Iterative global-local methods to consider the local deformation effects in the analysis of thin-walled beams

Afnani Esfandabadi, Ashkan

Iterative global-local methods to consider the local deformation effects in the analysis of thin-walled beams

Afnani Esfandabadi, Ashkan

Permalink

Publication Type:: Thesis
Issue Date:: 2016

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Adobe PDF

Download contents and abstractAdobe PDF (126.27 kB)

Adobe PDF

Download thesisAdobe PDF (5.8 MB)

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Afnani Esfandabadi, Ashkan
dc.date.accessioned	2016-11-20T22:03:02Z
dc.date.available	2016-11-20T22:03:02Z
dc.date.issued	2016
dc.identifier.uri	http://hdl.handle.net/10453/62955
dc.description	University of Technology Sydney. Faculty of Engineering and Information Technology.	en_AU
dc.description.abstract	Thin walled members are one of the most widely used structural elements in modern structures. Beam-type finite elements, which are conventionally used to model these members, cannot capture cross-sectional deformation. On the other hand, the use of two-dimensional shell-type elements leads to computationally uneconomical models that cannot be adopted for common engineering practice. The aim of this study is to develop a numerical method to incorporate the effect of local deformation on the global response of a thin-walled beam. For this purpose, the Iterative Global-local Method is developed in which beam elements are used as the global model while two-dimensional shell elements are placed at critical regions to constitute the local model. The two models are synchronised within each computational iteration via a kinematically appropriate mathematical link. The Iterative Global-local Method is developed for elastic and elasto-plastic material response, for fibre-reinforced composite laminates, for pipes and curved thin-walled members. The accuracy and efficiency verification of the method is verified through comparisons with detailed finite element modelling and test data from the literature.	en_AU
dc.format	Thesis (PhD)
dc.language.iso	en_AU	en_AU
dc.relation	https://opus.lib.uts.edu.au/bitstream/10453/62955/2/02whole.pdf
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	au.edu.uts.lib/ppc
dc.rights	The author owns the copyright in this thesis including all reproduction and reuse rights for the work. The work may not be altered without the permission of the copyright owner. Attribution is essential when quoting or paraphrasing from this thesis.
dc.subject	Walled members.	en
dc.subject	Beam-type finite elements.	en
dc.subject	Thin-walled beams.	en
dc.subject	Local deformation effects.	en
dc.subject	Cross-sectional deformation.	en
dc.subject	Iterative Global-local Method.	en
dc.title	Iterative global-local methods to consider the local deformation effects in the analysis of thin-walled beams	en_AU
dc.type	Thesis	en_AU
utslib.copyright.status	open_access

Abstract:

Thin walled members are one of the most widely used structural elements in modern structures. Beam-type finite elements, which are conventionally used to model these members, cannot capture cross-sectional deformation. On the other hand, the use of two-dimensional shell-type elements leads to computationally uneconomical models that cannot be adopted for common engineering practice. The aim of this study is to develop a numerical method to incorporate the effect of local deformation on the global response of a thin-walled beam. For this purpose, the Iterative Global-local Method is developed in which beam elements are used as the global model while two-dimensional shell elements are placed at critical regions to constitute the local model. The two models are synchronised within each computational iteration via a kinematically appropriate mathematical link. The Iterative Global-local Method is developed for elastic and elasto-plastic material response, for fibre-reinforced composite laminates, for pipes and curved thin-walled members. The accuracy and efficiency verification of the method is verified through comparisons with detailed finite element modelling and test data from the literature.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/62955