On Aluminum Honeycomb Impact Attenuator Designs for Formula Student Competitions

The use of impact attenuators (IA) is important for vehicles as they absorb the kinetic energy exerted from the car crashes to protect the drivers from any possible injuries. Under the framework of the Formula Student (FS) competition, we investigate various designs of IA made of aluminum honeycomb...

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Bibliographic Details
Published in:Symmetry (Basel) 2020-10, Vol.12 (10), p.1647
Main Authors: Quoc, Phu Ma, Krzikalla, David, Mesicek, Jakub, Petru, Jana, Smiraus, Jakub, Sliva, Ales, Poruba, Zdenek
Format: Article
Language:English
Subjects:
Aluminum
aluminum honeycomb
Attenuators
Carbon fibers
Composite materials
Crashes
Crushing
Design
Energy
formula student
Honeycomb structures
impact attenuator
Investigations
Kinetic energy
Porous materials
Titanium alloys
Traffic accidents
Weight reduction
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Summary:The use of impact attenuators (IA) is important for vehicles as they absorb the kinetic energy exerted from the car crashes to protect the drivers from any possible injuries. Under the framework of the Formula Student (FS) competition, we investigate various designs of IA made of aluminum honeycomb material. Specifically, the crushing behavior of the honeycomb structure is investigated from the theoretical point of view and later verified with numerical simulations. To achieve the desired crushing behavior of the aluminum honeycomb structure, apart from the so-called pre-crushing method, another way to pre-process the aluminum honeycomb is proposed. Modification on the aluminum honeycomb is done in a symmetric manner to ensure the same uniform crushing behavior on the two sides of the mirror plane of the car. Different variations presented in this paper shed a light on future aluminum honeycomb IA designs in the context of FS competitions.
ISSN:2073-8994
2073-8994
DOI:10.3390/sym12101647