Design and analysis of automotive carbon fiber composite bumper beam based on finite element analysis

Abstract

In this article, the most important part of the automotive front bumper system, namely, the bumper beam, is studied by changing the material and thickness to improve the crashworthiness performance in low-velocity impact. According to the low-speed standard of automotives stated in E.C.E. United Nations Agreement, Regulation no. 42, the low-velocity impact simulation based on finite element analysis is carried out. Lightweight is the main purpose of this article. First, the bumper beam analysis is accomplished for carbon fiber composite and steel material to analyze their deformation, weight, impact force, energy absorption, and the acceleration of the impactor. As a consequence, the bumper beam made by carbon fiber composite achieves better impact behavior. Second, on the purpose of lightweight, the bumper beams of different thickness including 5.4, 6, 6.6, and 7.2 mm are investigated. The results show that the 5.4 mm bumper beam is the best selection without sacrificing the impact performance. Third, according to the stress distribution, the thickness distribution of the bumper beam is changed to get better lightweight results. It is indicated that the weight of the improved bumper beam is further reduced and the impact performance is not weakened.

Design and Analysis of Carbon Fibre Composite MonorackArm for Motorcycle

“…Tensile experiment parameters adjusted in the test settings prior to starting the experiment. The parameter shown in Table 3 was obtained from a research paper which investigated the tensile properties of carbon fibre woven at 0/90° [9].…”

“…Mass production of carbon fibre is being limited due to the carbon fibre production process which involves high energy demand associated with environmental impacts. Carbon Fibre Reinforced Polymer (CFRP) are known as the 21st century advanced composite material being integrated in automotive field as it comprises of numerous advantages [9].…”

Improvement of impact protection by KORDCARBON-CPREG-200-T-3K-EP1-4-A composite

“…Impact protection is an important task in many modes of transport. Composites are good energy absorbers, whether used as a part of a vehicle [1,2] or part of a human body protector [3].…”

Milling Examination on CFRP Composites for Automobile Structures.

“…Masilamani et al [1] reviewed on the usage of carbon fiber reinforced polymers in automobiles and concluded that 60% of weight is reduced when steel is replaced with CFRP and 40% of weight is reduced when aluminum is replaced as CFRP. Tie Wang and Yon gang Li [2] is analyzed the impact behavior of various thickness of car bumper. By changing the thickness weight is decreased and impact performance is better.…”