04.1 - Material Issues, Fatigue and Damage Tolerance
FINITE ELEMENT MODEL DEVELOPMENT FOR SIMULTANEOUS CRACK PROPAGATION IN TWO COOPERATIVE LUGS
A.T.A. Melo¹, B.L. Nolli¹, C.A. Cimini Jr.¹; ¹Universidade Federal de Minas Gerais, Brazil
The dual crack simultaneous growth in different, but cooperative, lugs is one example of a scenario that the NASGRO software (wide spread tool used in crack growth analysis) do not predict. This way, this paper’s objective was to study this crack growth scenario. A FEA model was developed and validated to be used as a design tool. It was proposed another way to evaluate the beta-curve.