The fatigue strength of sandwich beams with an aluminium alloy foam core

Harte, Anne-Marie; Fleck, N.A.; Ashby, Michael F.

doi:10.1016/s0142-1123(01)00012-3

Cited by 97 publications

(74 citation statements)

References 8 publications

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“…Target structural applications include components for mechanical energy absorption [6][7][8] and more generally light-weight structural elements, such as sandwich structures where two thin outer «skin» layers of a dense stiff material are separated by a central «core» of foamed metal. Aluminium skin/aluminium foam sandwich structures have thus been the subject of a considerable body of recent research [2,[9][10][11][12][13][14][15][16][17][18][19], as have other dense metal/metal foam structures, such as cylindrical shells and foam-filled metal tubes [2,3,5,7].…”

Section: Introductionmentioning

confidence: 99%

Graded open-cell aluminium foam core sandwich beams

Pollien

Conde

Pambaguian

et al. 2005

Materials Science and Engineering: A

120

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We show that the replication process can be extended towards the production of functionally graded porous structures by fabricating and testing structures in which outer layers of dense metal encase a central part made of foam with graded porosity. Samples of this kind are produced by pressing individual layers of NaCl powder of granulometry 60-90 m, and then stacking these layers between two skins of dense aluminium. The stacked preforms are then infiltrated with pure aluminium and solidified before dissolution of the salt in water. Specimens containing up to five layers of porous Al of different density between two dense outer skins of pure Al are produced; selected samples are tested in three-point bending. Data show good agreement with analysis based on sandwich beam theory and the Deshpande-Fleck yield criterion. Results of this work indicate that whereas lightweight graded metal/metal foam beams show little promise from the standpoint of stiffness-limited design, they may be of interest from the standpoint of load-limited design.

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Section: Introductionmentioning

confidence: 99%

Graded open-cell aluminium foam core sandwich beams

Pollien

Conde

Pambaguian

et al. 2005

Materials Science and Engineering: A

120

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“…It can be prepared into curved shapes and with integral skins (without adhesive bonding), allowing higher working temperature and higher resistance to damage from water intrusion, which could be important for marine applications. Aluminum foams have potential to change polymer foams in sandwich panel applications due to their improved specific stiffness and higher temperature ability [22].…”

Section: Icmer 2015mentioning

confidence: 99%

Sandwich Structure Based On Corrugated-Core: A Review

2016

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Abstract. Sandwich structures are commonly based on polymeric foam and honeycomb core material, for use in lightweight applications such as fuselage in aero plane, hull in marine construction and others. A review of sandwich structure based on corrugated-core is proposed and presented in this paper. Firstly, this paper aims to provide a means of comparing available sandwich structure in industries. Secondly, this paper aims to provide sandwich structure with corrugated-core for future research development efforts in field of sandwich construction. This paper starts with introduction of composite material such as sandwich structure, the advantages of sandwich structure was shown. After that these papers provide the structure of sandwich structure which includes the two faces and the cores. Furthermore, sandwich structure with different cores, which is honeycomb, foam core and corrugated core are discussed. At the end, the paper discussed more on corrugated-core for future research development.

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“…3,4) So far, many studies have been conducted on the properties of AFS panels. Harte et al 5) presented a study about AFS panels tested in cyclic four point bend, and determined SN fatigue curves for the failure modes of face fatigue, core shear and core indentation. Kesler et al 6) analyzed the effect of the beam depth on the limit load under the three points bending test of AFS panels.…”

Section: Introductionmentioning

confidence: 99%

Simulation of Apparent Elastic Property in the Two-Dimensional Model of Aluminum Foam Sandwich Panels

et al. 2015

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Based on its structural features, Aluminum Foam Sandwich (AFS) panels were properly simplified to two-dimensional random models through C++ and ANSYS software in this paper. The apparent elastic property of AFS panels was studied through simulation under the circumstances of different relative density, pore size range or geometric imperfections. The obtained results showed that the microstructural deformation in AFS was caused during uniaxial compression, which leaded to the increase of apparent elastic modulus with the increase of relative density. It was also found that the apparent elastic modulus of AFS panels with non-homogeneous structure was the highest and the apparent elastic modulus of AFS panels with geometric imperfections was the lowest. Moreover, the pore size range almost had no effect on the slope of the elastic stage. However, the apparent elastic modulus showed great sensitivity to the geometric imperfections. In addition, the exponential relationship between the relative densities and the relative elastic modulus was fitted. The simulation results in this work were in agreement with those found in previous theoretical and experimental results reported in other literature, which confirmed the feasibility and rationality of two-dimensional random models.

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The fatigue strength of sandwich beams with an aluminium alloy foam core

Cited by 97 publications

References 8 publications

Graded open-cell aluminium foam core sandwich beams

Graded open-cell aluminium foam core sandwich beams

Sandwich Structure Based On Corrugated-Core: A Review

Simulation of Apparent Elastic Property in the Two-Dimensional Model of Aluminum Foam Sandwich Panels

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