Your browser does not allow JavaScript!
JavaScript is necessary for the proper functioning of this website. Please enable JavaScript or use a modern browser.
Repository of the University of Ljubljana
Open Science Slovenia
Open Science
DiKUL
slv
|
eng
Search
Browse
New in RUL
About RUL
In numbers
Help
Sign in
Details
Odpornost notranjosti 3D-natisnjenih struktur na vibracijsko utrujanje
ID
Pečnik, Tim
(
Author
),
ID
Česnik, Martin
(
Mentor
)
More about this mentor...
,
ID
Slavič, Janko
(
Comentor
)
PDF - Presentation file,
Download
(71,94 MB)
MD5: BA9C06D4E0941ADCFE2116E1153499A9
Image galllery
Abstract
Pri dinamičnih obremenitvah strukture se pojavijo napetosti tako na zunanjih vlaknih kot v notranjosti. Glavni cilj naloge je numerična in eksperimentalna analiza napetostnega stanja v notranjih vlaknih 3D natisnjene PLA strukture ter detekcija loma pri dolgotrajnih ponavljajočih se obremenitvah, tj. utrujanju. V nalogi je izvedeno parametrično modeliranje v programu Ansys z metodo končnih elementov (MKE) in analiza vpliva sprememb parametrov na mehanske lastnosti 3D natisnjenih struktur iz PLA pod dinamičnimi obremenitvami. Uporabili smo celovit pristop, ki povezuje parametrično modeliranje, simulacije, eksperimentalno testiranje ter modalno analizo za določitev lastnih frekvenc in oblik. Eksperimentalno testiranje s hitro kamero na mestih maksimalnih napetosti omogoča detekcijo loma. Rezultati so razkrili ključne točke napetosti in loma v notranjosti strukture.
Language:
Slovenian
Keywords:
3D natisnjene strukture
,
notranje poškodbe
,
dinamične obremenitve
,
numerično modeliranje
,
utrujanje
Work type:
Master's thesis/paper
Typology:
2.09 - Master's Thesis
Organization:
FS - Faculty of Mechanical Engineering
Year:
2024
Number of pages:
XX, 52 str.
PID:
20.500.12556/RUL-165112
UDC:
621.9.04:620.178.3:531.22(043.2)
COBISS.SI-ID:
220413955
Publication date in RUL:
23.11.2024
Views:
221
Downloads:
78
Metadata:
Cite this work
Plain text
BibTeX
EndNote XML
EndNote/Refer
RIS
ABNT
ACM Ref
AMA
APA
Chicago 17th Author-Date
Harvard
IEEE
ISO 690
MLA
Vancouver
:
PEČNIK, Tim, 2024,
Odpornost notranjosti 3D-natisnjenih struktur na vibracijsko utrujanje
[online]. Master’s thesis. [Accessed 17 May 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=165112
Copy citation
Share:
Secondary language
Language:
English
Title:
Vibration-fatigue resilience of interior in 3D-printed structures
Abstract:
Under dynamic loads, structures experience stress both on the outer fibers and internally. The main objective of this thesis is the numerical and experimental analysis of the stress state in the internal fibers of 3D printed PLA structures and the detection of fractures under prolonged cyclic loading, also known as fatigue. Parametric modeling was conducted in Ansys using the finite element method (FEM) to analyze the mechanical properties of 3D printed PLA structures under dynamic loads and assess the impact of parametric changes on these properties. A comprehensive approach was used, combining parametric modeling, simulations, experimental testing, and modal analysis to determine natural frequencies and modes. Experimental testing with a high-speed camera at points of maximum stress enabled the detection of fractures. The results revealed key points of stress and fractures within the structure.
Keywords:
3D printed structures
,
internal damage
,
dynamic loads
,
numerical modeling
,
fatigue
Similar documents
Similar works from RUL:
Feasibility Analysis of Inverse Identification of Constitutive Model Parameters Based on Digital Image Correlation
Experimental analysis of crack initiation and propagation in dynamically shear-loaded aluminium specimens using the digital image correlation method
Experimental crack path analysis of aluminum alloy specimen under dynamic shear loading using digital image correlation method
Design of a shear test fixture system and optimization of a metal shear specimen for cyclic loading
Application of digital image correlation formeasurement of specific deformations in a thermal chamber
Similar works from other Slovenian collections:
Determining the fatigue crack growth rate in welded joints for small fatigue crack extension
Microcrack initiation and growth in heat-risistant 15Kh2MFA steel under cyclic loading
Evolution under alliance-specific cyclical invasion rates
The possibility of measuring dynamic response of structures using non-contact geodetic methods
Crack identification in gear tooth root using adaptive analysis
Back