Fatigue life prediction for adhesive bonding in steel beams strengthened with a carbon fibre composite plate
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Bibliographic Details
| Author(s): |
Jun Deng
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Sustainable Infrastructure - Environment Friendly, Safe and Resource Efficient, Bangkok, Thailand, 9-11 September 2009 | ||||
| Published in: | IABSE Symposium Bangkok 2009 | ||||
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| Page(s): | 67-74 | ||||
| Total no. of pages: | 6 | ||||
| Year: | 2009 | ||||
| DOI: | 10.2749/222137809796078243 | ||||
| Abstract: |
This paper presents a theoretical and experimental study on the fatigue performance of the adhesive bonding in steel beams strengthened with a CFRP plate. Two phases of the fatigue life, including crack free life and crack propagation life, are considered. Ten steel beams strengthened with a bonded CFRP plate were tested under fatigue loading. An S-N curve based on the peak interfacial stresses is proposed to predict the fatigue life to crack initiation in the adhesive layer of the retrofitted beams. A formula based on the Paris Law is developed to predict the fatigue life during the crack propagation along the interface between the steel beam and adhesive layer as well. In addition, based on the findings obtained from the previous and present studies on adhesive bonding in the retrofitted beams, some design suggestions for steel beams strengthened by bonded CFRP plates are proposed. |
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| Keywords: |
adhesive bonding strengthening fatigue life CFRP plate steel beam
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