| Naslov: | Introducing auxetic behavior to syntactic foams |
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| Avtorji: | ID Novak, Nejc (Avtor) ID Kolar, Miha (Avtor) ID Movahedi, Nima (Avtor) ID Vesenjak, Matej (Avtor) ID Ren, Zoran (Avtor) ID Fiedler, Thomas (Avtor) |
| Datoteke: | metals-14-00387-v2.pdf (8,46 MB) MD5: CC1E174DEA2C34620E70E9E6F3029E98
https://www.mdpi.com/2075-4701/14/4/387
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| Jezik: | Angleški jezik |
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| Vrsta gradiva: | Članek v reviji |
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| Tipologija: | 1.01 - Izvirni znanstveni članek |
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| Organizacija: | FS - Fakulteta za strojništvo
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| Opis: | This paper proposes an innovative multi-material approach for introducing auxetic behaviour to syntactic foams (SFs). By carefully designing the size, shape, and orientation of the SFs, auxetic deformation behaviour was induced. Re-entrant hexagon-shaped SF elements were fabricated using expanded perlite (EP) particles and a plaster of Paris slurry first. Then, an auxetic pattern of these SF elements was arranged within a stainless-steel casting box. The empty spaces between the SF elements were filled with molten aluminium alloy (A356) using the counter-gravity infiltration casting technique. The cast auxetic composite had a bulk density of 1.52 g/cm3. The cast composite was then compressed under quasi-static loading to characterise its deformation behaviour and to determine the mechanical properties, especially the Poisson’s ratio. The cast composite deformation was auxetic with a Poisson’s ratio of −1.04. Finite Element (FE) simulations were conducted to understand the deformation mechanism better and provide means for further optimisation of the geometry. |
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| Ključne besede: | auxetic cellular structure, syntactic foams, experimental tests, mechanical properties, Poisson’s ratio |
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| Status publikacije: | Objavljeno |
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| Verzija publikacije: | Objavljena publikacija |
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| Poslano v recenzijo: | 21.02.2024 |
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| Datum sprejetja članka: | 25.03.2024 |
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| Datum objave: | 26.03.2024 |
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| Založnik: | MDPI |
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| Leto izida: | 2020 |
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| Št. strani: | 12 str. |
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| Številčenje: | Vol. 14, iss. 4, [article no.] 387 |
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| PID: | 20.500.12556/DKUM-87763  |
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| UDK: | 539.2:620.1 |
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| COBISS.SI-ID: | 190687491  |
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| DOI: | 10.3390/met14040387  |
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| ISSN pri članku: | 2075-4701 |
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| Avtorske pravice: | © 2024 by the authors |
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| Datum objave v DKUM: | 28.03.2024 |
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| Število ogledov: | 474 |
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| Število prenosov: | 44 |
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| Metapodatki: |  |
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| Področja: | Ostalo
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