Fatigue strengthening of cracked steel beams with CFRP plates

D. Fernando; A. Schumacher; M. Motavalli; Jinguang Teng; T. Yu; E. Ghafoori

doi:10.1115/IMECE2010-39861

Fatigue strengthening of cracked steel beams with CFRP plates

D. Fernando, A. Schumacher, M. Motavalli, Jinguang Teng, T. Yu, E. Ghafoori

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

8 Citations (Scopus)

Abstract

Externally bonded FRP systems offer an attractive method to improve the fatigue life of steel beams. The fatigue performance of such a strengthened beam can be further enhanced by prestressing the bonded FRP reinforcement. While a number of studies have been conducted on the fatigue strengthening of steel beams using FRP, they have generally been concerned with the overall performance of the strengthened beam, with limited attention to the behaviour of the FRP-to-steel interface and its effects. Against this background, this paper presents the preliminary results of an ongoing experimental program aiming at investigating the behaviour and fatigue failure mechanism of FRP-strengthened cracked steel beams under fatigue cyclic loading, with particular emphasis on the debonding process of the FRP reinforcement and the effect of debonding on crack propagation. The effects of prestressing and debonding on the fatigue performance of the strengthened beam are clearly demonstrated by the test results.

Original language	English
Title of host publication	ASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010
Pages	271-276
Number of pages	6
Volume	9
DOIs	https://doi.org/10.1115/IMECE2010-39861
Publication status	Published - 1 Dec 2010
Event	ASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010 - Vancouver, BC, Canada Duration: 12 Nov 2010 → 18 Nov 2010

Conference

Conference	ASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010
Country/Territory	Canada
City	Vancouver, BC
Period	12/11/10 → 18/11/10

ASJC Scopus subject areas

Mechanical Engineering

More information

10.1115/IMECE2010-39861

Cite this

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abstract = "Externally bonded FRP systems offer an attractive method to improve the fatigue life of steel beams. The fatigue performance of such a strengthened beam can be further enhanced by prestressing the bonded FRP reinforcement. While a number of studies have been conducted on the fatigue strengthening of steel beams using FRP, they have generally been concerned with the overall performance of the strengthened beam, with limited attention to the behaviour of the FRP-to-steel interface and its effects. Against this background, this paper presents the preliminary results of an ongoing experimental program aiming at investigating the behaviour and fatigue failure mechanism of FRP-strengthened cracked steel beams under fatigue cyclic loading, with particular emphasis on the debonding process of the FRP reinforcement and the effect of debonding on crack propagation. The effects of prestressing and debonding on the fatigue performance of the strengthened beam are clearly demonstrated by the test results.",

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Fernando, D, Schumacher, A, Motavalli, M, Teng, J , Yu, T & Ghafoori, E 2010, Fatigue strengthening of cracked steel beams with CFRP plates. in ASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010. vol. 9, pp. 271-276, ASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010, Vancouver, BC, Canada, 12/11/10. https://doi.org/10.1115/IMECE2010-39861

Fatigue strengthening of cracked steel beams with CFRP plates. / Fernando, D.; Schumacher, A.; Motavalli, M. et al.
ASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010. Vol. 9 2010. p. 271-276.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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AU - Fernando, D.

AU - Schumacher, A.

AU - Motavalli, M.

AU - Teng, Jinguang

AU - Yu, T.

AU - Ghafoori, E.

PY - 2010/12/1

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AB - Externally bonded FRP systems offer an attractive method to improve the fatigue life of steel beams. The fatigue performance of such a strengthened beam can be further enhanced by prestressing the bonded FRP reinforcement. While a number of studies have been conducted on the fatigue strengthening of steel beams using FRP, they have generally been concerned with the overall performance of the strengthened beam, with limited attention to the behaviour of the FRP-to-steel interface and its effects. Against this background, this paper presents the preliminary results of an ongoing experimental program aiming at investigating the behaviour and fatigue failure mechanism of FRP-strengthened cracked steel beams under fatigue cyclic loading, with particular emphasis on the debonding process of the FRP reinforcement and the effect of debonding on crack propagation. The effects of prestressing and debonding on the fatigue performance of the strengthened beam are clearly demonstrated by the test results.

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Fatigue strengthening of cracked steel beams with CFRP plates

Abstract

Conference

ASJC Scopus subject areas

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