Nethercot

Emeritus ProfessorDavidNethercot

Faculty of Engineering, Department of Civil and Environmental Engineering

Senior Research Investigator
 
 
 
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Contact

 

+44 (0)20 7594 6097d.nethercot

 
 
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Location

 

306Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Walport:2019:10.1201/9780429426506-192,
author = {Walport, F and Gardner, L and Nethercot, DA},
doi = {10.1201/9780429426506-192},
pages = {1107--1112},
title = {Structural stainless steel design by advanced analysis with csm strain limits},
url = {http://dx.doi.org/10.1201/9780429426506-192},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - Advanced structural analysis is commonly carried out using finite element models constructed using beam elements. Beam elements are incapable of capturing the effects of local buckling. However, disregarding local buckling can lead to overestimations of system strengths leading to unsafe design. In traditional design approaches, time-consuming semi-empirical design calculations are carried out on individual members. However, with improvements in computational power and advances in software, system-level advanced analysis is now viable for widespread use in design. A proposal is made herein, in which strain limits, defined by the Continuous Strength Method, are applied to simulate local buckling in beam element models, thereby controlling the extent to which spread of plasticity, moment redistribution and strain hardening can be exploited. Strains are averaged over a finite length of member to reflect the fact that local buckling requires a finite length over which to develop and to allow for local moment gradient effects. The paper includes a numerical assessment of the proposed method for design at member level, with both I-sections and hollow sections considered. Comparisons against current design methods confirm the significant benefits of the proposed approach. Application of the approach is particularly appropriate for stainless steel structures due to the high material value and the complexities presented by the nonlinear material stress-strain response for traditional design treatments.
AU  - Walport,F
AU  - Gardner,L
AU  - Nethercot,DA
DO  - 10.1201/9780429426506-192
EP  - 1112
PY  - 2019///
SP  - 1107
TI  - Structural stainless steel design by advanced analysis with csm strain limits
UR  - http://dx.doi.org/10.1201/9780429426506-192
ER  -
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