Naslov
BENDING STIFFNESS OF FOAMED ALUMINIUM PROFILES

Autori
Filetin, Tomislav, Marić, Gojko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Mechanics and Materials in Design / Gomes, J.F. Silva ; Meguid, Shaker A. - Leca do Balio : INEGI - Instituto de Engenharia Mecanica e Gestao Industrial, 2006, 373-374

Skup
Mechanics and Materials in Design - M2D'2006

Mjesto i datum
Porto, Portugal, 24.07.2006. - 26.07.2006

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
aluminium foams; bending stiffness; structural shapes

Sažetak
Aluminium foams have specific combination of properties like e.g. low density, high specific stiffness especially in sandwich structures, very good energy absorption, remarkable vibration attenuation, high fire resistance and corrosion resistance. Almost all properties are basically determined by the type of cells (closed or open), their size and distribution i.e. relative density. This article focuses on testing and determining the bending stiffness and moment of inertia for different foamed cross section shapes, which are very important for analysis of behaviour of the lightweight stiff construction elements. The different shapes - round, quadratic, hexagonal and I-shaped have been foamed with powder metallurgical FOAMINAL-ALULIGHT process. Foam has been made from alloy AlSi12 with density of 1000 kg/m3 and all of the shapes have had the same cross section area and volume. The four-point bending test was applied. From the elastic share of load-deflection diagram the bending stiffness (EI) and moment of inertia (I) have been determined for each cross section shape. I-shaped profile has the highest bending stiffness comparing to the other shapes, which is in good correlation with bending stiffness of such solid shapes. The common relation between bending stiffness and the moments of inertia of foamed and solid shape have been determined. These relations for each shape strongly depend on relative foam density. The future investigations should verify these relations by testing foamed cross section shapes with different densities.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

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