A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental Investigation of Bond between High-Modulus CFRP and Steel at Moderately Elevated Temperatures
AbstractThis paper presents the findings of a research study that was conducted to assess the effect of moderately elevated temperatures, up to 50°C, on the bond behavior of steel beams strengthened with externally bonded high-modulus carbon-fiber-reinforced polymer (CFRP) plates. In the first phase of the testing, seven steel-CFRP bonded double-lap shear coupons were tested at different temperatures to characterize the bond behavior. In the second phase of testing, steel beams were strengthened with different lengths of high-modulus CFRP plates and loaded under four-point bending at 25, 40, and 50°C. The test results indicate that the debonding load of bonded joints at 50°C is between 56 and 116% greater than the debonding load of similar joints at 25°C for the specific system tested in this study. This increase was attributed to an increase of the toughness of the tested adhesive at 50°C despite the lower tensile strength and stiffness of the material. The research findings suggest that the proposed strengthening system for steel beams is suitable for application at service temperatures up to 50°C.
Experimental Investigation of Bond between High-Modulus CFRP and Steel at Moderately Elevated Temperatures
AbstractThis paper presents the findings of a research study that was conducted to assess the effect of moderately elevated temperatures, up to 50°C, on the bond behavior of steel beams strengthened with externally bonded high-modulus carbon-fiber-reinforced polymer (CFRP) plates. In the first phase of the testing, seven steel-CFRP bonded double-lap shear coupons were tested at different temperatures to characterize the bond behavior. In the second phase of testing, steel beams were strengthened with different lengths of high-modulus CFRP plates and loaded under four-point bending at 25, 40, and 50°C. The test results indicate that the debonding load of bonded joints at 50°C is between 56 and 116% greater than the debonding load of similar joints at 25°C for the specific system tested in this study. This increase was attributed to an increase of the toughness of the tested adhesive at 50°C despite the lower tensile strength and stiffness of the material. The research findings suggest that the proposed strengthening system for steel beams is suitable for application at service temperatures up to 50°C.
Experimental Investigation of Bond between High-Modulus CFRP and Steel at Moderately Elevated Temperatures
Dawood, Mina (author) / Sahin, Mehmet Ugur
2016
Article (Journal)
English
BOND BEHAVIOR BETWEEN STEEL AND HIGH MODULUS CFRP PLATES AT MODERATLEY ELEVATED TEMPERATURES
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Bond characteristics between ultra high modulus CFRP laminates and steel
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