Crushing of aluminum closed cell foams: density and strain rate effects

Hall, Ian W.; Güden, Mustafa; Yu, Chin-Jye

doi:10.1016/s1359-6462(00)00460-7

Cited by 123 publications

(45 citation statements)

References 12 publications

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“…Previous studies of fully dense annealed Al alloys have shown that temperature more strongly affects the yield and flow stress behavior than strain rate Ill. The room temperature compressive response of a variety of AI-based foams at low strain rates 14 101 and under dynamic loading conditions 13,[10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] has shown that: a) the initial elastic modulus of AI-foams is generally lower than a fully-dense alloy, b) imperfections in the cell walls 14,9,291 lead to localized deformation, stress concentrations around the deformed regions, and due to this a decreased elastic modulus, c) AI-foams exhibit yield behavior when the local distortions link to form deformation bands, and d) subsequent oscillations in the stress-strain curves of AI-foams tested in compression are associated with additional deformation band collapse.…”

Section: Introductionmentioning

confidence: 99%

Compressive Properties of a Closed-Cell Aluminum Foam as a Function of Strain Rate and Temperature

Cady¹,

Gray²,

Liu³

et al. 2002

AIP Conference Proceedings

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The compressive constitutive behavior of a closed-cell Aluminum foam (ALPORAS) manufactured by Shinko Wire. Co. in Japan was evaluated under static and dynamic loading conditions as a function of temperature. High-strain-rate tests (1000 -2000/s)were conducted using a split-Hopkinson pressure bar (SHPB). Quasi-static and intermediate-strain-rate tests were conducted on a hydraulic load frame. A small but discemable change in the now stress behavior as a function of strain rate was measured. The deformation behavior of the AI-foam was however found to be strongly temperature dependent under both quasi-static and dynamic loading.Localized deformation and stress state instability during testing of metal foams is discussed in detail since the mechanical behavior over the entire range of strain rates indicates non-uniform deformation. Additionally, investigation of the effect of residual stresses created during manufacturing on the mechanical behavior was investigated.

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Section: Introductionmentioning

confidence: 99%

Compressive Properties of a Closed-Cell Aluminum Foam as a Function of Strain Rate and Temperature

Cady¹,

Gray²,

Liu³

et al. 2002

AIP Conference Proceedings

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“…23) The strain rate dependence was neglected, because little strain rate sensitivity was measured, 9) although there is a report that the plateau stress of the Al foam exhibited strong strain rate sensitivity at a dynamic strain rate. 24) The calculation was performed on a HP690 supercomputer.…”

Section: Finite Element Analysis and Experimental Methodsmentioning

confidence: 99%

“…In attempts to understand the mechanical response of foam materials under loading, a number of micromechanical models have been developed. Most of the proposed mechanical models are employed by analytical 1,[7][8][9] (typically e.g. Gibson and Ashby 10) ) or numerical 10) approaches, e.g.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Modeling of Al-Mg Alloy Open-Cell Foams

Ryu

Cho

et al. 2005

Mater. Trans.

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A finite element analysis was employed to simulate the deformation behavior of Al-Mg alloy foams of 92% porosity during compressive testing and the simulated results were compared with experimental ones. The crushable foam model developed in ABAQUS software for compressible foam materials could well reproduce the uniaxial compressive behavior in terms of stress-strain response and deformed geometry. In particular, the effect of friction between the dies and the foam specimen was discussed.

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“…Therefore we should think that the stress of the stainless steel cellular material including polyurethane increases gradually at plateau resin during compressive test. It was reported that the plateau stress of the metallic and polymeric cellular materials increased when the strain rate increased from a static rate to a high strain rate (over 10 3 per second) [19]. In this study, the compressive test was performed at only one strain rate (static rate, 5% per second).…”

Section: Journal Of Solid Mechanics and Materials Engineeringmentioning

confidence: 96%

Mechanical Properties of Stainless Steel Cellular Materials with Polyurethane

Kishimoto¹,

Shimizu

Naito³

et al. 2011

JMMP

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Metallic cellular materials containing a polymer were fabricated by the polymer penetrating into cells of the metallic cellular material. The stainless steel cellular materials were selected for use as the cellular material and polyurethane resin was selected as the penetrated polymer. The mechanical properties of this material were measured. The results of the compressive tests showed that the stainless steel cellular material containing the polyurethane has different stress-strain curves from that without any polymer. These results also showed that the stainless cellular material containing polyurethane has a high-energy absorption. The shock absorbability of this material is higher than that of the polymer and lower than that of the stainless steel cellular material.

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Crushing of aluminum closed cell foams: density and strain rate effects

Cited by 123 publications

References 12 publications

Compressive Properties of a Closed-Cell Aluminum Foam as a Function of Strain Rate and Temperature

Compressive Properties of a Closed-Cell Aluminum Foam as a Function of Strain Rate and Temperature

Mechanical Modeling of Al-Mg Alloy Open-Cell Foams

Mechanical Properties of Stainless Steel Cellular Materials with Polyurethane

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