In order to study the connection performance of fiber composite joint with built-in thin steel plate,uniaxial tensile test was carried out on the structure of the joint.Then ABAQUS was used to study the geometric connection parameters,such as end-diameter ratio(E/D),side-diameter ratio(Sw/D),line-diameter ratio(S/D)and aperture thickness ratio(D/t),which affect the connection performance.The results showed that:the fiber composite joint with built-in steel plate had greater stiffness than the fiber composite joint without built-in steel plate,the peak load and peak displace-ment were increased by about 50％and 58％respectively,the stress concentration phenomenon around the hole was reduced,the failure mode was improved,and the bearing capacity and ductility perform-ance are better.The geometric connection parameters had a great impact on the bearing capacity and failure mode of the joint.To improve the connection efficiency,it was recommended that Sw/D≥2,E/D≥4,4≤S/D≤5,1.6≤D/t≤2.
关键词
连接接头/纤维复合材料/内置薄钢板/力学性能/有限元分析
Key words
connecting joints/fiber composite materials/built-in thin steel plate/mechanical properties/finite element analysis
维普
万方数据