Accelerated vibration-fatigue characterization for 3D-printed structures : application to fused-filament-fabricated PLA samples

Česnik, Martin (avtor), Slavič, Janko (avtor), Boltežar, Miha (avtor)

Numerous processing parameters combined with long-duration fatigue tests pose a major challenge when assessing the fatigue parameters of 3D-printed structures. In this research, a fatigue-testing method is introduced where sample is excited with random-signal profile enclosing sample’s natural frequency. The innovative sample design is tailored for 3D-printing and is frequency-tuneable. The proposed approach results in significantly shorter fatigue tests due to higher loading frequency and simultaneous testing of multiple samples. Additionally, tracking of sample’s natural frequency and damping during fatigue tests is applicable. The proposed method was experimentally verified on PLA samples; obtained results were comparable with the available literature.

• Jezik: Angleški jezik
• Ključne besede: accelerated fatigue tests, random-signal excitation, specimen design, fused filament fabrication
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2023
• Št. strani: 12 str.
• Številčenje: Vol. 171, art. 107574
• PID: 20.500.12556/RUL-145241
• UDK: 539.4:620.178.3
• ISSN pri članku: 0142-1123
• DOI: 10.1016/j.ijfatigue.2023.107574
• COBISS.SI-ID: 141842691
• Datum objave v RUL: 13.04.2023

Gradivo je del revije

• Naslov: International journal of fatigue
• Skrajšan naslov: Int. j. fatigue
• Založnik: Elsevier
• ISSN: 0142-1123
• COBISS.SI-ID: 25643520

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: pospešeni testi utrujanja, vzbujanje z naključnim signalom, zasnova preizkušanca, izdelava s ciljnim nalaganjem filamenta

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0263
• Naslov: Mehanika v tehniki