Inverzna določitev materialnega modela polimernih materialov izdelanih s pomočjo dodajalnih tehnologij na osnovi eksperimentov

magistrsko delo

Teo Makoter (Author), Nejc Novak (Mentor), Matej Borovinšek (Co-mentor)

Abstract

Magistrsko delo vsebuje postopek inverznega določanja materialnega modela polimernih materialov, ki so bili izdelani s postopki dodajalnih tehnologij. Pripravljeni preizkušanci iz materialov PLA in TPU so bili testirani z nateznim preizkusom, kjer so kot rezultat bili pridobljeni diagrami sile v odvisnosti od pomika. Rezultati preizkusov so bili urejeni, kritično ocenjeni in izdelani so bili diagrami povprečij preizkušancev določenega tipa, kjer je bila dodana še standardna deviacija. Dobljeni eksperimentalni rezultati so bili primerjani in analizirani. Izvedene so bile še računalniške simulacije s programskim paketom LS-Dyna, cilj katerih je bil izbrati materialni model in njegove parametre, s katerimi bi se karseda približali eksperimentalnim rezultatom preizkušancev iz materiala PLA. Dobljeni materialni parametri so bili predstavljeni v tabelah in dodan je bil še zaključek.

Keywords

metoda končnih elementov;natezni preizkus;dodajalne tehnologije;polimerni materiali;dinamične simulacije;magistrske naloge;

Data

Language:	Slovenian
Year of publishing:	2022
Typology:	2.09 - Master's Thesis
Organization:	UM FS - Faculty of Mechanical Engineering
Publisher:	[T. Makoter]
UDC:	62-112:004.414.23(043.2)
COBISS:	151284739
Views:	259
Downloads:	58
Average score:	0 (0 votes)
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Other data

Secondary language:	English
Secondary title:	Inverse determination of the material model of polymeric materials made with the additive manufacturing technologies based on experiments
Secondary abstract:	The master thesis contains a procedure for the inverse determination of the material model of polymeric materials produced by additive technologies. The prepared PLA and TPU specimens were tested by tensile testing, resulting in a force versus displacement diagrams. The test results were edited, critically evaluated and averaged to produce diagrams of the test specimens of the given type and a standard deviation was added. The experimental data obtained were compared and analyzed. A series of simulations were carried out using the LS-Dyna software package, the aim of which was to define the parameters of a selected material model that would be as close as possible to the experimental results of the PLA specimens. The resulting material models were presented in tables and a conclusion was added.
Secondary keywords:	finite element method;tensile test;additive technologies;polymeric materials;dynamic simulations;
Type (COBISS):	Master's thesis/paper
Thesis comment:	Univ. v Mariboru, Fak. za strojništvo, Konstrukterstvo
Pages:	1 spletni vir (1 datoteka PDF (XIII, 61 f.))
ID:	15602054