The Experimental Research of Carbon Fiber Confined Concrete Considering Strain Rate under Uniaxial Compression
In the three kinds of constraint ratio (ξ = 0.065, ξ= 0.1025, ξ= 0.205), respectively, by the comparative analysis of 55 prism specimens using CFRP confined concrete(strain ratses are 10-5/s-1, 10-4/s-1, 10-3/s-1 and 10-2/s-1), the stress-strain curves, strength, strain, elastic modulus and Poisson's ratio were studied at different constraints and different strain rate. The results show that: (1) with the strain rate increased,the inflexion strength and ultimate strength of concrete were improved; (2) with the strain rate increased, the static and dynamic elastic modulus increased slightly; (3) Poisson's ratio increased slightly with the growth strain rate.
Y. M. Zhang et al., "The Experimental Research of Carbon Fiber Confined Concrete Considering Strain Rate under Uniaxial Compression", Advanced Materials Research, Vols. 163-167, pp. 1485-1488, 2011