Energy Absorption Behavior of Al-SiC-Graphene Composite Foam under a High Strain Rate

Das, Subhadeep; Rajak, Dipen Kumar; Khanna, Sanjeev K.; Mondal, D.P.

doi:10.3390/ma13030783

Cited by 17 publications

(6 citation statements)

References 58 publications

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“…The static behaviour of the foam was also analyzed with a low strain rate. 25,26 When comparing static and dynamic behaviour the energy absorption is higher in dynamic behaviour. 27 The composite materials were also tested under high strain rates.…”

Section: Introductionmentioning

confidence: 99%

Static and dynamic behaviour of aluminium infiltrated ceramic foam at high volume fraction

Ramalingam,

Vijayan,

Nampoothiri

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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Ceramics are used in ballistic protection applications for their high hardness and compressive strength; however, they are brittle and shock-sensitive. Co-continuous ceramic composite (C4) infused with a ductile phase can compensate for the brittleness of the ceramic and increase energy absorption with a potential weight reduction in comparison with present multilayer armours. Nevertheless, the research on C4 for armour applications is in its infant stage. This article aims to investigate the energy absorption characteristics of C4 composites with ballistic grade Al5083 infiltrated into different volume fractions of SiC foam (10PPI, 20PPI and 30PPI). The infiltrated C4 samples have 13, 15 and 18 volume percent of SiC in 10PPI-C4, 20PPI-C4 and 30PPI-C4 respectively. The uniaxial compression test of C4 samples revealed that 30PPI-C4 samples have 135 times high compression strength than ceramic preforms and hardness of C4 also enhanced by 13% for 30PPI-C4 samples. The gas gun impact and Split Hopkinson Pressure Bar (SHPB) tests on the 30PPI-C4 specimens reveals that their specific energy absorption (SEA) are 78% and 30% higher than those of 10PPI-C4 and 20PPI-C4 respectively.

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Section: Introductionmentioning

confidence: 99%

Static and dynamic behaviour of aluminium infiltrated ceramic foam at high volume fraction

Ramalingam,

Vijayan,

Nampoothiri

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Aluminium foams exhibit unique mechanical, thermal, acoustic, and electrical properties [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15], rendering them attractive in transportation, construction, and aerospace applications [16][17][18][19][20][21][22][23][24][25][26]. Now, aluminium foams have reached the maturity of development in terms of process stability, materials properties and costs required for industrial applications [6,10].…”

Section: Introductionmentioning

confidence: 99%

Effects of stirring speed and flux composition on the recycling of aluminium foams

Zhang

Li²,

Zhao³

et al. 2022

Mater. Res. Express

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Owing to the excellent performance of aluminium foam in transportation, construction, and aerospace applications, their production has increased rapidly in recent years, leading to the accumulation of an increasing quantity of aluminium foam scrap and used aluminium foams. An efficient recycling process for these products is urgently required for resource conservation and environmental protection. In this study, a flux-covering method is employed to recycle aluminium foams. The effects of stirring speed and flux composition on the recycling process were investigated. An orthogonal test was performed to determine the optimal flux parameters for NaCl, KCl, and NaF. The microstructures of aluminium foam and recycled aluminium were observed using scanning electron microscopy and optical microscope, respectively. Phase compositions of foams, flux, recycled aluminium, and slag were analysed using X-ray diffraction. The results showed that the recovery was improved with increasing stirring speed, and the optimal stirring speed was 150 r∙min-1 under the present conditions. In addition, the composition of the flux exhibited a significant impact on the recovery. The recovery reached 86.35% when the NaCl, KCl, and NaF concentrations were 15, 15, and 5 wt.%, respectively. The mechanisms of recovery improvement were discussed in terms of the primary crystal temperature of flux as well as the thermodynamics and kinetics of the impurity removal.

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“…The experiment allowed for developing the stress-strain diagram for the specimen and computing the energy absorption for comparison with those obtained from quasi-static and high strain rate loading conditions [29,30]. The experimental results of dynamic mechanical tests on foam materials showed that the density and temperature of the material will have a great influence on the mechanical properties and energy absorption effect of foam materials [31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Energy Absorption Capabilities of Polyethylene Foam under Impact Deformation

2021

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Foams are widely used in protective applications requiring high energy absorption under impact, and evaluating impact properties of foams is vital. Therefore, a novel test method based on a shock tube was developed to investigate the impact properties of closed-cell polyethylene (PE) foams at strain rates over 6000 s−1, and the test theory is presented. Based on the test method, the failure progress and final failure modes of PE foams are discussed. Moreover, energy absorption capabilities of PE foams were assessed under both quasi-static and high strain rate loading conditions. The results showed that the foam exhibited a nonuniform deformation along the specimen length under high strain rates. The energy absorption rate of PE foam increased with the increasing of strain rates. The specimen energy absorption varied linearly in the early stage and then increased rapidly, corresponding to a uniform compression process. However, in the shock wave deformation process, the energy absorption capacity of the foam maintained a good stability and exhibited the best energy absorption state when the speed was higher than 26 m/s. This stable energy absorption state disappeared until the speed was lower than 1.3 m/s. The loading speed exhibited an obvious influence on energy density.

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Energy Absorption Behavior of Al-SiC-Graphene Composite Foam under a High Strain Rate

Cited by 17 publications

References 58 publications

Static and dynamic behaviour of aluminium infiltrated ceramic foam at high volume fraction

Static and dynamic behaviour of aluminium infiltrated ceramic foam at high volume fraction

Effects of stirring speed and flux composition on the recycling of aluminium foams

Evaluation of Energy Absorption Capabilities of Polyethylene Foam under Impact Deformation

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