Syntactic foam core metal matrix sandwich composite under bending conditions

Omar, Mohammed Yaseer; Xiang, Chongchen; Gupta, Nïkhil; Strbik, Oliver M.; Cho, Kyu

doi:10.1016/j.matdes.2015.07.127

Cited by 45 publications

(19 citation statements)

References 43 publications

(48 reference statements)

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“…[54,68,70,71] However, nowaday only the compression test is standardized. [54,68,70,71] However, nowaday only the compression test is standardized.…”

Section: Introductionmentioning

confidence: 99%

On the Mechanical Properties of Aluminum Matrix Syntactic Foams

Orbulov¹,

Szlancsik²

2018

Adv Eng Mater

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Metal matrix syntactic foams (MMSFs, often referred as composite metal foams (CMFs)) are lightweight materials with high specific strength. MMSFs are on the borderline between metal matrix composites and metal foams. On one hand MMSFs are composites, because they are filled by hollow particles and the particles may add strength to the material. On the other hand, they are foams, because the hollow particles ensure porosity to the material. Among metallic foams, MMSFs exhibit outstanding specific mechanical properties due to the hollow inclusions that are typically made from ceramics or high strength alloys, therefore they can be applied as structural materials. The goal of this paper is to summarize the available data on the mechanical properties of MMSFs with aluminum matrix in order to give a strong support to the design engineers. Since the foams are most frequently loaded in compression, the main part of this paper is organized around the available standard related to the compressive properties of porous materials and metallic foams. The quasi-static results are complemented by properties measured at higher strain rates. Besides this, some insight into the basic fatigue properties as well as into the toughness of MMSFs is also provided.

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“…[54,68,70,71] However, nowaday only the compression test is standardized. [54,68,70,71] However, nowaday only the compression test is standardized.…”

Section: Introductionmentioning

confidence: 99%

On the Mechanical Properties of Aluminum Matrix Syntactic Foams

Orbulov¹,

Szlancsik²

2018

Adv Eng Mater

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“…Due to the application of the gravity-fed system, it is vital to use an infiltration recipient with enough venting nozzles to evacuate whole gases during the process. It enables the use of hollow [11,36,52,74,[100][101][102][103] or porous [3] particles. The mold filling step can be combined with gentle shaking after each batch filling for a denser packing, according to Licitra et al [101].…”

Section: The Pressure-less Infiltration Methods (Dpli)mentioning

confidence: 99%

Molten Metal Infiltration Methods to Process Metal Matrix Syntactic Foams

S-de-la-Muela

Cambronero

Ruiz‐Román

2020

Metals

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Metal matrix syntactic foams (MMSF) are foam composites obtained by filling hollow and/or porous particles into a metal matrix. MMSF are promising materials in defense, aerospace, automotive, marine and engineering applications. Mechanical and physical properties of MMSF can be tailored to reach better structural and/or functional behaviors by fitting processing and tailoring parameters. Some of these parameters are: reinforcement size, volume fraction, distribution of reinforcements and chemical composition. Three techniques are available to manufacture MMSF: Stir casting/vortex method (SC), powder metallurgy (P/M) and infiltration routes. Infiltration process is by far the main employed for making MMSF, it allows a large range of reinforcement (30 vol % to 78 vol %) and offers great advantages compared to other techniques. This paper reviews infiltration routes used to date, their advantages and drawbacks, the main processing parameters of each route, and a relation of representative studies developed to date on the synthesizing of MMSF by molten infiltration processes.

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“…The tapped bed of particles created in these composites is filled with the maximum possible volume of particles. Therefore, the particle volume fraction is estimated to be around 60% in the core [19,20]. The mold is preheated to a temperature close to the melting point of the metal matrix for a time that is sufficient to bring all contents to that temperature.…”

Section: Methodsmentioning

confidence: 99%

“…4(b). Detailed microscopic observations on these sandwich composites are available in previous studies [19,20]. …”

Section: Microscopymentioning

confidence: 99%

“…Metal foams and foam core sandwich composites are promising protective materials in applications such as vehicle crumple zones and blast armors [18]. Although syntactic foams are also intended for use as core materials in sandwich structures, metal matrix syntactic foam core sandwich materials have only been studied recently because of challenges involved in their fabrication [19,20]. Studies on compression and flexural response of aluminum matrix syntactic foam core sandwich composites are available [19e22].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of the dynamic properties of an aluminum syntactic foam core sandwich

Lamanna

Gupta

Cappa

et al. 2017

Journal of Alloys and Compounds

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a b s t r a c tThe purpose of this study is to evaluate the dynamic mechanical properties of syntactic foam core sandwich structures. Aluminum matrix syntactic foams with carbon fabric skins are studied. Syntactic foams incorporate porosity in their foam-like structure by means of hollow particles. The material examined here is composed of a core made of aluminum A356 matrix filled with alumina hollow particles. Two types of sandwich composites are studied containing: (a) a single layer of carbon fabric and (b) three layers of the same fabric in 0 /90 orientation. Dynamic characterization was conducted using a free vibration method to determine the resonant frequency of the sandwich beams. The dynamic modulus, storage modulus, loss modulus and damping ratio were calculated from the test results. The experimental results were used to validate the predictions of a theoretical model. The experimental values for Young's modulus of one-and three-layer fabric sandwiches were measured to be 32.57 ± 2.15 and 37.33 ± 1.12 GPa, respectively. The experimental results are in close agreement with the theoretical model.

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Syntactic foam core metal matrix sandwich composite under bending conditions

Cited by 45 publications

References 43 publications

On the Mechanical Properties of Aluminum Matrix Syntactic Foams

On the Mechanical Properties of Aluminum Matrix Syntactic Foams

Molten Metal Infiltration Methods to Process Metal Matrix Syntactic Foams

Evaluation of the dynamic properties of an aluminum syntactic foam core sandwich

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