Mathematical design of electric vehicle impact attenuators: Metallic vs composite material

Boria, Simonetta; Pettinari, Silvia

doi:10.1016/j.compstruct.2014.04.010

Cited by 30 publications

(17 citation statements)

References 20 publications

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“…At this stage, a triangular debris wedge of pulverized material start to form. Therefore, the major macroscopic crushing mechanisms governing the axial compression of tubes can be identified as [13,14]:…”

Section: Resultsmentioning

confidence: 99%

Axial energy absorption of CFRP truncated cones

Boria

Scattina

Belingardi

2015

Composite Structures

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Section: Resultsmentioning

confidence: 99%

Axial energy absorption of CFRP truncated cones

Boria

Scattina

Belingardi

2015

Composite Structures

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“…As in [29,30] the internal and the external fronds have the same length of the crush length during the opening. Assume that b c is the frustum side width at the crack tip related to the position of the crack initiation that verifies…”

Section: Composite Square Frustum: Analytical Modelmentioning

confidence: 92%

“…The energy dissipated due to axial splitting is determined by both the inside and outside axial splitting component as showed in [30], so the energy dissipated by axial splitting work is W a ¼ 4r 0 h 2 ðt i ðsinðh þ a i Þ À sinhÞ þ ðt À t i Þðsinða e À hÞ þ sinhÞÞ: ð3Þ …”

Section: Axial Splittingmentioning

confidence: 99%

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Analytical and numerical analysis of composite impact attenuators

Boria

Pettinari

Giannoni

et al. 2016

Composite Structures

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“…Therefore, finite element analysis, as a powerful computational tool, is a promising means and widely deployed in crash modelling to predict the performance of energy absorption of the safety cushions [17] [18]. In particular, the tool offers tremendous benefits in analyzing new candidate of material and design for extensive parametric studies [19].…”

Section: Introductionmentioning

confidence: 99%

On the Design of Energy Absorbing Crash Buffers for High Speed Roadways

Uddin¹,

Quintel²,

Zivkovic³

2016

OJSST

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The aim of this paper is to design and analyze cost-effective and high energy absorbing buffer systems for high speed roadways. Unlike conventional crash cushions, the proposed buffer design is based on the assembly of a series of cylindrical hollow tubes (cells) with thorough slots around the cells. The idea is that during the collisions, the kinetic energy of the errant vehicles will be absorbed by the progressive deformation of the cells, hence minimizing damage to the vehicle and allowing a comfortable ride down deceleration of the vehicle's occupants. As the cell was the fundamental unit of the buffer design, three cells with different geometry were studied to understand the underlying deformation of the individual cells. Nonlinear quasi-static tests using three-dimensional (3D) finite element (FE) simulation and experimental techniques were performed to evaluate the deformation and energy absorption capacity of the cells. Simulation results matched closely with experimental ones with relatively small errors. Based on the experimental results of single cells, a number of potential buffer systems were designed for 80 and 100 km/h speed roadways. Results indicate that the buffers with larger diameter cells are favorable to be used in high speed zones as they reduce the overall size of buffers and contain less number of cells, while being able to absorb the required amount of impact energy. Consequently, they are found to result in a reduced cost associated with materials and fabrication. All the buffer designs were relatively shorter than commercially available buffers used in roadways. In addition, due to their reduced and compact size, the designed buffers can potentially be used in a space limited and hazardous road environment to reduce the vehicle crash with the fixed objects.

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Mathematical design of electric vehicle impact attenuators: Metallic vs composite material

Cited by 30 publications

References 20 publications

Axial energy absorption of CFRP truncated cones

Axial energy absorption of CFRP truncated cones

Analytical and numerical analysis of composite impact attenuators

On the Design of Energy Absorbing Crash Buffers for High Speed Roadways

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