Št. zadetkov: 10
Diplomsko delo
Oznake:
poroznost;teorija elastičnosti;brezmrežna numerična metoda;radialne bazne funkcije;efektivne mehanske lastnosti;programski jezik Fortran 2008;
Pri izdelavi kovinskih ulitkov se lahko pojavi nezaželjena poroznost. Obravnava vsake pore posebej je pri dimenzioniranju ulitkov, nesmiselna, smiselno pa je uporabiti homogen material z efektivnimi mehanskimi lastnostmi. Ker sta oblika in delež poroznosti lahko zelo različna, se pojavi problem dolo ...
Leto:
2017
Vir:
Fakulteta za strojništvo (UL FS)
Magistrsko delo
Oznake:
magistrske naloge;numerično modeliranje procesov;termo-mehanski sistemi;brezmrežne numerične metode;radialne bazne funkcije;algoritem s povratno preslikavo;vroče valjanje;
Vroče valjanje jekla je kompleksen fizikalen proces, ki zahteva sklopljeno termo-elasto-plastično obravnavo. V okviru magistrskega dela smo v obstoječe programsko okolje, s katerim na brezmrežni način rešujemo parcialne diferencialne enačbe, implementirali modul, ki omogoča iterativno reševanje neli ...
Leto:
2019
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
Von Mises elasto-plasticity;radial basis function;finite differences;polyharmonic splines;two dimensions;hybrid discretization;
Strong-form meshless methods received much attention in recent years and are being extensively researched and applied to a wide range of problems in science and engineering. However, the solution of elasto-plastic problems has proven to be elusive because of often non-smooth constitutive relations b ...
Leto:
2024
Vir:
Inštitut za kovinske materiale in tehnologije (IMT)
Izvirni znanstveni članek
Oznake:
thermo-mechanical modelling;von Mises small strain plasticity;hybrid radial basis function generated finite differences;polyharmonic splines;
A hybrid version of the strong form meshless Radial Basis Function-Finite Difference (RBF-FD) method is introduced for solving thermo-mechanics. The thermal model is spatially discretised with RBF-FD, where trial functions are polyharmonic splines augmented with polynomials. For time discretisation, ...
Leto:
2024
Vir:
Inštitut za kovinske materiale in tehnologije (IMT)
Izvirni znanstveni članek
Oznake:
visco-plastic material responses;hybrid radial basis;generated finite differences;polyharmonic splines;
This work extends our research on the strong-form meshless Radial Basis Function - Finite Difference (RBF-FD) method for solving non-linear visco-plastic mechanical problems. The polyharmonic splines with second-order polynomial augmentation are used for the shape functions. Their coefficients are d ...
Leto:
2024
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
steel bars;cooling bed;thermo-mechanical modelling;hybrid radial basis function;generated finite differences;residual stresses;
This paper represents Part 2 of the parallel paper Part 1, where the strong form hybrid RBF-FD method was developed for solving thermo-elasto-plastic problems. It addresses the industrial application of this novel meshless method to steel bars cooling on a cooling bed (CB) where the formation of res ...
Leto:
2024
Vir:
Inštitut za kovinske materiale in tehnologije (IMT)
Objavljeni znanstveni prispevek na konferenci
Oznake:
cooling bed;steel bars;thermo-mechanics;strong form;meshless method;
After the continuous hot-rolling process, steel bars are immediately placed on the cooling bed. At the beginning of the cooling, the material is at high temperatures, and the yield strength is low. Due to thermal load, yield strength can be exceeded, and permanent plastic strains start accumulating, ...
Leto:
2023
Vir:
Repozitorij Univerze v Ljubljani (RUL)
Objavljeni znanstveni prispevek na konferenci
Oznake:
kontinuirano ulivanje jekla;termo-mehanika;močna formulacija;brezmrežne metode;continuous casting of steel;thermo-mechanics;strong form;meshless methods;
This study presents a new strong-form meshless method to solve the thermo-mechanical problem of the solidification process in the continuous casting of steel. A two-dimensional slice that travels in the casting direction is modelled in the Lagrangian system. The newly developed mechanical model is o ...
Leto:
2024
Vir:
Fakulteta za strojništvo (UL FS)
Objavljeni znanstveni prispevek na konferenci
Oznake:
brezmrežne metode;fazno polje četrtega reda;meshless methods;fourth-order phase-field;
The prediction of crack propagation in fracture mechanics is still a fundamental challenge. In recent decades, phase-field formulation emerged as a powerful tool for the simulation of crack evolution, which offers a continuous representation of cracks from intact to broken material. For the first ti ...
Leto:
2024
Vir:
Fakulteta za strojništvo (UL FS)
Diplomsko delo
Oznake:
mladostniki;radikalizacija;preventivno delovanje;lokalno okolje;Mladina;Radikalizem;Institucije;Študije primerov;Velenje (Slovenija);Slovenija;Diplomska dela;
Radikalizacija predstavlja enega izmed večjih socialnih in varnostnih izzivov sodobnih družb. Zaradi preprečevanja številnih pojavnih oblik in negativnih posledic se je izoblikovala potreba po preventivnem delovanju in zaščiti najranljivejših družbenih skupin, v katero spadajo tudi mladostniki. V ok ...
Leto:
2019
Vir:
Fakulteta za družbene vede (UL FDV)