Abstract
This paper addresses coating fracture in hard brittle coatings subjected to combined normal and tangential loads through a finite element based methodology. The coating is modelled as an elastic layer perfectly bonded to an elastic substrate with a pre-microcrack, assumed to initiate at the contact trailing edge due to high tensile stress. The predicted results are consistent with previously published coating fracture results. The model predicts a significant effect of coating thickness on crack propagation for coatings with large elastic mismatch and the final propagated crack profile is predicted to depend on friction coefficient, coating fracture toughness and sliding displacement. (C) 2012 Elsevier Ltd. All rights reserved.
| Original language | English (Ireland) |
|---|---|
| Pages (from-to) | 29-39 |
| Number of pages | 11 |
| Journal | Tribology International |
| Volume | 58 |
| DOIs | |
| Publication status | Published - 1 Feb 2013 |
Keywords
- Brittle fracture
- Coating
- Finite element model
Authors (Note for portal: view the doc link for the full list of authors)
- Authors
- Tobi, ALM,Shipway, PH,Leen, SB