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Detekcija razpok pri vibracijskem utrujanju z uporabo digitalne korelacije slik
ID Novak, Nejc (Author), ID Česnik, Martin (Mentor) More about this mentor... This link opens in a new window, ID Boltežar, Miha (Co-mentor)

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Abstract
V zaključni nalogi je predstavljena metoda za identifikacijo razpok s pomočjo digitalne korelacije fotografij. Metodologija zajema sintetični preizkus delovanja optičnih metod, nato pa realni eksperiment, pri katerem smo vzorce iz aluminija na stresalniku vzbujali in s hitro kamero opazovali visoko frekvenčno odpiranje razpoke. Analiza posnetkov je bila opravljena v programskem okolju Python. Na vseh treh vzorcih so bile identificirane razpoke v zgodnji fazi nastanka.

Language:Slovenian
Keywords:optične metode, detekcija razpok, digitalna korelacija slik, metoda Lucas Kanade, hitra kamera, sinusno vzbujanje
Work type:Final paper
Typology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Place of publishing:Ljubljana
Publisher:[N. Novak]
Year:2022
Number of pages:XIII, 33 str.
PID:20.500.12556/RUL-135169 This link opens in a new window
UDC:620.1/2:669.71(043.2)
COBISS.SI-ID:99062275 This link opens in a new window
Publication date in RUL:26.02.2022
Views:677
Downloads:99
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Secondary language

Language:English
Title:Digital image correlation based crack detection during vibration fatigue
Abstract:
The final thesis presents a crack identification method based on the digital image correlation technique. The methodology included synthetic testing of optical methods, followed by a real experiment in which we excited aluminum samples by a shaker and observed the high-frequency crack opening with a fast camera. The image analysis was performed in the Python software environment. In all the three samples, cracks were identified at an early stage.

Keywords:optical method crack detection digital image correlation, Lucas Kanade method, fast camera, sine excitation

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