The influence of consecutive dynamic and gigacycle fatigue loads on the lifetime of the aluminum alloys AlMg6 and D16T is studied to explore the morphology (roughness scaling) of the fracture surface and generalized fatigue crack kinetics taking into account the correlated behavior of defects at the crack tip area (process zone). The samples are preloaded dynamically by a split Hopkinson bar device. Fatigue tests of preloaded samples are conducted on a Shimadzu USF-2000 ultrasonic fatigue testing machine. A New-View 5010 interferometer-profiler of high structural resolution (0.1 nm) is used for quantitative fracture surface analysis, which provides the data allowing us to find correlation between the mechanical properties and scale-invariant characteristics of damage-induced roughness formed under dynamic and gigacycle fatigue loads.
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19 December 2018
MECHANICS, RESOURCE AND DIAGNOSTICS OF MATERIALS AND STRUCTURES (MRDMS-2018): Proceedings of the 12th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures
21–25 May 2018
Ekaterinburg, Russia
Research Article|
December 19 2018
Investigation of the influence of consecutive dynamic and gigacycle fatigue loads on the lifetime of aluminum alloys AlMg6 and D16T
V. Oborin;
V. Oborin
a)
1
Institute of Continuous Media Mechanics, RAS (Ural Branch)
, 1 Ak. Koroleva St., Perm, 614013, Russia
a)Corresponding author: [email protected]
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M. Sokovikov;
M. Sokovikov
1
Institute of Continuous Media Mechanics, RAS (Ural Branch)
, 1 Ak. Koroleva St., Perm, 614013, Russia
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O. Naimark
O. Naimark
1
Institute of Continuous Media Mechanics, RAS (Ural Branch)
, 1 Ak. Koroleva St., Perm, 614013, Russia
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a)Corresponding author: [email protected]
AIP Conf. Proc. 2053, 030048 (2018)
Citation
V. Oborin, M. Sokovikov, O. Naimark; Investigation of the influence of consecutive dynamic and gigacycle fatigue loads on the lifetime of aluminum alloys AlMg6 and D16T. AIP Conf. Proc. 19 December 2018; 2053 (1): 030048. https://doi.org/10.1063/1.5084409
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