Effect of crack flank holes on fatigue crack growth
Fecha
2023-01-07
Título de la revista
ISSN de la revista
Título del volumen
Editor
Elsevier
Resumen
The effect of drilling two symmetric holes along the crack flanks on the fatigue crack growth (FCG) rate was evaluated numerically. The FCG increases (decreases) when the crack tip is behind (ahead) the holes. This behaviour is enlarged both by increasing the diameter of the holes and by reducing the distance between them. This is consequence of the geometrical effect, which modifies the plastic zone size. Experimental work validated the numerical model, indicating that that cumulative plastic strain at the crack tip is an adequate crack driving force and that cyclic plastic deformation is the main damage mechanism of FCG.
Descripción
Q1, D1 (15/183 92.1% en Mechanical Engineering, IF 2023 = 5.7)
Palabras clave
Fatigue crack growth, CT Specimen, Crack flank holes, Crack closure, Numerical simulation
Citación
Neto, D.M., Cavaleiro, N., Sérgio, E.R., Jesus, J., Camacho-Reyes, A., Antunes, F.V., Effect of crack flank holes on fatigue crack growth, International Journal of Fatigue (2023), doi: https://doi.org/ 10.1016/j.ijfatigue.2023.107505