INVESTIGADORES
BERTOLINO Graciela Mabel
congresos y reuniones científicas
Título:
3D shear-mode fatigue crack growth in maraging steel
Autor/es:
VERONIQUE DOQUET; QUANG HIEN BUI; LYSANDRA ALVES; GRACIELA BERTOLINO
Lugar:
Palaiseau, Francia
Reunión:
Otro; Euromech - Multiscale effects in fatigue of metals; 2010
Institución organizadora:
Euromech
Resumen:
Fatigue crack growth tests in mixed-mode II + III were performed onTi-6Al-4V and the 3D evolutions of the crack fronts, measured by SEM afterinterrupted tests, were analyzed with fracture mechanics or a shear-dominatedfatigue criterion applied ahead of the crack front after elastic-plasticcomputations. The latter predicts that the crack growth rate should be a powerfunction of (ΔKII2+ΔKIII2)1⁄2 rather than of ΔG, which appears compatible withthe experimental results.
