Single-process 3D-printed structures with vibration durability self-awareness

Palmieri, Massimiliano (avtor), Slavič, Janko (avtor), Cianetti, Filippo (avtor)

The recent advances in additive manufacturing technology allow the realization of single-process thermoplastic material extrusion (TME) 3D-printed embedded sensors, leading to the easy and inexpensive production of smart structures. While single-process TME dynamic strain sensors have already been researched, vibration durability self-awareness is more than just an additional 3D printed strain sensor and several questions need to be answered. Is the durability self-aware sensors position structure-specific? Is the fatigue life of the sensory element longer than the base structure? Does the fatigue influence the self-awareness capability? Those and several other questions are theoretically and experimentally addressed in this research. Two different fatigue identification methods are researched (i.e. the peak-response and the frequency-drop methods). It was found that the vibration durability self-aware structure printed in a single process is viable and the frequency-drop based method gives reliable fatigue estimation; the fatigue damage was correctly identified even in the case the sensory element was 3D printed in the fatigue zone and already significantly damaged. This research opens up new capabilities for self-aware TME 3D-printed structures.

• Jezik: Angleški jezik
• Ključne besede: additive manufacturing, thermoplastic material extrusion, vibration fatigue, smart structures
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Recenzirani rokopis
• Leto izida: 2021
• Št. strani: Str. 1-8, art. 102303
• Številčenje: Vol. 47
• PID: 20.500.12556/RUL-130962
• UDK: 004.925.84:621.79
• ISSN pri članku: 2214-8604
• DOI: 10.1016/j.addma.2021.102303
• COBISS.SI-ID: 76843523
• Datum objave v RUL: 20.09.2021

Gradivo je del revije

• Naslov: Additive manufacturing
• Založnik: Elsevier
• ISSN: 2214-8604
• COBISS.SI-ID: 520374041

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: dodajalne tehnologije, ekstruzija termoplastičnega materiala, vibracijska poškodovanost, pametne strukture

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: N2-0144
• Naslov: Optična metoda za obratovalno identifikacijo reduciranega nelinearnega modela

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: J2-1730
• Naslov: Polno zaznavanje prostorskih vibracij s hitro kamero z aplikacijami v digitalnih dvojčkih in oddaljenem zaznavanju