1.
Phys Rev Lett
; 127(18): 185501, 2021 Oct 29.
Artículo
en Inglés
| MEDLINE
| ID: mdl-34767392
RESUMEN
We investigate elastic-plastic adhesive wear via a continuum variational phase-field approach. The model seamlessly captures the transition from perfectly brittle, over quasibrittle to elastic-plastic wear regimes, as the ductility of the contacting material increases. Simulation results highlight the existence of a critical condition that morphological features and material ductility need to satisfy for the adhesive junction to detach a wear debris. We propose a new criterion to discriminate between noncritical and critical asperity contacts, where the former produce negligible wear while the latter lead to significant debris formation.