1 Date of download: 9/29/2017 Copyright © ASME. All rights reserved. From: Elastic-Plastic Contact Between Rough Surfaces: Proposal for a Wear or Running-In Model J. Tribol. 2005;128(2): doi: / Figure Legend: Plastic zone evolution for 2

2 Date of download: 9/29/2017 Copyright © ASME. All rights reserved. From: Elastic-Plastic Contact Between Rough Surfaces: Proposal for a Wear or Running-In Model J. Tribol. 2005;128(2): doi: / Figure Legend: Plastic zone evolution for 12

3 Date of download: 9/29/2017 Copyright © ASME. All rights reserved. From: Elastic-Plastic Contact Between Rough Surfaces: Proposal for a Wear or Running-In Model J. Tribol. 2005;128(2): doi: / Figure Legend: Contact between an initially isotropic rough surface and a smooth one, final surface (worn geometry), after cyclic loading

4 Date of download: 9/29/2017 Copyright © ASME. All rights reserved. From: Elastic-Plastic Contact Between Rough Surfaces: Proposal for a Wear or Running-In Model J. Tribol. 2005;128(2): doi: / Figure Legend: Contact between two initially smooth surfaces, wear profile after cycling loading (13cycles)

5 Date of download: 9/29/2017 Copyright © ASME. All rights reserved. From: Elastic-Plastic Contact Between Rough Surfaces: Proposal for a Wear or Running-In Model J. Tribol. 2005;128(2): doi: / Figure Legend: Proposal of Ludwik suggesting that fracture occurs at a point F, where flow stress and fracture stress versus strain curves intersect (from )

6 Date of download: 9/29/2017 Copyright © ASME. All rights reserved. From: Elastic-Plastic Contact Between Rough Surfaces: Proposal for a Wear or Running-In Model J. Tribol. 2005;128(2): doi: / Figure Legend: Interference ratio w∕wc versus friction coefficient when the plastic zone reaches the surface. The windows indicate the equivalent plastic strain after unloading for different normal loads (interference ratio) and friction coefficients.

7 Date of download: 9/29/2017 Copyright © ASME. All rights reserved. From: Elastic-Plastic Contact Between Rough Surfaces: Proposal for a Wear or Running-In Model J. Tribol. 2005;128(2): doi: / Figure Legend: Equivalent plastic strain versus w∕wc for w∕wc<110

8 Date of download: 9/29/2017 Copyright © ASME. All rights reserved. From: Elastic-Plastic Contact Between Rough Surfaces: Proposal for a Wear or Running-In Model J. Tribol. 2005;128(2): doi: / Figure Legend: Initial profile of the isotropic rough surface