Tensile Property Test for a New Type of GFRP-Steel Composite Bars
Tensile tests were conducted on a new type of GFRP-steel composite bars,the failure process and mechanical performance indicators of the composite bars were analyzed.A theoretical model of stress-strain relations for the new type of GFRP-steel composite bars was constructed,and compared with the test results for analysis.The results showed that the stress-strain curves of the GFRP-steel composite bars exhibited obvious bilinear characteristics,and it still maintained a stable deformation resistance after the yielding of the inner core steel rebars.Furthermore,the theoretical model of stress-strain relations established in the paper matched well with the test results,demonstrating the effectiveness of the model in reflecting the tensile properties of the composite bars.
GFRP-steel composite bartensile propertiesbilinear characteristicstheoretical model