doktorsko delo
Štefan Obid (Author), Miroslav Halilovič (Mentor)

Abstract

Karakterizacija mehanskih lastnosti materiala je ključna za razumevanje njegovega obnašanja pod različnimi obremenitvami in je osnova za izvajanje mehanskih simulacij. Pomembna je tako izbira konstitutivnega modela kot tudi mehanskih testov, na podlagi katerih je model kalibriran. Doktorsko delo obravnava oba vidika karakterizacije: prvi del predstavlja nov konstitutivni model za anizotropne materiale z nelinearnim odzivom in odvisnostjo od vrste obremenitvenega stanja, drugi del pa metodologijo, ki omogoča analitično določitev nateznega, tlačnega in strižnega odziva iz štiri-točkovnega upogibnega preizkusa.

Keywords

materialni odziv;konstitutivno modeliranje;materialno testiranje;karakterizacija materiala;natezno-tlačna asimetrija;upogibni test;

Data

Language: Slovenian
Year of publishing:
Typology: 2.08 - Doctoral Dissertation
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [Š. Obid]
UDC: 531/534:52-334.2:620.1(043.3)
COBISS: 231802883 Link will open in a new window
Views: 102
Downloads: 16
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Other data

Secondary language: English
Secondary title: Elastic potential based constitutive modelling of materials with consideration of stress triaxiality dependency
Secondary abstract: Characterization of the mechanical properties of a material is essential for understanding its behavior under various loads and is fundamental for conducting simulations. Both the selection of a constitutive model and the mechanical tests used for model calibration are crucial. This thesis addresses both aspects of characterization: the first part presents a new constitutive model for anisotropic materials with a nonlinear response and dependence on loading condition type, while the second part provides a methodology for analytical extraction of the tensile, compressive, and shear responses from a four-point bending test.
Secondary keywords: material response;constitutive modeling;material testing;material characterisation;tension-compression asymmetry;bending test;dissertations;Materiali;Disertacije;Modeliranje;
Type (COBISS): Doctoral dissertation
Study programme: 0
Thesis comment: Univ. v Ljubljani, Fak. za strojništvo
Pages: XXVI, 136 str.
ID: 26155475