Optimization of a composite impact attenuator for a formula student car

Castro, Julio M.; Fontana, Marco; Araújo, Aurélio L.; Madeira, J.F.A.

doi:10.1080/15376494.2020.1712627

Cited by 5 publications

(2 citation statements)

References 12 publications

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“…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%

Methodology for parameter identification on a thermoplastic composite crash absorber by the Sequential Response Surface Method and Efficient Global Optimization

Raponi

Fiumarella

Boria

et al. 2021

Composite Structures

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Section: Introductionmentioning

confidence: 99%

Methodology for parameter identification on a thermoplastic composite crash absorber by the Sequential Response Surface Method and Efficient Global Optimization

Raponi

Fiumarella

Boria

et al. 2021

Composite Structures

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“…In addition, this angle orientation of carbon fiber for composite shell of attenuator gained the 14% mass reduction. They especially determined that the geometric design of attenuator could provide the mass reduction at the range of 14%-28% by protecting the crash safety [40]. In this study, the usability of E-Glass fiber reinforced aluminum-honeycomb sandwich composites was experimentally investigated to increase crashworthiness resistance and impact energy absorption ability and to make the car lighter by using E-Glass fiber reinforced sandwich composites as a crash protection bar (Side impact bar) instead of steel or aluminum bars used in the car/automotive vehicle doors.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the usability of MWCNTs Filled GFR/aluminum honeycomb sandwich composites for automotive vehicles

Demirci

2020

International Journal of Automotive Engineering and Technologies

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In order to provide fuel saving and performance in gasoline/diesel automotive vehicles, and to increase the long range of the electric battery in electric vehicles, lightening studies in the weight of automotive vehicles are carried out by researchers at the automotive R&D (Research and Development) centers in the university and industry. The reducing of weight of automotive vehicles finds out some problems such as low crashworthiness and safety. These highlight problems bring something into the forefront the use of ultra-light honeycomb sandwich composites having high mechanical properties in the automotive industry. In addition, the mechanical properties of fiber-reinforced honeycomb sandwich composites can be further improved by limiting the formation of damages during impact by using nanotechnology. In this study, the usability of multi walled nanoparticles (MWCNTs) filled and unfilled GFR/Aluminum honeycomb sandwich composites instead of metal protection bars in the doors of automotive vehicles was investigated. It was found that 0.3%wt MWCNTs increased the average maximum bending loads, displacements and impact energy absorptions by about 2.1, 1.36 and 1.5 times respectively according to compared to unfilled GFR/Aluminum honeycomb sandwich composites. The slip-stick failure mechanism was observed at interfaces of unfilled GFR composite face sheets and aluminum honeycomb core. The delamination failures were found as dominant failure as result of poor adhesion for them. It was detected with microscope and SEM analysis that MWCNTs restricted the occurrence of failures during the bending load and impact. MWCNTs provided the fillet occurrence at interfaces by increasing the contact bonding areas. Plastic deformation was found as dominant failure for them. It is thought that the crashworthiness and safety can be improved by using MWCNTs filled GFR/aluminum honeycomb sandwich composites in car doors instead of metal protection bars.

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A comprehensive analysis of damage behaviors of composite sandwich structures under localized impact

Deng

Gong

Xue

et al. 2022

Mechanics of Advanced Materials and Structures

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Optimization of a composite impact attenuator for a formula student car

Cited by 5 publications

References 12 publications

Methodology for parameter identification on a thermoplastic composite crash absorber by the Sequential Response Surface Method and Efficient Global Optimization

Methodology for parameter identification on a thermoplastic composite crash absorber by the Sequential Response Surface Method and Efficient Global Optimization

Investigation of the usability of MWCNTs Filled GFR/aluminum honeycomb sandwich composites for automotive vehicles

A comprehensive analysis of damage behaviors of composite sandwich structures under localized impact

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