Nonlinear finite element analysis of FRP strengthened RC beams

Prabin Pathak; Y. X. Zhang

doi:10.14455/isec.res.2015.115

Nonlinear finite element analysis of FRP strengthened RC beams

Prabin Pathak
, Y. X. Zhang

University of New South Wales

Research output: Chapter in Book / Conference Paper › Conference Paper › peer-review

1 Citation (Scopus)

Abstract

A simple, accurate and efficient finite element model is developed in ANSYS for numerical modelling of the nonlinear structural behavior of FRP strengthened RC beams under static loading in this paper. Geometric nonlinearity and material non-linear properties of concrete and steel rebar are accounted for this model. Concrete and steel reinforcement are modelled using Solid 65 element and Link 180 element, and FRP and adhesive are modelled using Shell 181element and Solid 45 element. Concrete is modelled using Nitereka and Neal's model for compression, and isotropic and linear elastic model before cracking with strength gradually reducing to zero after cracking for tension. For steel reinforcement, the elastic perfectly plastic material model is used. FRPs are assumed to be linearly elastic until rupture and epoxy is assumed to be linearly elastic. The new FE model is validated by comparing the computed results with those obtained from experimental studies.

Original language	English
Title of host publication	ISEC 2015 - 8th International Structural Engineering and Construction Conference
Subtitle of host publication	Implementing Innovative Ideas in Structural Engineering and Project Management
Editors	Swapan Saha, Yixia X. Zhang, S. Yazdani, Amarjit Singh
Publisher	ISEC Press
Pages	463-468
Number of pages	6
ISBN (Electronic)	9780996043717
DOIs	https://doi.org/10.14455/isec.res.2015.115
Publication status	Published - 2015
Externally published	Yes
Event	8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management, ISEC 2015 - Sydney, Australia Duration: 23 Nov 2015 → 28 Nov 2015

Publication series

Name	ISEC 2015 - 8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management

Conference

Conference	8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management, ISEC 2015
Country/Territory	Australia
City	Sydney
Period	23/11/15 → 28/11/15

Bibliographical note

Publisher Copyright:
Copyright © 2015 ISEC Press.

Keywords

Concrete beam
Fibre reinforced polymer (FRP)
Finite element model
Nonlinearity

Access to Document

10.14455/isec.res.2015.115

Cite this

Pathak, P., & Zhang, Y. X. (2015). Nonlinear finite element analysis of FRP strengthened RC beams. In S. Saha, Y. X. Zhang, S. Yazdani, & A. Singh (Eds.), ISEC 2015 - 8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management (pp. 463-468). (ISEC 2015 - 8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management). ISEC Press. https://doi.org/10.14455/isec.res.2015.115

Pathak, Prabin ; Zhang, Y. X. / Nonlinear finite element analysis of FRP strengthened RC beams. ISEC 2015 - 8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management. editor / Swapan Saha ; Yixia X. Zhang ; S. Yazdani ; Amarjit Singh. ISEC Press, 2015. pp. 463-468 (ISEC 2015 - 8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management).

@inproceedings{3774e7df27ab400d996a17e1b844134b,

title = "Nonlinear finite element analysis of FRP strengthened RC beams",

abstract = "A simple, accurate and efficient finite element model is developed in ANSYS for numerical modelling of the nonlinear structural behavior of FRP strengthened RC beams under static loading in this paper. Geometric nonlinearity and material non-linear properties of concrete and steel rebar are accounted for this model. Concrete and steel reinforcement are modelled using Solid 65 element and Link 180 element, and FRP and adhesive are modelled using Shell 181element and Solid 45 element. Concrete is modelled using Nitereka and Neal's model for compression, and isotropic and linear elastic model before cracking with strength gradually reducing to zero after cracking for tension. For steel reinforcement, the elastic perfectly plastic material model is used. FRPs are assumed to be linearly elastic until rupture and epoxy is assumed to be linearly elastic. The new FE model is validated by comparing the computed results with those obtained from experimental studies.",

keywords = "Concrete beam, Fibre reinforced polymer (FRP), Finite element model, Nonlinearity",

author = "Prabin Pathak and Zhang, \{Y. X.\}",

note = "Publisher Copyright: Copyright {\textcopyright} 2015 ISEC Press.; 8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management, ISEC 2015 ; Conference date: 23-11-2015 Through 28-11-2015",

year = "2015",

doi = "10.14455/isec.res.2015.115",

language = "English",

series = "ISEC 2015 - 8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management",

publisher = "ISEC Press",

pages = "463--468",

editor = "Swapan Saha and Zhang, \{Yixia X.\} and S. Yazdani and Amarjit Singh",

booktitle = "ISEC 2015 - 8th International Structural Engineering and Construction Conference",

}

Pathak, P & Zhang, YX 2015, Nonlinear finite element analysis of FRP strengthened RC beams. in S Saha, YX Zhang, S Yazdani & A Singh (eds), ISEC 2015 - 8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management. ISEC 2015 - 8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management, ISEC Press, pp. 463-468, 8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management, ISEC 2015, Sydney, Australia, 23/11/15. https://doi.org/10.14455/isec.res.2015.115

Nonlinear finite element analysis of FRP strengthened RC beams. / Pathak, Prabin; Zhang, Y. X.
ISEC 2015 - 8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management. ed. / Swapan Saha; Yixia X. Zhang; S. Yazdani; Amarjit Singh. ISEC Press, 2015. p. 463-468 (ISEC 2015 - 8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management).

Research output: Chapter in Book / Conference Paper › Conference Paper › peer-review

TY - GEN

T1 - Nonlinear finite element analysis of FRP strengthened RC beams

AU - Pathak, Prabin

AU - Zhang, Y. X.

PY - 2015

Y1 - 2015

N2 - A simple, accurate and efficient finite element model is developed in ANSYS for numerical modelling of the nonlinear structural behavior of FRP strengthened RC beams under static loading in this paper. Geometric nonlinearity and material non-linear properties of concrete and steel rebar are accounted for this model. Concrete and steel reinforcement are modelled using Solid 65 element and Link 180 element, and FRP and adhesive are modelled using Shell 181element and Solid 45 element. Concrete is modelled using Nitereka and Neal's model for compression, and isotropic and linear elastic model before cracking with strength gradually reducing to zero after cracking for tension. For steel reinforcement, the elastic perfectly plastic material model is used. FRPs are assumed to be linearly elastic until rupture and epoxy is assumed to be linearly elastic. The new FE model is validated by comparing the computed results with those obtained from experimental studies.

AB - A simple, accurate and efficient finite element model is developed in ANSYS for numerical modelling of the nonlinear structural behavior of FRP strengthened RC beams under static loading in this paper. Geometric nonlinearity and material non-linear properties of concrete and steel rebar are accounted for this model. Concrete and steel reinforcement are modelled using Solid 65 element and Link 180 element, and FRP and adhesive are modelled using Shell 181element and Solid 45 element. Concrete is modelled using Nitereka and Neal's model for compression, and isotropic and linear elastic model before cracking with strength gradually reducing to zero after cracking for tension. For steel reinforcement, the elastic perfectly plastic material model is used. FRPs are assumed to be linearly elastic until rupture and epoxy is assumed to be linearly elastic. The new FE model is validated by comparing the computed results with those obtained from experimental studies.

KW - Concrete beam

KW - Fibre reinforced polymer (FRP)

KW - Finite element model

KW - Nonlinearity

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DO - 10.14455/isec.res.2015.115

M3 - Conference Paper

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T3 - ISEC 2015 - 8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management

SP - 463

EP - 468

BT - ISEC 2015 - 8th International Structural Engineering and Construction Conference

A2 - Saha, Swapan

A2 - Zhang, Yixia X.

A2 - Yazdani, S.

A2 - Singh, Amarjit

PB - ISEC Press

T2 - 8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management, ISEC 2015

Y2 - 23 November 2015 through 28 November 2015

ER -

Pathak P, Zhang YX. Nonlinear finite element analysis of FRP strengthened RC beams. In Saha S, Zhang YX, Yazdani S, Singh A, editors, ISEC 2015 - 8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management. ISEC Press. 2015. p. 463-468. (ISEC 2015 - 8th International Structural Engineering and Construction Conference: Implementing Innovative Ideas in Structural Engineering and Project Management). doi: 10.14455/isec.res.2015.115

Nonlinear finite element analysis of FRP strengthened RC beams

Abstract

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Bibliographical note

Keywords

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