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Development of the composite bumper beam for passenger cars

机译：乘用车复合保险杠横梁的开发

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摘要

The fuel efficiency and emission gas regulation of passenger cars are two important issues in these days. The best way to increase the fuel efficiency without sacrificing safety is to employ fibre reinforced composite materials in the body of cars. In this work, a new composite bumper that has two pads at the ends of the bumper was developed. The two pads were designed to hit the front two tyres of the car when the bumper brackets collapsed during collision. The end of the bumper beam was designed to have a tapered section to absorb energy by progressive buckling when the pads hit the rims of wheels after collapsing tyres. The composite bumper beam was made of glass fibre fabric epoxy composite material except the elbow section. The elbow section was made of carbon fibre epoxy composite material to increase bending stiffness. From the static bending test of the prototype composite bumper, it was found that the weight of the composite bumper beam was only 30% that of the steel bumper beam without sacrificing the static bending strength.
机译：如今，乘用车的燃油效率和废气排放法规是两个重要问题。在不牺牲安全性的情况下提高燃油效率的最佳方法是在车体中采用纤维增强复合材料。在这项工作中，开发了一种新的复合材料保险杠，该保险杠在保险杠的末端具有两个垫片。当保险杠支架在碰撞过程中倒塌时，这两个护垫设计成可撞击汽车的前两个轮胎。保险杠横梁的末端设计成具有锥形截面，以便在轮胎塌陷后垫块撞击车轮的轮辋时，通过逐渐屈曲来吸收能量。除肘部外，复合保险杠梁由玻璃纤维织物环氧复合材料制成。弯头部分由碳纤维环氧复合材料制成，以增加弯曲刚度。从原型复合保险杠的静态弯曲试验中发现，复合保险杠梁的重量仅为钢制保险杠梁的30％，而不会牺牲静态弯曲强度。

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  • 来源
    《Composite Structures》 |1995年第4期|p.491-499|共9页
  • 作者

    Seong Sik Cheon; Jin Ho Choi; Dai Gil Lee;

  • 作者单位

    Laboratory for Advanced Composite Materials, Korea Advanced Institute of Science and Technology, Kusong-dong, Yusonggu, Taejon-shi, Korea 305-701;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工程材料学;
  • 关键词

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