Analiza samodejnega obnavljanja nosilca z integriranim vaskularnim sistemom

Vozelj, Žak (author), Šeruga, Domen (mentor), Klemenc, Jernej (comentor)

Izdelki, orodja, nosilci in različne konstrukcije, ki nam lajšajo vsakodnevna opravila, so ves čas izpostavljeni različnim dinamičnim obremenitvam. Dinamično obremenjevanje povzroča nastanek in širjenje razpok, ki na koncu privedejo do popolne odpovedi posameznega izdelka. Za nadzorovanje življenjske dobe izdelkov so bili tako razviti različni matematični modeli, na podlagi katerih se izdelki pred dosegom kritične poškodbe ustrezno nadomestijo z novimi. Iztrošeni izdelki tako pristanejo na različnih odlagališčih, kjer zaradi prenatrpanosti predstavljajo veliko okoljsko obremenitev. Z namenom zmanjšanja akumulacije iztrošenih izdelkov se je pričela raziskovati možnost integracije samodejnega obnavljanja, ki bi preprečilo nastanek kritične poškodbe in podaljšalo življenjsko dobo posameznega izdelka. V ta namen smo v delu raziskali možnost izdelave nosilca z integriranim vaskularnim sistemom s pomočjo tehnologije selektivnega laserskega sintranja in fotopolimerizacije v kadi. Nosilec smo uspeli izdelati z metodo fotopolimerizacije, pri čemer smo prehodnost vseh kanalov dokazali z uporabo fotoluminiscentne barve. Z dinamičnim obremenjevanjem in vmesnim brizganjem obnovitvenega sredstva v kanale nosilca smo dokazali možnost mešanja obeh komponent sredstva znotraj kanalov in posledično podaljševanje življenjske dobe nosilca.

• Language: Slovenian
• Keywords: samodejno obnavljanje, integrirani vaskularni sistemi, obnovitvena sredstva, selektivno lasersko sintranje, fotopolimerizacija v kadi, viskoelastičnost, dinamično obremenjevanje
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [Ž. Vozelj]
• Year: 2022
• Number of pages: XXVI, 93 str.
• PID: 20.500.12556/RUL-134766
• UDC: 621.9.048.7:620.178(043.2)
• COBISS.SI-ID: 97523971
• Publication date in RUL: 01.02.2022

Secondary language

• Language: English
• Title: Analysis of self-healing capability of a beam with an integrated vascular system

Abstract

Products, tools and various constructions that make our tasks easier are constantly exposed to various dynamic loads. Dynamic loading can cause formation of cracks which ultimately leads to complete failure of individual product. In order to control the wear and tear of products various mathematical models have been developed which predict service life of components and their replacement before critical damage occurs. Worn out components that are discarded in different ways may pose an environmental hazard. In order to reduce service intervals and accumulation of worn products integration of self-healing mechanisms began to explore. Here we present manufacturing process of a beam with an integrated vascular system and its self-healing ability. Beam was successfully manufactured with vat polymerization and photoluminescent colour was applied to prove the transience of vascular channels. Dynamic loading and intermediate injection of healing agent into vascular channels was used to test the mixing of two part healing agent in vascular channels and to demonstrate the ability of self-healing for increase in lifespan of a printed beam.

• Keywords: self-healing, integrated vascular systems, healing agents, selective laser sintering, vat polymerization, viscoelasticity, dynamic loading