Experimental flexural behaviors of CFRP strengthened aluminum beams
| Autor: | Kebin Jiang, Yiqiang Tu, Pengcheng Zhu, Mingkang Gou, Li Ning, Yinzhi Zhou, Hualin Fan |
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| Rok vydání: | 2014 |
| Předmět: |
Hybrid Bond
Materials science business.industry chemistry.chemical_element Flexural rigidity Structural engineering Fibre-reinforced plastic Load carrying chemistry Flexural strength Aluminium Ceramics and Composites Composite material business Reinforcement Beam (structure) Civil and Structural Engineering |
| Zdroj: | Composite Structures. 116:761-771 |
| ISSN: | 0263-8223 |
| DOI: | 10.1016/j.compstruct.2014.06.012 |
| Popis: | To improve the flexural rigidity and load carrying capacity, aluminum beams were strengthened by carbon fiber reinforced plastic (CFRP) sheets. A hybrid bond technique with mechanical fastening was suggested to improve the reinforcement efficiency. Four-point-bending experiments were carried out to reveal the flexural behaviors and failure styles of the strengthened beams. Flexural rigidity can be increased at a ratio of 32.8%. The hybrid bond technique changes the failure style from normal debonding to tangential slippery and improves the load carrying capacity at a ratio of 31.13%. It is found that CFRP hybrid bond method is more efficient for aluminum members than steel ones. A simplified analytical method based on full interaction between the beam and the reinforcement was suggested to predict the nonlinear behaviors, flexural rigidity and load carrying of the strengthened beam. Based on the experiments and analyses, a design procedure was put forward for CFRP sheets to strengthen aluminum structural members using hybrid bond technique. |
| Databáze: | OpenAIRE |
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