Analysis of Crack Growth Retardation after Single Overload Based on FEM Simulation and CORPUS Model Prediction

Simulation of the delay effect after applying a simple overload on alloys of aluminum 2024T351 using the Willemborg model

“…In addition, experience shows that the damage induced by a given cycle may depend on the previous history of loading [7][8][9]. It has now been found that the application of an overload cycle during a fatigue crack propagation leads to a slowing of the crack propagation speed, in some cases to a stop of this crack [10][11][12], this phenomenon of delay due to the application of an overload, several authors [13][14][15], proposed different models to explain the causes due to the slowing of the crack propagation speed. These different approaches can be grouped into three categories of models, based on: i) the interaction effects of the plastic areas at the tip of the crack.…”