Izračun polja napetosti iz izmerjenega polja deformacij

zaključna naloga Univerzitetnega študijskega programa I. stopnje Strojništvo - Razvojno raziskovalni program

Veronika Ribaš (Author), Miroslav Halilovič (Mentor), Bojan Starman (Co-mentor)

Abstract

Vsebina zaključne naloge temelji na digitalni korelaciji slik, s katero pomerimo polja pomikov in deformacij v obremenjenih izdelkih. Digitalno pridobljene podatke nato uporabimo za določitev obremenitev v izdelku, s katerimi lahko napovemo življenjsko dobo in nosilnost izdelka. Zaradi različnosti materialov v večini primerov reološke zveze in materialni parametri niso znani, zato ne moremo določiti polja napetosti. Če lahko predpostavimo izotropnost materiala in posledično sousmerjenost deformacij in napetosti lahko določimo napetostno stanje z uporabo metode končnih razlik.

Keywords

diplomske naloge;metoda končnih razlik;metoda korelacije digitalnih slik;Matlab;diskretizacija;ustaljen prevod toplote;polje napetosti;polje deformacije;

Data

Language:	Slovenian
Year of publishing:	2022
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FS - Faculty of Mechanical Engineering
Publisher:	[V. Ribaš]
UDC:	519.61:620.1(043.2)
COBISS:	122025731
Views:	244
Downloads:	36
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Computation of stress field from measured strain field
Secondary abstract:	The content of the final assignment is based on the Digital Image Correlation (DIC), with which we compare the displacement and deformation fields in loaded products. The digitally acquired data, we then use to determine the loads in the product, which can be used to predict the products lifespan and load capacity. Due to the variety of materials, in most cases the rheological relationships and material parameters are unknown, so we cannot determine the stress field. If we can assume the isotropic nature of the material and the consequent co-linearity of strains and stresses, we can determine the stress field using the finite difference method.
Secondary keywords:	thesis;finite difference method;digital image correlation;discretization;steady state heat transfer;stress field;strain field;
Type (COBISS):	Final paper
Study programme:	0
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Fak. za strojništvo
Pages:	XIII, 28 f.
ID:	16400977