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Open AccessArticle

Endurance of Damping Properties of Foam-Filled Tubes

1
Politecnico di Milano, Dipartimento di Meccanica, via La Masa 1, Milan 20156, Italy
2
MUSP Lab, via Tirotti 9, Piacenza 29122, Italy
3
Technologie Supérieure, Département de génie mécanique, Montréal H3C 1K3, Canada
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Sven De Schampheleire
Materials 2015, 8(7), 4061-4079; https://doi.org/10.3390/ma8074061
Received: 20 May 2015 / Revised: 22 June 2015 / Accepted: 29 June 2015 / Published: 7 July 2015
(This article belongs to the Special Issue Metal Foams: Synthesis, Characterization and Applications)
The favorable energy-absorption properties of metal foams have been frequently proposed for damping or anti-crash applications. The aim of this paper is to investigate the endurance of these properties for composite structures, made by a metal or a hybrid metal-polymeric foam used as the core filling of a tubular metal case. The results of experimental tests are shown, run with two types of structures: 1) square steel tubes filled with aluminum or with hybrid aluminum-polymer foams; 2) round titanium tubes filled with aluminum foams. The paper shows that the damping properties of a foam-filled tube change (improve) with the number of cycles, while all other dynamic properties are nearly constant. This result is very important for several potential applications where damping is crucial, e.g., for machine tools. View Full-Text
Keywords: cellular metals; advanced pore morphology; vibrations; cyclic bending; interaction effect; metal foam cellular metals; advanced pore morphology; vibrations; cyclic bending; interaction effect; metal foam
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MDPI and ACS Style

Strano, M.; Marra, A.; Mussi, V.; Goletti, M.; Bocher, P. Endurance of Damping Properties of Foam-Filled Tubes. Materials 2015, 8, 4061-4079.

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