Vizualizacija deformacijskih in napetostnih polj

Gregorc, Jaka (author), Slavič, Janko (mentor)

Diplomska naloga rešuje problem fotorealistične vizualizacije deformacij in napetosti, dobljenih z metodo končnih elementov v Ansysu, v okolju Blender. Izvedena je bila statična analiza I-nosilca, izvoz geometrije in vozliščnih podatkov, rekonstrukcija s pomočjo Python skripte, animacija s pomočjo ključev oblike in barvna mapa ekvivalentnih napetosti. Optimizirane so bile svetlobne in render nastavitve ter izvedena digitalna korelacija slik (DIC) z algoritmom Lucas-Kanade v OpenCV. Rezultat je ponovljiv proces dela, ki omogoča natančno in vizualno bogato predstavitev numeričnih rezultatov.

• Language: Slovenian
• Keywords: fotorealistična vizualizacija, Ansys, Blender, napetostna polja, digitalna korelacija slik, Lucas-Kanade, Python skripte
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Year: 2025
• Number of pages: XI, 35 f.
• PID: 20.500.12556/RUL-171554
• ISBN: 247403523
• UDC: 620.172.21:004.92:519.61(043.2)
• Publication date in RUL: 28.08.2025

Secondary language

• Language: English
• Title: Visualization of strain and stress fields

Abstract

The thesis deals with the problem of photorealistic visualization of strain and stress obtained by the finite element method in Ansys, in the Blender environment. A static analysis of the I-beam was performed, geometry and nodal data were exported, reconstruction was performed using a Python script, shape-keys animation, and a color map of equivalent stresses. Lighting and rendering settings were optimized, and Digital Image Correlation (DIC) was carried out using the Lucas-Kanade algorithm in OpenCV. The result is a repeatable work process that allows for an accurate and visually rich presentation of numerical results.

• Keywords: photorealistic visualization, Ansys, Blender, stress fields, digital image correlation, Lucas-Kanade, Python scripts