Fracture Mechanics and Spall Detachment in Cyclic Hertzian Contacts: Theory and Computer Simulation

Marie-Christine Baietto (1) , F. Colin , Bernard Villechaise (2)

1 LaMCoS - Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne]
2 UP - Université de Poitiers = University of Poitiers

A semi-analytical two-dimensional linear elastic model of multiple bent fatigue cracks is developed for contact loadings, taking into account friction between crack faces [1,2,3]. The model rests on the dislocation theory and on the contact problem solution between crack faces as a unilateral contact with friction. This model is used to predict particle detachment and crack propagation and direction under non proportional mixed mode loading conditions. A typical configuration that may lead to spall detachement is analysed.

Domaines: Mécanique des matériaux [physics.class-ph]

Marie-Christine Baietto, F. Colin, Bernard Villechaise. Fracture Mechanics and Spall Detachment in Cyclic Hertzian Contacts: Theory and Computer Simulation. D. Dowson; C.M. Taylor; T.H.C. Childs; M. Godet; G. Dalmaz. Wear Particles: Frorn the Cradle to the Grave, 21, Elsevier, pp.101-111, 1992, Tribology Series, 978-0-444-89336-9. ⟨10.1016/S0167-8922(08)70514-5⟩. ⟨hal-01951919⟩