Usporedba primjene 2D i 3D digitalne korelacije slike u istraživanju deformacija metalnih materijala

undergraduate thesis

• Title (english): Comparison of the application of 2D and 3D digital image correlation in the investigation of deformations of metallic materials
• Author: Doris Ljiljak
• Mentor: Ivan Jandrlić (mentor)
• Mentor: Tin Brlić (komentor)
• Committee member: Ladislav Lazić (predsjednik povjerenstva)
• Committee member: Ivan Jandrlić (član povjerenstva)
• Committee member: Tin Brlić (član povjerenstva)
• Committee member: Ljerka Slokar Benić (član povjerenstva)
• Committee member: Anita Begić Hadžipašić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Metallurgy; Sisak
• Defense date and country: 2023-09-20, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Metallurgy

Abstract

Upotreba aluminija i njegovih legura je danas gotovo nezaobilazna tema. Poznato je da pojedine legure aluminija pokazuju određeni nehomogeni tok materijala prilikom njihovog oblikovanja plastičnom deformacijom u gotove proizvode, a povezuju se s pojavama Lüdersovih linija i/ili Portevin-Le Chatelier efekta. Prilikom istraživanja ovih pojava danas se uz statički vlačni pokus primjenjuju beskontaktne metode istraživanja kao što su metoda digitalne korelacije slike i termografija. Napretkom tehnologije napredovale su i metode istraživanja, tako su danas dostupne razne metode digitalne korelacije slike. U ovom završnom radu korištene su 2D i 3D metoda za korelaciju digitalne slike. Istraživanjima su dane usporedbe osjetljivosti dvaju različitih metoda pri praćenju i mjerenju promjena deformacije i brzine deformacije. Iz rezultata kvalitativne i kvantitativne analize zaključeno je kako pri određivanju deformacije nema razlike između korištenih metoda, dok u slučaju mjerenja brzine deformacije postoje određene razlike.

Abstract (english)

Today, use of aluminum and its alloys is almost unavoidable. It is well known that certain aluminum alloys, during their plastic deformation into finished products, exhibit a certain inhomogeneous flow of material associated with the appearance of Lüders bands and/or the Portevin-Le Chatelier effect. In the study of these phenomena, non-contact investigation methods, such as the digital image correlation and thermography, are used in addition to the static tensile test. The investigation methods have also evolved with the technological progress, so today there are different versions of methods that use digital image correlation. In this work, 2D and 3D methods were used for digital image correlation. The research provided comparison of the sensitivity of two different methods in monitoring and measuring deformation and strain rate changes. From the results of qualitative and quantitative analysis, it was concluded that there is no difference between the systems used in determining deformation, while there are some differences in measuring strain rate.

• Keywords: Digitalna korelacija slike; 2D DIC; 3D DIC; statičko vlačno ispitivanje; aluminijske legure
• Keywords (english): Digital image correlation; 2D DIC; 3D DIC; static tensile testing; aluminum alloys
• Language: croatian
• URN:NBN: urn:nbn:hr:115:555657
• Study programme: Title: Undergraduate study program Metallurgy; specializations in: Metallurgical Engineering, Industrial Ecology; Course: Industrial Ecology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka metalurgije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka metalurgije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-09-11 21:24:20