Failure Modes and Influence of the<i>Quasi</i>-static Deformation Rate on the Mechanical Behavior of Sandwich Panels with Aluminum Foam Cores

Duarte, Isabel; Teixeira-Dias, Filipe; Graça, Ana; Ferreira, A.J.M.

doi:10.1080/15376494.2010.488563

Cited by 33 publications

(18 citation statements)

References 16 publications

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“…Failure modes, including face yielding, face wrinkling, core yielding, indentation, complete, partial, and no delamination of Al-alloy sheets were reported for AFS composite panels in the past studies [15,[37][38][39][40]. Isabel et al [41] studied the flexural behaviour of adhesively-bonded AFS panels and reported two different failure modes: (i) symmetric deformation, and (ii) asymmetric deformation, for adhesively-bonded sandwich panels where failure occurred in the core due to excessive shear stress and no delamination of facing skins was observed. However, the AFS produced in this study delaminated at relatively lower load values due to the lower joining interface strength compared to core shear strength.…”

Section: Mechanical Characterisationmentioning

confidence: 94%

Joining of Aluminium Alloy Sheets to Aluminium Alloy Foam Using Metal Glasses

Bangash

Ubertalli

Saverio

et al. 2018

Metals

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Aluminium alloy foam is a lightweight material with high energy absorption properties and can potentially replace bulk Al-components. The aim of this work is to develop a brazing technique to join aluminium facing sheets to aluminium alloy foam to obtain aluminium foam sandwich panels for applications where high service temperature is a requirement. Al-6016 alloy sheets were brazed to aluminium alloy foam using two aluminium based (Al-Cu-Mg and Al-Si-Mg-Ti) metal glasses at 560 • C-590 • C in an argon atmosphere. Microstructure and microhardness profiles of the aluminium alloy sheet/aluminium alloy foam brazed joints were analysed using a microhardness tester and scanning electron microscope equipped with electron dispersion spectroscopy. A three-point bending test was conducted to study the flexural behaviour of the aluminium foam sandwich composite panels.

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Section: Mechanical Characterisationmentioning

confidence: 94%

Joining of Aluminium Alloy Sheets to Aluminium Alloy Foam Using Metal Glasses

Bangash

Ubertalli

Saverio

et al. 2018

Metals

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“…Closed-cell foams have been tested or used as a filler or core of thin-walled structures [2][3][4] or as a core in sandwich panels [5][6]. Open-cell (OC) foams exhibit increased thermal and electrical conductivities due to the network of open cells and high internal surface area of interconnected pores.…”

Section: Introductionmentioning

confidence: 99%

Crush performance of multifunctional hybrid foams based on an aluminium alloy open-cell foam skeleton

2018

Self Cite

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Multifunctional hybrid foams were developed and tested by combining aluminium alloy open-cell (OC) foam specimens with polymers, epoxy resin and silicone rubber. The rectangular OC foam specimens were impregnated with polymer, completely filling the voids. The aim of this work was to evaluate the effect of the polymer presence in the voids of aluminium alloy OC foam specimens (varying their size, e.g. height to width ratio) on the crush performance of the resulting hybrid foams. Quasi-static and dynamic uniaxial compressive tests and infrared thermography were used to compare the behaviour of hybrid foams with conventional (unfilled) OC foam specimens. Results show an improvement of the compressive strength and energy absorption capacity of hybrid foams, especially when infiltrated with epoxy resin. The results show that the epoxy leads to higher capacity of specific energy absorption of the hybrid foams, while silicone leads to lower capacity of specific energy absorption in comparison to the OC foam specimens. The high energy absorption values of

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“…Development, design, manufacturing, characterization, and application of conventional cellular materials and structures is of significant importance in engineering in recent years [1][2][3][4][5][6]. New fabrication methods of cellular materials and structures have been developed for their more convenient and flexible use in different engineering applications [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Advanced Pore Morphology Foam Elements

Vesenjak

Gačnik

Krstulović‐Opara

2014

Mechanics of Advanced Materials and Structures

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Advanced pore morphology (APM) foam, consisting of sphere-like metallic foam elements, exhibits some particular mechanical properties with unique application possibilities. The article presents the results of experimental and computational testing of APM foam elements to determine their mechanical behavior under quasi-static and dynamic compressive loading conditions. Additionally, an infrared thermal imaging camera has been used during experimental testing. Evaluated mechanical properties give better insight into the behavior of single APM foam elements under different types of loading and provide a good base for further studies of the topology and morphology influence on the global behavior of composite structures, based on APM foam elements.

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Failure Modes and Influence of theQuasi-static Deformation Rate on the Mechanical Behavior of Sandwich Panels with Aluminum Foam Cores

Cited by 33 publications

References 16 publications

Joining of Aluminium Alloy Sheets to Aluminium Alloy Foam Using Metal Glasses

Joining of Aluminium Alloy Sheets to Aluminium Alloy Foam Using Metal Glasses

Crush performance of multifunctional hybrid foams based on an aluminium alloy open-cell foam skeleton

Mechanical Properties of Advanced Pore Morphology Foam Elements

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