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Title:
Analiza mehanskega obnašanja avksetičnega absorberja trkov : magistrsko delo
Authors:
ID
Mulej, David
(Author)
ID
Novak, Nejc
(Mentor)
More about this mentor...
Files:
MAG_Mulej_David_2022.pdf
(1,93 MB)
MD5: 216B024EE187BD2C93687683A4811139
PID:
20.500.12556/dkum/6090f70b-de38-4244-858c-7f2369ffec4b
Language:
Slovenian
Work type:
Master's thesis/paper
Typology:
2.09 - Master's Thesis
Organization:
FS - Faculty of Mechanical Engineering
Abstract:
V magistrski nalogi je predstavljena analiza mehanskega obnašanja avksetičnega absorberja trkov. Edinstvena lastnost avksetične strukture je, da imajo negativen Poissonov koeficient. Obravnavani absorberji, z osnovno celico oblike vbočenih šestkotnikov, so bili sestavljeni iz dvanajstih panelov upognjenih pod predpisanimi koti in zlepljeni skupaj v predpisano geometrijo. Obravnavali smo tri absorberje različnih debelin in pa gradiranega, kateri je bil sestavljen iz štirih panelov vseh treh različnih debelin. Z uporabo računalniških simulacij, ob uporabi metode končnih elementov, smo analizirali njihov odziv ob trku. Rezultate simulacij smo nato primerjali z rezultati eksperimentov, da smo validirali simulacijske modele. Iz rezultatov simulacij pa smo nato še izračunali najpomembnejše mehanske karakteristike absorberjev.
Keywords:
avksetične strukture
,
absorber trkov
,
eksperimentalni preizkus
,
računalniška simulacija
Place of publishing:
Maribor
Place of performance:
Maribor
Publisher:
[D. Mulej]
Year of publishing:
2022
Number of pages:
1 spletni vir (1 datoteka PDF (IX, 45 f.))
PID:
20.500.12556/DKUM-81880
UDC:
62-112:004.414.23(043.2)
COBISS.SI-ID:
147979523
Publication date in DKUM:
29.06.2022
Views:
548
Downloads:
51
Metadata:
Categories:
KTFMB - FS
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MULEJ, David, 2022,
Analiza mehanskega obnašanja avksetičnega absorberja trkov : magistrsko delo
[online]. Master’s thesis. Maribor : D. Mulej. [Accessed 7 April 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=81880
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Licences
License:
CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:
http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:
The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:
13.06.2022
Secondary language
Language:
English
Title:
Mechanical behaviour analysis of an auxetic crash box
Abstract:
The master's thesis presents an analysis of the mechanical behavior of an auxetic crash absorber. A unique feature of auxetic structures is that they have a negative Poisson's ratio. The absorbers observed in the study, had a concave hexagon-shaped base cell and consisted of twelve panels bent at prescribed angles and glued together to the prescribed geometry. The study considered three absorbers of different thicknesses and a graded one, which consisted of four panels of all three different thicknesses. Using computer simulations with the finite element method, we analyzed their collision response. The simulations results were then compared to the experimental results to validate the simulations models. From the results of the simulations, we then also calculated the most important mechanical characteristics of the crash absorbers.
Keywords:
auxetic structures
,
crash absorber
,
experimental test
,
computer simulation
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