Automotive Innovation ›› 2020, Vol. 3 ›› Issue (3): 280-295.doi: 10.1007/s42154-020-00109-x
• • 上一篇
Flexural Performance of Steel–FRP Composites for Automotive Applications
Ye Lin1 • Junying Min1,2 • Hao Teng1 • Jianping Lin1 • Jiahao Hu1 • Nanjie Xu1
- 1 School of Mechanical Engineering, Tongji University, Shanghai 201804, China
2 Key Lab of Vehicle Aerodynamics and Vehicle Thermal Management Systems of Shanghai, Tongji University, Shanghai 201804, China
Flexural Performance of Steel–FRP Composites for Automotive Applications
Ye Lin1 • Junying Min1,2 • Hao Teng1 • Jianping Lin1 • Jiahao Hu1 • Nanjie Xu1
- 1 School of Mechanical Engineering, Tongji University, Shanghai 201804, China
2 Key Lab of Vehicle Aerodynamics and Vehicle Thermal Management Systems of Shanghai, Tongji University, Shanghai 201804, China
摘要：
The design of hybrid structure offers an attractive solution to enhance strength and structural stiffness as well as to achieve lightweight effect and cost reduction. The applications of steel–FRP (fiber-reinforced polymer) composites in transportation and civil engineering have been comprehensively reviewed. In order to apply hybrid structures to car body parts such as B-pillar, flexural performance of steel–FRP composites is investigated by means of three-point bending test in this study. An analytical model is deduced to calculate the initial stiffness, the bending load and the energy absorption of steel–FRP composites. Steel–CFRP (carbon fiber-reinforced polymer) and steel–AFRP (aramid fiber-reinforced polymer) composites are experimentally studied and discussed. The results demonstrate that the steel–FRP composites exhibit significantly higher load-carrying capabilities and initial stiffnesses along with larger energy absorptions in the bending process compared to the single steel sheet.