Iterative global-local approach to consider the local effects in dynamic analysis of beams

Erkmen, RE; Afnani, A

Iterative global-local approach to consider the local effects in dynamic analysis of beams

Erkmen, RE Afnani, A

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Publication Type:: Journal Article
Citation:: Coupled Systems Mechanics, 2017, 6 (4), pp. 501 - 522
Issue Date:: 2017-12-01

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Field	Value	Language
dc.contributor.author	Erkmen, RE	en_US
dc.contributor.author	Afnani, A	en_US
dc.date.issued	2017-12-01	en_US
dc.identifier.citation	Coupled Systems Mechanics, 2017, 6 (4), pp. 501 - 522	en_US
dc.identifier.issn	2234-2184	en_US
dc.identifier.uri	http://hdl.handle.net/10453/125894
dc.description.abstract	© 2017 Techno-Press, Ltd. This paper introduces a numerical procedure to incorporate elasto-plastic local deformation effects in the dynamic analysis of beams. The appealing feature is that simple beam type finite elements can be used for the global model which needs not to be altered by the localized elasto- plastic deformations. An overlapping local sophisticated 2D membrane model replaces the internal forces of the beam elements in the predefined region where the localized deformations take place. An iterative coupling technique is used to perform this replacement. Comparisons with full membrane analysis are provided in order to illustrate the accuracy and efficiency of the method developed herein. In this study, the membrane formulation is able to capture the elasto-plastic material behaviour based on the von Misses yield criterion and the associated flow rule for plane stress. The Newmark time integration method is adopted for the step-by-step dynamic analysis.	en_US
dc.relation.ispartof	Coupled Systems Mechanics	en_US
dc.relation.isbasedon	10.12989/csm.2017.6.4.501	en_US
dc.title	Iterative global-local approach to consider the local effects in dynamic analysis of beams	en_US
dc.type	Journal Article
utslib.citation.volume	4	en_US
utslib.citation.volume	6	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access
pubs.issue	4	en_US
pubs.publication-status	Published	en_US
pubs.volume	6	en_US

Abstract:

© 2017 Techno-Press, Ltd. This paper introduces a numerical procedure to incorporate elasto-plastic local deformation effects in the dynamic analysis of beams. The appealing feature is that simple beam type finite elements can be used for the global model which needs not to be altered by the localized elasto- plastic deformations. An overlapping local sophisticated 2D membrane model replaces the internal forces of the beam elements in the predefined region where the localized deformations take place. An iterative coupling technique is used to perform this replacement. Comparisons with full membrane analysis are provided in order to illustrate the accuracy and efficiency of the method developed herein. In this study, the membrane formulation is able to capture the elasto-plastic material behaviour based on the von Misses yield criterion and the associated flow rule for plane stress. The Newmark time integration method is adopted for the step-by-step dynamic analysis.

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http://hdl.handle.net/10453/125894