On design optimization of a composite impact attenuator under dynamic axial crushing

Boria, Simonetta; Obradovic, Jovan; Belingardi, Giovanni

doi:10.5937/fmet1703435b

Cited by 6 publications

(3 citation statements)

References 18 publications

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“…Then, the winding angle of 35 degrees showed more energy absorbed for less compressive strength than other angles. The utilization of composite material (including carbon fibers) was also studied in [11][12][13]. The papers brought insights about IA design, testing, numerical analysis, and optimization.…”

Section: Introductionmentioning

confidence: 99%

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On Aluminum Honeycomb Impact Attenuator Designs for Formula Student Competitions

Krzikalla

Měsíček

et al. 2020

Symmetry

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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.

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Section: Introductionmentioning

confidence: 99%

“…The papers brought insights about IA design, testing, numerical analysis, and optimization. Optimization methods examined in [11] allowed authors to design an IA with 14% better energy absorption.…”

Section: Introductionmentioning

confidence: 99%

On Aluminum Honeycomb Impact Attenuator Designs for Formula Student Competitions

Krzikalla

Měsíček

et al. 2020

Symmetry

View full text Add to dashboard Cite

show abstract

“…An alternative to the direct numerical approach is numerical optimization [23][24][25][26][27]. For example, geometry optimization can be used to control the global crush behavior of a Carbon Fiber Reinforced Plastic (CFRP) component by triggering certain failure modes and thus avoiding catastrophic collapse [25,28].…”

Section: Introductionmentioning

confidence: 99%