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Altering the elastic properties of 3D printed poly-lactic acid (pPLA) parts by compressive cyclic loading
Pepelnjak, Tomaž (Avtor), Karimi, Ako (Avtor), Maček, Andraž (Avtor), Mole, Nikolaj (Avtor)

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Izvleček
In designing high-performance, lightweight components, cellular structures are one of the approaches to be considered. The present study aimed to analyze the effect of the infill line distance of 3D printed circular samples on their compressive elastic behavior. Lightweight cellular poly-lactic acid (PLA) samples with a triangular infill pattern were exposed to cyclic compressive loading and their stiffness was investigated. PLA is one of the most commonly used thermoplastic materials in additive manufacturing using the fused filament fabrication (FFF) process. Cylindrical samples with a diameter of 11.42 mm and a height of 10 mm were printed using FFF technology with two different infill line distances (1.6 mm and 2.4 mm). Comparing the nominal compressive stress-nominal strain curves under cyclic loading showed that the first cycle response was significantly different with respect to the subsequent ones. Furthermore, an analysis of the dependence of the modulus of elasticity on the effects of cyclic loading was performed. It was found that through elastic deformation, and combined elastic and plastic deformation, the samples% properties such as stiffness could be altered

Jezik:Angleški jezik
Ključne besede:3D printing, compression test, cyclic loading
Vrsta gradiva:Članek v reviji (dk_c)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Leto izida:2020
Št. strani:f. 1-18
Številčenje:Vol. 13, iss. 19
UDK:004.92:620.173(045)
ISSN pri članku:1996-1944
DOI:10.3390/ma13194456 Povezava se odpre v novem oknu
COBISS.SI-ID:32536579 Povezava se odpre v novem oknu
Število ogledov:10
Število prenosov:3
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
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Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Številka projekta:P2-0248
Naslov:Inovativni izdelovalni sistemi in procesi
Akronim:ISP

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Številka projekta:P2-0263
Naslov:Mehanika v tehniki
Akronim:SIM VIA-2

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:3D tiskanje, FFF, PLA, tlačni preizkus, ciklično obremenjevanje

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