Eccentricity effects in the finite element modelling of composite beams

Erkmen, RE; Saleh, A

Eccentricity effects in the finite element modelling of composite beams

Erkmen, RE Saleh, A

Permalink

Publication Type:: Journal Article
Citation:: Advances in Engineering Software, 2012, 52 pp. 55 - 59
Issue Date:: 2012-01-01

Closed Access

	Filename	Description	Size
	2011006048OK.pdf		486.52 kB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Erkmen, RE	en_US
dc.contributor.author	Saleh, A https://orcid.org/0000-0002-2922-9701	en_US
dc.date.issued	2012-01-01	en_US
dc.identifier.citation	Advances in Engineering Software, 2012, 52 pp. 55 - 59	en_US
dc.identifier.issn	0965-9978	en_US
dc.identifier.uri	http://hdl.handle.net/10453/22238
dc.description.abstract	When modelling composite or built up beams using finite element software, analysts find it often convenient to connect two standard Euler-Bernoulli beam elements at the nodes by using a rigid bar or use master-slave type kinematic constraints to express the degrees-of-freedoms of one of the members in terms of the other. However, this type of modelling leads to eccentricity related numerical errors and special solutions that avoid eccentricity related issues may not be available for a design engineer due to the limitations of the software. In this study, a simple correction technique is introduced in the application of master-slave type constraints. It is shown that the eccentricity related numerical errors in the stiffness matrix can be completely corrected by using extra fictitious elements and springs. The correction terms are obtained by using the exact homogenous solution of the composite beam problem as the interpolation functions which impose the zero-slip constraint between the two components in the point-wise sense. The effects of the eccentricity related errors are demonstrated in numerical examples.	en_US
dc.relation.ispartof	Advances in Engineering Software	en_US
dc.relation.isbasedon	10.1016/j.advengsoft.2012.06.004	en_US
dc.subject.classification	Applied Mathematics	en_US
dc.title	Eccentricity effects in the finite element modelling of composite beams	en_US
dc.type	Journal Article
utslib.citation.volume	52	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	08 Information and Computing Sciences	en_US
utslib.for	09 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.publication-status	Published	en_US
pubs.volume	52	en_US

Abstract:

When modelling composite or built up beams using finite element software, analysts find it often convenient to connect two standard Euler-Bernoulli beam elements at the nodes by using a rigid bar or use master-slave type kinematic constraints to express the degrees-of-freedoms of one of the members in terms of the other. However, this type of modelling leads to eccentricity related numerical errors and special solutions that avoid eccentricity related issues may not be available for a design engineer due to the limitations of the software. In this study, a simple correction technique is introduced in the application of master-slave type constraints. It is shown that the eccentricity related numerical errors in the stiffness matrix can be completely corrected by using extra fictitious elements and springs. The correction terms are obtained by using the exact homogenous solution of the composite beam problem as the interpolation functions which impose the zero-slip constraint between the two components in the point-wise sense. The effects of the eccentricity related errors are demonstrated in numerical examples.

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

http://hdl.handle.net/10453/22238