Efficient finite element modelling of timber beams strengthened with bonded fibre reinforced polymers

Valipour, HR; Crews, K

Efficient finite element modelling of timber beams strengthened with bonded fibre reinforced polymers

Valipour, HR Crews, K

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Publication Type:: Journal Article
Citation:: Construction and Building Materials, 2011, 25 (8), pp. 3291 - 3300
Issue Date:: 2011-08-01

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Field	Value	Language
dc.contributor.author	Valipour, HR	en_US
dc.contributor.author	Crews, K https://orcid.org/0000-0003-1450-1423	en_US
dc.date.issued	2011-08-01	en_US
dc.identifier.citation	Construction and Building Materials, 2011, 25 (8), pp. 3291 - 3300	en_US
dc.identifier.issn	0950-0618	en_US
dc.identifier.uri	http://hdl.handle.net/10453/18727
dc.description.abstract	This paper presents development and application of a simple and efficient frame finite element (FE) able to estimate the load-carrying capacity of timber beams flexurally strengthened with externally bonded fibre reinforced polymer (FRP) strips and near-surface mounted FRP bars. The developed element is able to model collapse due to timber crushing under compression, timber fracture under tension and FRP rupture and it is developed in the framework of a flexibility-based fibre element formulation. Furthermore, a novel method based on central difference method in conjunction with composite Simpson's integration scheme along the element axis is developed to take account of shear-slip. The developed model is employed to predict the loading capacity and the applied load-mid span deflection response of timber beams strengthened with FRP and the numerically simulated responses agree well with the corresponding experimental results. The major features of this frame FE are its simplicity and efficiency compared with more complex and computationally expensive FEs which makes it a suitable tool for practical use in design-oriented parametric studies. © 2011 Elsevier Ltd. All rights reserved.	en_US
dc.relation.ispartof	Construction and Building Materials	en_US
dc.relation.isbasedon	10.1016/j.conbuildmat.2011.03.017	en_US
dc.subject.classification	Building & Construction	en_US
dc.title	Efficient finite element modelling of timber beams strengthened with bonded fibre reinforced polymers	en_US
dc.type	Journal Article
utslib.citation.volume	8	en_US
utslib.citation.volume	25	en_US
utslib.for	120202 Building Science and Techniques	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	1202 Building	en_US
dc.location.activity	WOS:000291411200018	en_US
dc.location.activity	Rotorua, New Zealand
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	8	en_US
pubs.publication-status	Published	en_US
pubs.volume	25	en_US

Abstract:

This paper presents development and application of a simple and efficient frame finite element (FE) able to estimate the load-carrying capacity of timber beams flexurally strengthened with externally bonded fibre reinforced polymer (FRP) strips and near-surface mounted FRP bars. The developed element is able to model collapse due to timber crushing under compression, timber fracture under tension and FRP rupture and it is developed in the framework of a flexibility-based fibre element formulation. Furthermore, a novel method based on central difference method in conjunction with composite Simpson's integration scheme along the element axis is developed to take account of shear-slip. The developed model is employed to predict the loading capacity and the applied load-mid span deflection response of timber beams strengthened with FRP and the numerically simulated responses agree well with the corresponding experimental results. The major features of this frame FE are its simplicity and efficiency compared with more complex and computationally expensive FEs which makes it a suitable tool for practical use in design-oriented parametric studies. © 2011 Elsevier Ltd. All rights reserved.

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http://hdl.handle.net/10453/18727