TY - JOUR
T1 - Crack Growth Patterns of Aluminum Tubular Specimens Subjected to Cyclic Tensile Loads
AU - Abatta-Jacome, Lenin
AU - Caminos, Luis
AU - Gonzalez-Herrera, Antonio
AU - Garcia-Manrique, Jose Manuel
N1 - Publisher Copyright:
© 2024 by the authors.
PY - 2024/10
Y1 - 2024/10
N2 - This study presents a detailed analysis of a fatigue test campaign in order to identify different crack patterns. It was conducted on 6061-T6 aluminum tubular specimens featuring an internal diameter of 10 mm and different thicknesses (2, 3 and 4 mm). These specimens were subjected to cyclic tensile loads with a load ratio of R = 0.1, utilizing a sinusoidal load function at a frequency of 3 Hz. The investigation examines the crack growth rates, the stress intensity factor, and the final and intermediate fracture zones by applying overloads in some cases. The differences with two-dimensional specimens and the importance of this study for the interpretation of results with biaxial loading states are highlighted. The different states of crack growth detected are analyzed using artificial vision techniques. The differences between the exterior and interior faces of the specimen are revealed, and a series of states prior to the formation of the radial crack front expected in these specimens are identified.
AB - This study presents a detailed analysis of a fatigue test campaign in order to identify different crack patterns. It was conducted on 6061-T6 aluminum tubular specimens featuring an internal diameter of 10 mm and different thicknesses (2, 3 and 4 mm). These specimens were subjected to cyclic tensile loads with a load ratio of R = 0.1, utilizing a sinusoidal load function at a frequency of 3 Hz. The investigation examines the crack growth rates, the stress intensity factor, and the final and intermediate fracture zones by applying overloads in some cases. The differences with two-dimensional specimens and the importance of this study for the interpretation of results with biaxial loading states are highlighted. The different states of crack growth detected are analyzed using artificial vision techniques. The differences between the exterior and interior faces of the specimen are revealed, and a series of states prior to the formation of the radial crack front expected in these specimens are identified.
KW - SEM
KW - cyclic tensile loads
KW - fatigue crack growth
KW - tubular specimen
UR - http://www.scopus.com/inward/record.url?scp=85207679663&partnerID=8YFLogxK
U2 - 10.3390/met14101094
DO - 10.3390/met14101094
M3 - Article
AN - SCOPUS:85207679663
SN - 2075-4701
VL - 14
JO - Metals
JF - Metals
IS - 10
M1 - 1094
ER -