Fretting and fatigue assessment of scalmalloy and AL7075-T651 shrink-fitted shafts
Source abstract
Abstract
• Fatigue comparison of AL7075-T651 and Scalmalloy in shaft-hub assembly. • Fretting fatigue model for shaft-hub assembly. • Testing and microscopy of both materials in simple fatigue and fretting fatigue in actual assembly. This work aims to study the effect of additive manufacturing under fretting fatigue conditions, an area in which there is still very little information. For this purpose, two test campaigns were carried out on a shaft-hub assembly subjected to bending using two different materials: the AL7075-T651 aluminium alloy and an aluminium alloy specifically designed for additive manufacturing, Scalmalloy®. To determine the contact stress and strain fields at the crack initiation site, a 3D FEM model was designed using the sub-model technique. After the tests, the crack paths were measured using a confocal microscope and compared with the numerical assessments. Finally, a traditional stress-based fatigue model was applied to predict the failure of the components, yielding estimations within a scatter band of 2.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Mechanical stress and fatigue analysis · Mechanical Failure Analysis and Simulation · Mechanical Engineering and Vibrations Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (45)
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