The Influence of Variation of Cycling Vortex Wind Loading on The Dynamic Crack Propagation in Aircraft Wing

Aircraft wings experience various forces during flight, including thrust, drag, and sudden changes due to storms. While these forces contribute to overall stability, they can also lead to the formation and growth of cracks over time, a phenomenon known as fatigue. This paper examines the effects of fluctuating vortex wind loads over the extended lifespan of the aircraft, specifically addressing fatigue and the potential for fractures. sophisticated engineering software (ANSYS) has been employed to simulate unsteady wind loads on the aircraft wing, representing it as a simple rectangular cantilever structure. This model took into account the transient vortex wind load as well as lift and drag forces that were spread across the wing surfaces.  the resulting lift, drag, and total load distribution on the wing have been analyzed using computational fluid dynamics (CFD). These loads were then incorporated into the wing model to evaluate the distribution of shear and equivalent stresses. cracks grow on the lower surface of airfoil manufacture from AL2024-T3 Have been investigating when subjected to non-preoperational multi-axial cyclic loading. This analysis of fracture mechanics employed three methods: Theoretical calculations: the Griffith energy criterion has been used to predict crack behavior. Novel experimental setup: a new rig has been designed to directly observe the effects of multi-axial cyclic loading on crack growth.