Study design and analysis of automobile bumper for pedestrian safety

14th International Conference on Science, Engineering and Technology

自然科学;工业技术

Kulkarni, Akash^1 ; Vora, Rushabh^1 ; Ravi, K.^1

School of Mechanical Engineering, VIT University, Vellore, Tamil Nadu

632014, India^1

关键词: Bumper beams;    Explicit dynamics;    Literature reviews;    Lower leg;    Material selection;    Maximum stress;    Study design;    Yield limit;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/263/6/062060/pdf
DOI  :  10.1088/1757-899X/263/6/062060

来源: IOP

【 摘 要 】

This paper aims to design and analyse the bumper beam structure, in order to ensure the protection of the pedestrians along with the occupants inside the vehicle. The concern shown towards the pedestrian safety is because, each year about 2,70,000 pedestrians are killed in road accidents that accounts to 22% of the total deaths. From the literature review, it was inferred that the mounting position of bumper and material selection play a crucial role in maximising the pedestrian safety. Hence in this paper, the effects of bumper mounting position and the bumper beam material have been studied, with reference to an explicit dynamic collision involving with a dummy human lower leg set-up. The acceptance of a particular mounting position/material was based on the fact that the maximum stress and deformation induced were less than the yield limits of the human leg form structure (representing the skin, femur and tibia).