Aluminium Foam Sandwich Structures for Space Applications

Schwingel, Dirk; Seeliger, Hans-Wolfgang; Vecchionacci, Claude; Alwes, D.; Dittrich, Jürgen

doi:10.2514/6.iac-06-c2.4.10

Cited by 10 publications

(7 citation statements)

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“…A spin-off company of Karmann's metal foam applications built a new lift arm on a truck by MIG welding (Banhart, 2005;Banhart and Seeliger, 2007). As part of a French / German research project, AFS parts were tested for aerospace cone section applications, were successfully welded by TIG welding (Schwingel et al, 2007;Banhart and Seeliger, 2007). In another study, Shih et al (2011), used principal component analysis (PCA) with Taguchi methods combined with the micro-hardness and bending strength for weldment quality characteristics optimization of welded aluminum foam sheets by MIG welding.…”

Section: Mig/tig Weldingmentioning

confidence: 99%

A Review on Welding Techniques of Metallic Foams

Karabulut¹,

Üllen

2022

Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Metallic foams are a new type of material class using in the much-diversified area such as automotive, biomedical, and construction etc. Thanks to its porous structure, it stands out with its energy and impact absorption as well as its lightness. Due to the properties, metal foams have the potential for use in many applications. As the number of uses and potential applications increases, it becomes important to develop adequate joining technologies for metallic foams and to select appropriate methods for their widespread industrial use. However, various problems are encountered in welding metallic foams with a foam or a face sheet. The most important feature that causes differences in the welding process and characteristics of these materials is porosity. While the methods such as MIG/TIG could be preferred in the past, the methods such as laser welding have come to the fore with today's needs. The welding of metallic foams is a subject that is still being studied and developed. In this study, studies in the literature are examined to understand the problems encountered in metallic foams during welding and to develop welding techniques. It is aimed to create a wide source for the welding of metallic foams by referring to the methods used and the advantages and disadvantages of the methods with this review. It has been determined that traditional welding methods have started to be replaced by advanced welding methods in the welding of metallic foams.

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Section: Mig/tig Weldingmentioning

confidence: 99%

A Review on Welding Techniques of Metallic Foams

Karabulut¹,

Üllen

2022

Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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“…Sandwich structures are important class of structures because of their preferable properties such as great bending stiffness and low specific weight with application in medical, aircraft and aerospace space vehicles and portage systems [1,2]. One of the most widely used class of this structures can be constituted of a placed homogeneous soft core between two face sheets made of isotropic material [3], fiber-reinforced composites [4,5], carbon nanotube [6,7], or functionally graded materials [8][9][10].…”

Section: Introduction 1backgroundmentioning

confidence: 99%

On the dynamics of FG-GPLRC sandwich cylinders based on an unconstrained higher-order theory

Eyvazian

Sebaey

Żur

et al. 2021

Composite Structures

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“…The works of Bauhart [6] and Schwingel et al. [7] list the applications of metal foams into automotive and aerospace engineering fields, respectively.…”

Section: Introductionmentioning

confidence: 99%

The vibroacoustic behaviour of aluminium foam sandwich panels in similitude

Casaburo

Petrone

Meruane

et al. 2021

Jnl of Sandwich Structures & Materials

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Aluminium Foam Sandwich (AFS) panels are a type of structural configuration in which two aluminium thin layers enclose a core made of foamed aluminium. Both the metallic characteristic of the matrix and the foam porosity lead to a remarkable combination of properties which range from high specific stiffness to thermal and acoustic isolation. However, these characteristics, depending on core properties as foam density, pores morphology, type and size of gas bubbles, are obtained by means of a manufacturing process that is not fully controlled. Thus, in order to reduce the financial and temporal costs of the campaign of experimental tests needed for completely understanding the properties and potentialities of AFS panels, similitude methods can be used so that scaled-down models can be tested in place of the full-scale structure. In this work, the similitude conditions and scaling laws of Alulight® AFS panels with two different boundary conditions (simply supported and free-free) are derived and validated. In particular, two different sets of conditions are derived: the first by expliciting all the geometrical and material properties, the second by combining some parameters into just one with physical meaning, the bending stiffness. The analysis in similitude is addressed towards the prediction of vibroacoustic properties such as natural frequencies, Frequency Response Function (FRF) and radiated acoustic power. Both models in complete and partial similitude are investigated. While the former allow to reconstruct the vibroacoustic characteristics of the prototype, the latter does not. Furthermore, it is proved that it is possible to derive a simplified set of similitude conditions if many parameters are gathered into just one parameter with physical meaning.

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Aluminium Foam Sandwich Structures for Space Applications

Cited by 10 publications

References 0 publications

A Review on Welding Techniques of Metallic Foams

A Review on Welding Techniques of Metallic Foams

On the dynamics of FG-GPLRC sandwich cylinders based on an unconstrained higher-order theory

The vibroacoustic behaviour of aluminium foam sandwich panels in similitude

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