Experimental analysis of crack initiation and propagation in dynamically shear-loaded aluminium specimens using the digital image correlation method

Litrop, Aljaž (avtor), Zobec, Peter (avtor), Šeruga, Domen (avtor), Nagode, Marko (avtor), Klemenc, Jernej (avtor)

The present paper investigates crack growth in specially designed specimens of 6061 aluminium alloy sheets subjected to dynamic shear loads. The specimens were tested with a low-frequency alternating shear load until complete fracture. The main objective of this work was to observe the crack initiation and growth under alternating shear load using the Digital Image Correlation (DIC) method. Each time the peak amplitude was reached, a photograph of the shear area on the specimen surface was taken to investigate crack grow. The length of the crack in every load cycle was then estimated by an algorithm using the DIC strain fields as input data. The DIC results were compared to FE. The observation of the shear strain component is presented as the most appropriate method to predict the location of the crack even before its initiation.

• Jezik: Angleški jezik
• Ključne besede: fatigue, shear, crack propagation, digital image correlation method
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Recenzirani rokopis
• Datum objave: 31.05.2022
• Leto izida: 2022
• Št. strani: 11 str.
• Številčenje: Vol. 139, art. 106495
• PID: 20.500.12556/RUL-137291
• UDK: 531.391:620.178.3
• ISSN pri članku: 1350-6307
• DOI: 10.1016/j.engfailanal.2022.106495
• COBISS.SI-ID: 111079427
• Datum objave v RUL: 09.06.2022

Gradivo je del revije

• Naslov: Engineering failure analysis
• Skrajšan naslov: Eng fail. anal.
• Založnik: Elsevier
• ISSN: 1350-6307
• COBISS.SI-ID: 15354117

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.
• Začetek licenciranja: 31.05.2022
• Vezano na: Available online

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: utrujanje, strig, rast razpoke, metoda digitalne korelacije slik

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0182
• Naslov: Razvojna vrednotenja

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Program financ.: Young researchers
• Številka projekta: ARRS-MR-LP-2020/544