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Article Dans Une Revue Physical Review Letters Année : 2021

Criterion for critical junctions in elastic-plastic adhesive wear

Stella Brach
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Sylvain Collet
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Résumé

We investigate elastic-plastic adhesive wear via a continuum variational phase-field approach. The model seamlessly captures the transition from perfectly brittle, over quasi-brittle 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 non-critical and critical asperity contacts, where the former produce negligible wear while the latter lead to significant debris formation.
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Dates et versions

hal-03404670 , version 1 (26-10-2021)

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  • HAL Id : hal-03404670 , version 1

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Stella Brach, Sylvain Collet. Criterion for critical junctions in elastic-plastic adhesive wear. Physical Review Letters, In press. ⟨hal-03404670⟩
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