Mechanical behaviour and energy absorption of closed-cell aluminium foam panels in uniaxial compression

Idris, Maizlinda Izwana; Vodenitcharova, T.; Hoffman, Mark

doi:10.1016/j.msea.2009.03.067

Cited by 113 publications

(67 citation statements)

References 9 publications

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“…For a similar density (25-65 kg/m 3 ), very few materials currently exist such as Cymat aluminium foam (Z70 kg/m 3 ), Ni-P microlattices (Z0.9 kg/m 3 ), silica aerogels (Z1.0 kg/m 3 ), carbon nanotube aerogels (Z4.0 kg/m 3 ), and polymer foams (Z8.0 kg/m 3 ). However, our research results indicate that, when the luffa column is compressed longitudinally, the amount of energy it can absorb per unit mass is comparable to that of the aluminium foam (Idris et al, 2009;Shen et al, 2010) and most of the polymer foams (Avalle et al, 2001), as shown in Fig. 14(a).…”

Section: Comparison With Other Materialsmentioning

confidence: 78%

Mechanical properties of luffa sponge

Shen

Xie

Huang

et al. 2012

Journal of the Mechanical Behavior of Biomedical Materials

139

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Section: Comparison With Other Materialsmentioning

confidence: 78%

Mechanical properties of luffa sponge

Shen

Xie

Huang

et al. 2012

Journal of the Mechanical Behavior of Biomedical Materials

139

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“…The dynamic energy absorption properties of metal foam are closely related to the propagation and reflection of plastic shock wave under impact loadings (Cui, et al 2009;Idris, et al 2009). Therefore, studying the plastic shock wave is the key solution to reveal the mechanisms of dynamic energy absorption behavior of metal foam.…”

Section: Introductionmentioning

confidence: 99%

Investigations on the mechanism and behavior of dynamic energy absorption of metal foam

Luo

Xue

2018

Lat. Am. j. solids struct.

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Metal foams have been widely used in the engineering fields due to its excellent energy absorption capacity under impact. Under different impact velocities, metal foam exhibits different energy absorption properties. It is important to investigate the mechanism and behavior of energy absorption of metal foam under impact. In this study, a 3D microscopic finite element model (FEM) of metal foam is first established to study energy absorption properties of metal foam. It is shown that the impact energy transfers into kinetic and internal energy of metal foam which varies under impact. The variation can be explained by plastic shock wave, which is produced and then propagates under impact. The theoretical model is proposed to discuss and predict kinetic energy and the difference between dynamic and quasistatic energy absorption behavior of metal foam. Effects of inertia and base material strain rate on plastic shock wave are investigated, and the mechanism of the two effects on dynamic energy absorption properties are studied. The results indicate that base material strain rate effect resists the formation of plastic shock wave, and leads to smaller kinetic energy, but higher internal energy.

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“…Their main advantage during impact loading is that they transmit relatively low amounts of load due to a unique non-linear plastic deformation process [5,6]. The number of uses for these materials is increasing day by day in applications such as military equipment [7][8][9], automotive parts [10], structural elements and aerospace [4,[11][12][13]. However, little attention has been given to the shockwave attenuation and the energy absorption mechanism of metal foams particularly where the foam has been struck by a projectile [14,15].…”

Section: Introductionmentioning

confidence: 99%

Modelling and characterization of cell collapse in aluminium foams during dynamic loading

Kader

Islam

Hazell

et al. 2016

International Journal of Impact Engineering

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A B S T R A C TPlate-impact experiments have been conducted to investigate the elastic-plastic behaviour of shock wave propagation and pore collapse mechanisms of closed-cell aluminium foams. FE modelling using a mesoscale approach has been carried out with the FE software ABAQUS/Explicit. A micro-computed tomographybased foam geometry has been developed and microstructural changes with time have been investigated to explore the effects of wave propagation. Special attention has been given to the pore collapse mechanism. The effect of velocity variations on deformation has been elucidated with three different impact conditions using the plate-impact method. Free surface velocity (ufs) was measured on the rear of the sample to understand the evolution of the compaction. At low impact velocities, the free-surface velocity increased gradually, whereas an abrupt rise of free-surface velocity was found at an impact velocity of 845 m/s with a copper flyer-plate which correlates with the appearance of shock. A good correlation was found between experimental results and FE predictions.

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Mechanical behaviour and energy absorption of closed-cell aluminium foam panels in uniaxial compression

Cited by 113 publications

References 9 publications

Mechanical properties of luffa sponge

Mechanical properties of luffa sponge

Investigations on the mechanism and behavior of dynamic energy absorption of metal foam

Modelling and characterization of cell collapse in aluminium foams during dynamic loading

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