Design variables influencing the fatigue of Al 2024-T3 in riveted aircraft lap joints: Squeeze force and initial fit tolerance
Source abstract
Abstract
Abstract This study experimentally analyzed the influence of squeeze force and initial fit tolerance on the fatigue property of a riveted aircraft lap joint. All specimens were prepared under load control and tested under six levels of fatigue loads. The results showed that an initially oversized rivet might be detrimental to fatigue-life improvement. Increasing the squeeze force within an allowable range could extend the fatigue life generally. A relative decrease was also observed at a higher range of squeeze force. A higher fatigue load was likely to weaken the effect of the interference fit. The reduced fatigue life at higher squeeze forces could be clearly explained in terms of the fretting characteristics on the faying surface as a result of different squeeze forces and load levels. This study suggests that, to fully extend the fatigue life of riveted lap joints, the influence of working fatigue loads must be considered in the structure design.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fatigue and fracture mechanics · Mechanical stress and fatigue analysis · Mechanical Failure Analysis and Simulation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (40)
Show source-provided references
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