Investigates fatigue behavior in aluminum specimens with impact damage, indicating minimal influence of impact speed.
The present study investigates the axial fatigue behavior of hourglass-shaped specimens made of 7075-T6 aluminum alloy subjected to localized impact damage. The specimens were impacted at different speeds using a steel sphere and subsequently tested under axial fatigue loading. The results of the experimental tests reveal similar fatigue strengths across the investigated impact speeds, with a non-monotonic trend. The data suggest that impact speed does not have a significant influence on fatigue performance within the tested range.
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Arcieri et al. (2026) studied this question.
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