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Lezenje in relaksacija pri povišani temperaturi
ID Travnikar, Tomaž (Author), ID Nagode, Marko (Mentor) More about this mentor... This link opens in a new window, ID Šeruga, Domen (Comentor)

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Abstract
Pri razvoju mehansko in temperaturno obremenjenih strojnih elementov je ključno napovedati, kako se bo material odzval na tovrstne obremenitve. V prvem delu zaključne naloge je pregled literature na področju lezenja in relaksacije ter modeliranja napetostno-deformacijskih stanj. Namen diplomske naloge je na podlagi enačb iz literature napisati program v programskem jeziku Python, ki bo izračunal tako visko-plastičen kot elasto-plastičen odziv materiala na mehansko in temperaturno obremenitev. Program bo pri različnih temperaturah omogočal izračun odziva materiala tako pri kontroli sile kot pri kontroli deformacije. Rezultati modela bodo ovrednoteni in predlagane bodo možne izboljšave.

Language:Slovenian
Keywords:lezenje, relaksacija, napetosti, deformacije, napetostno-deformacijske krivulje, elasto-plastičnost, visko-plastičnost
Work type:Bachelor thesis/paper
Organization:FS - Faculty of Mechanical Engineering
Year:2024
PID:20.500.12556/RUL-160063 This link opens in a new window
Publication date in RUL:14.08.2024
Views:59
Downloads:10
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Secondary language

Language:English
Title:Creep and relaxation at elevated temperature
Abstract:
When developing mechanically and thermally stressed machine elements, it is crucial to predict how the material will react to such stresses. The first part reviews the literature on creep and relaxation and stress-strain modelling. The aim of the thesis is to write a Python program, based on the equations in the literature, that will calculate both the visco-plastic and elasto-plastic response of the material to mechanical and temperature loading. The program will allow the material response to be calculated at different temperatures for both stress and strain control. The results of the model will be evaluated and possible improvements will be suggested.

Keywords:creep, relaxation, stress, strain, stress-strain curves, elastoplasticity, viscoplasticity

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