Peer-Reviewed Journal Details
Mandatory Fields
Tobi, ALM,Shipway, PH,Leen, SB
2013
February
Tribology International
Finite element modelling of brittle fracture of thick coatings under normal and tangential loading
Published
WOS: 10 ()
Optional Fields
Brittle fracture Coating Finite element model TRIBOLOGICAL ANALYSIS STRESS DISTRIBUTIONS CONTACT STRESSES FRETTING WEAR BEHAVIOR MECHANISMS PREDICTION SUBSTRATE CYLINDER FAILURE
58
29
39
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.
10.1016/j.triboint.2012.08.024
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