Impact Response of Aluminum Foam Sandwiches for Light-Weight Ship Structures

Crupi, Vincenzo; Guglielmino, Eugenio

doi:10.3390/met1010098

Cited by 39 publications

(23 citation statements)

References 13 publications

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“…Aluminium foam sandwich (AFS) panels, compared to bulk Al components of the same mass, are multifunctional, stiffer, and offer excellent corrosion resistance for many industrial applications including automotive, marine, aerospace, construction and railway [1,2]. AFS are made of thin rigid Al-alloy sheets (facing sheets) joined with a porous, lightweight Al-alloy foam (core).…”

Section: Introductionmentioning

confidence: 99%

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: Introductionmentioning

confidence: 99%

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

Bangash

Ubertalli

Saverio

et al. 2018

Metals

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“…Comprehensive details of distinctive features required for compres- 4) energy absorption up to densification, 5) calculated over theoretical relations [9] the same as it was fulfilled previously [13,14]. sion tests of porous Al and Al foams was done on the base of newly developed Standard ISO.…”

Section: Discussionmentioning

confidence: 99%

Mechanical Behaviour of the Porous and Foam Aluminium in Conditions of Compression: Determination of Key Mechanical Characteristics

Byakova¹,

Vlasov²,

Semenov³

et al. 2017

Metallofiz. Noveishie Tekhnol.

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The paper emphasizes harmonized recommendations for mechanical tests of highly-porous aluminium and aluminium foam to be applicable for analysing their compression response under quasi-static loading as well as determining reliable and reproducible results essentially required for practice problems of engineering design. Key mechanical parameters are designated and specified by considering distinctive features of deformation patterns indicative of porous aluminium and aluminium foam with a cellular structure. Special attention is paid to the problem related to inhomogeneous deformation of the above-mentioned materials, resulting in variation of quasi-elastic structural stiffness as well as shape and length of plateau regime of the stress-strain curve. Application of the harmonized recommendations is demonstrated with using several kinds of foam aluminium fabricated in line with different processing route. Using the above recommendation, significant effect of processing additives on micromechanism of deformation and, in turn, on macroCorresponding author: Oleksandra Viktorivna Zatsarna E-mail: alexsandra.ku@gmail.com Key words: porous metals, metallic foams, compression test, quasi-static loading.В роботі висвітлено новітні унормовані рекомендації стосовно механічних випробувань високопоруватого та спіненого алюмінію, які є придатними для аналізу механічної поведінки цих матеріялів в умовах стиснення та отримання надійних та відтворюваних результатів, істотно необхідних для вирішення задач інженерної практики. З урахуванням особливостей деформаційних кривих, притаманних комірчастій структурі високопору-ватого та спіненого алюмінію, надано відомості щодо визначення їхніх ключових механічних характеристик. Особливу увагу приділено неодно-рідному характеру деформації зазначених матеріялів, що спричиняє змі-ни у структурній цупкості, а також формі та довжині ділянки плато на кривій «напруження-деформація». Застосування унормованих рекомен-дацій було продемонстровано із застосуванням декількох видів спіненого алюмінію, виготовленого за різними технологічними процедурами. З урахуванням висвітлених рекомендацій зареєстровано істотний вплив технологічних додатків на мікромеханізм деформації та, як наслідок, на механічну поведінку спіненого алюмінію в цілому, що пояснюється за-брудненням матеріялу стінок між комірками сторонніми продуктами ре-акцій.Ключові слова: пористі метали, металеві піни, випробування на стиск, квазистатичне навантаження.В работе приведены современные рекомендации для механических испы-таний высокопористого и вспененного алюминия, которые пригодны для анализа механического поведения этих материалов в условиях сжатия и получения надёжных и воспроизводимых результатов, необходимых для решения задач инженерной практики. С учётом особенностей деформаци-онных кривых, присущих ячеистой структуре высокопористого и вспе-ненного алюминия, представлены сведения относительно определения их ключевых механических характеристик. Особое внимание уделено неод-нородному характеру деформации указанных материалов, что ...

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“…With the concept of green design and manufacturing, lightweight structures are frequently used in different manufacturing elds. As a low-density material, metal foam exhibits characteristics of small volume density, relatively lightweight feature, large surface area, high mechanical performances and good damping property 1,2) . As structural parts, the metal foams are usually used in combination with traditional compact metals.…”

Section: Introductionmentioning

confidence: 99%

Self-Piercing Riveting of Metal Foam Sandwich Structures

Liu

Deng

2017

Mater. Trans.

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Metal foam sandwich structures are widely used in construction and transportation elds because of their good acoustic performance, high thermal stability, lightweight, and high stiffness. This paper deals with join-ability of self-piercing riveted metal foam sandwich structures. Self-piercing riveting tests were performed on AA5052 aluminium alloy sandwich structures embedded with different metal foams. Tensile-shear tests were conducted to characterize the mechanical properties of different self-piercing riveted metal foam sandwich structures. The results illustrate that the connection of metal foam sandwich structures can be effectively realised with the self-piercing riveting technique. The joints exhibit good forming quality and mechanical performance. For metal foam sandwich joints, the sandwich structures embedded with nickel foam exhibits the best mechanical properties. The failure modes of the self-piercing riveted sandwich structures were observed at the separation of the lower sheets and rivet.

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Impact Response of Aluminum Foam Sandwiches for Light-Weight Ship Structures

Cited by 39 publications

References 13 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

Mechanical Behaviour of the Porous and Foam Aluminium in Conditions of Compression: Determination of Key Mechanical Characteristics

Self-Piercing Riveting of Metal Foam Sandwich Structures

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