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Title:Numerična simulacija varjenja
Authors:ID Štumberger, Matevž (Author)
ID Kramberger, Janez (Mentor) More about this mentor... New window
ID Vuherer, Tomaž (Comentor)
Files:.pdf MAG_Stumberger_Matevz_2016.pdf (3,50 MB)
MD5: A0F75FE90932CB48950326C5A661FF6F
 
Language:Slovenian
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FS - Faculty of Mechanical Engineering
Abstract:Magistrsko delo predstavlja numerično simulacijo varjenja. Varjenje je spajanje kovinskih ali nekovinskih delov s postopki dodajanja materiala. Proces varjenja je v programskem paketu Abaqus/CAE obravnavan kot nevezana toplotno – mehanska analiza z ločenim izračunom temperaturnega in napetostnega polja. Gibajoči toplotni varilni vir je modeliran na način definiranja začetne temperaturne porazdelitve v zvarni kopeli. Zaradi kompleksnosti fizikalnega dogajanja v zvarni kopeli je potrebno določene fizikalne procese zanemariti. Temeljno oviro pri numeričnem modeliranju varjenja predstavlja pridobitev ustreznih toplotnih in mehanskih lastnosti materiala v odvisnosti od temperature. Iz tega razloga so enaki podatki uporabljeni za osnovni in dodajni material. Analiza prenosa toplote je obravnava kot časovno odvisen problem in je uporabljena za izračun zaostalih varilnih napetosti pri napetostno – deformacijski analizi.
Keywords:varjenje, termične obremenitve, zaostale napetosti, numerične simulacije, nevezana toplotno – mehanska analiza, Abaqus/CAE
Place of publishing:Maribor
Publisher:[M. Štimberger]
Year of publishing:2016
PID:20.500.12556/DKUM-57819 New window
UDC:519.876.5:621.791(043.2)
COBISS.SI-ID:19551766 New window
NUK URN:URN:SI:UM:DK:DOXGFUFE
Publication date in DKUM:11.04.2016
Views:3312
Downloads:438
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FS
:
ŠTUMBERGER, Matevž, 2016, Numerična simulacija varjenja [online]. Master’s thesis. Maribor : M. Štimberger. [Accessed 18 March 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=57819
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Secondary language

Language:English
Title:Numerical welding simulation
Abstract:The master’s thesis presents numerical welding simulation. Welding is a fabrication process that joins metal or non-metal materials, by adding molten filler material to base material. Welding process is modelled in Abaqus/CAE software as uncoupled thermo – mechanical analysis with separated calculation of thermal and stress field. The approach of defining the initial temperature distribution in weld pool is used to model moving heat source. It is necessary to simplify and neglect some physical processes in welding pool in order to decrease the level of complexity. The main problem by welding simulations is to obtain a temperature dependent characteristic material data. For that reason the same data were used for filler and base material. Transient heat transfer analysis was imported in structural analysis to calculate residual stresses.
Keywords:welding, thermal load, residual stresses, numerical simulations, uncoupled thermal – mechanical analysis, Abaqus/CAE


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