Fatigue of Notched Standard Specimens - The Influence of the Stress Gradient on the S-N Curve in AL2024

Description

The fatigue life of three designs of notched aluminium specimens with nominally similar stress concentration factor K_t is compared by experimental testing. A dependency of the fatigue life on the stress gradient is shown. By comparison to unnotched specimens, the fatigue stress concentration factor K_t,f can be obtained by applying a correction factor to the nominal K_t . Usual correction factors underestimate the effect by a large extent and should be re-evaluated to utilise the full potential of the material.

Period	08 Sept 2022
Event title	33rd Congress of the International Council of the Aeronautical Sciences
Event type	Conference
Location	SwedenShow on map