SIMULATION OF FATIGUE CRACK GROWTH IN RICTION STIR WELDED JOINTS IN 2024-T351 AL ALLOY
Keywords:
Simulation, Finite element method, Fatigue crack growth, Paris model, Friction stir weldinAbstract
The aim of the present work is to predict the fatigue life of friction stir welded joints in 2024-T351 Alalloy using the finite element method in the framework of fracture analysis code for two-dimensions(FRANC2D/L). The simulation was conducted under linear elastic fracture mechanics, based onParis’ model and maximum tensile stress and displacement correlation methods were applied tocalculate the crack direction and stress intensity factor, respectively. One strategy has beenpresented, how crack propagation was investigated based on the corresponding Paris constants foreach FSW zone. Numerical results were validated with experimental and analytical work.
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