diplomsko delo
Boštjan Brunec (Author), Miran Ulbin (Mentor), Janez Kramberger (Co-mentor)

Abstract

Namen diplomskega dela je določitev dobe trajanja Lotus poroznega gradiva. Doba trajanja je izražena kot vsota potrebnih nihajev obremenitve za iniciacijo razpoke in nihajev za širjenje razpoke od začetne do kritične dolžine. Diplomsko delo zajema numerične modele Lotus poroznega gradiva, na katerih so v dveh delih izvedene numerične simulacije. Najprej so z numeričnimi simulacijami določena mesta iniciacije razpok. V nadaljevanju so z numeričnimi simulacijami prikazana širjenja začetnih razpok. Z numeričnimi simulacijami so pridobljeni podatki, ki so uporabljeni za izračun dobe trajanja.

Keywords

porozno gradivo;utrujanje;iniciranje razpoke;širjenje razpoke;metoda končnih elementov;diplomske naloge;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UM FS - Faculty of Mechanical Engineering
Publisher: [B. Brunec]
UDC: 519.6/.8:620.178.3(043.2)
COBISS: 18455062 Link will open in a new window
Views: 1237
Downloads: 82
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Other data

Secondary language: English
Secondary title: Determination of fatigue properties of lotus porous material with numerical simulations
Secondary abstract: The purpose of the thesis is to determine the service time of the Lotus porous material. The service time is expressed as the sum of all necessary loading cycles for the initiation of the crack and cycles for the spread of the crack from the starting to the critical length. The thesis includes numerical models of the Lotus porous material, on which are performed numerical simulations on two levels. Firstly, places of crack initiations are determined with numerical simulations. In continuation, the spreads of initial cracks are presented with numerical simulations. Through numerical simulations is gained the data, used for the calculation of the duration time.
Secondary keywords: porous material;fatigue;crack initiation;crack propagation;finite element method;
URN: URN:SI:UM:
Type (COBISS): Undergraduate thesis
Thesis comment: Univ. v Mariboru, Fak. za strojništvo
Pages: XI, 54 f.
ID: 8700869