An Overview on Impact Behaviour and Energy Absorption of Collapsible Metallic and Non-Metallic Energy Absorbers used in Automotive Applications

Shinde, R B; Mali, Kiran D.

doi:10.1088/1757-899x/346/1/012054

Cited by 13 publications

(6 citation statements)

References 62 publications

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“…Experimental studies were done to evaluate the effect of apex angle in the range of 5°-25°. Previous studies [14] showed that increasing structure thickness induces better progressive collapse in glass/epoxy composites. Mamalis et al [15] have performed a numerical study on axial crushing for thin walled fiberglass composites with different apex angles of 5°-20°.…”

Section: Introductionmentioning

confidence: 89%

Energy absorption assessment of conical composite structures subjected to quasi-static loading through optimization based method

Nia¹,

Nejad²,

Li³

et al. 2020

Mechanics & Industry

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The geometry of a composite frusta-conical structure with 20° apex angle was optimized using topology optimization method. The ATOM topology solver was used to perform optimization process. The structure was subjected to an axial compressive quasi-static loading where the criterion of optimization is the largest absorption of energy per unit volume. The optimization resulted in concave shell geometry with a volume reduction of 15%. To compare the effect of geometry on energy absorption capability, two types of GFRP specimen with different thickness were fabricated using filament winding and hand lay-up methods. The axial crushing test results were validated with numerical analysis using the commercial finite element software ABAQUS. The collapse mode and failure mechanism were investigated and identified. The presented methodology helps to find the better geometry instead of testing different geometries.

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Section: Introductionmentioning

confidence: 89%

Energy absorption assessment of conical composite structures subjected to quasi-static loading through optimization based method

Nia¹,

Nejad²,

Li³

et al. 2020

Mechanics & Industry

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“…In addition, various methods of energy absorption in automotive systems have also been studied. [3]. In automotive, some parts are deliberately sacrificed during a collision.…”

Section: Introductionmentioning

confidence: 99%

The Behavior of Thin-Walled Cylinders with Ribs Regarding the Energy Absorption Capability on High-Velocity Impact

Hardi,

Abdul Aziz,

Umron

2024

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Many industries and automotive companies use thin-walled cylinders as energy-absorbing devices. Researchers have previously investigated various parameters related to thin-walled cylinders and their behavior under impact loads. When the impactor hits the thin-walled cylinder from the axial direction, it causes the bending of the cylinder wall on an axisymmetric or non-axisymmetric pattern, depending on the ratio of diameter divided by wall thickness. In addition, the length of the specimen influences the deformation mode that occurs. This study discusses how installing ribs on the cylinder walls affects energy absorption capabilities. We conducted the research by making modeling based on the finite element method by making various specimens according to the experimental scenarios. We experimented with an aluminum alloy cylinder with a diameter of 50 cm, a thickness of 1.5 mm, and a length of 200 mm. Then, successively, we installed ribs with a length of 2 mm and a thickness of 3.5 mm, one rib, two ribs, three ribs, four ribs, and five ribs. The impactor hits the specimen from the axial direction to one end at high speed while the other is given fixed support. The results obtained from the experiment are total deformation, reaction force, absorbed energy, and deformation pattern. The experimental results show that adding ribs changes the deformation pattern from previously non-axis-symmetric to axis-symmetric. The total deformation decreases, the reaction force becomes smaller, and the ability to absorb energy equals the total kinetic energy. This result is a recommendation for manufacturing in an energy absorption structural system. Keywords: rib, deformation mode, wall thickness, energy absorption, reaction force.

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“…When a thin-walled steel tube is subjected to an axial compressive load, it can generate either a concertina (axisymmetric buckle) or a diamond (non-axisymmetric buckle). A concertina deformation mode is most efficient energy absorbing mode [ 5 ]. Khan et al [ 6 ] explained that failure mode for thin wall cylindrical composite tube can be divided into three modes; (1) mushrooming failure, (2) brittle fracture of the composite tube and (3) increasing folding and hinging.…”

Section: Introductionmentioning

confidence: 99%

Quasi-Static Compression Properties of Bamboo and PVC Tube Reinforced Polymer Foam Structures

et al. 2021

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In recent years, there has been a growing interest for composite materials due to the superior capability to absorb energy and lightweight factor. These properties are compatible to be utilized in the development for transportation system as it can reduce the fuel consumption and also minimize the effect of crash to the passenger. Therefore, the aim for this project is to study the compression strength and energy absorbing capability for Polyvinyl chloride (PVC) and bamboo tubes reinforced with foam. Several parameters are being considered, these being the effect of single and multiple tube reinforced foam structure, foam density, diameter of the tube as well as effect of different crosshead speed. The results showed that increasing the relative foam density will led to an increase in the compression strength and specific energy absorption (SEA) values. Furthermore, a significant increase of compression strength can be seen when several tubes are introduced into the foam while SEA remained almost the same. Finally, the influence of crosshead below 20 mm/min did not vary significantly for both compression strength and SEA.

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An Overview on Impact Behaviour and Energy Absorption of Collapsible Metallic and Non-Metallic Energy Absorbers used in Automotive Applications

Cited by 13 publications

References 62 publications

Energy absorption assessment of conical composite structures subjected to quasi-static loading through optimization based method

Energy absorption assessment of conical composite structures subjected to quasi-static loading through optimization based method

The Behavior of Thin-Walled Cylinders with Ribs Regarding the Energy Absorption Capability on High-Velocity Impact

Quasi-Static Compression Properties of Bamboo and PVC Tube Reinforced Polymer Foam Structures

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