Abstract
The structure of interest consists of a nanometer thin copper coating, resting on a stiffer substrate. The elastic and plastic properties of the coating are investigated for three crystallographic orientations and two coating thicknesses using nanoindentation simulated by molecular dynamics. The force-displacement curve, the atomic rearrangement, the stresses and the lattice disorder are monitored during indentation to determine and describe the occurrence and formation of pop-ins and pop-outs during loading. It was found that the crystallographic orientation strongly influenced both the stiffness, load for pop-in formation, the resulting deformation and the stress beneath the indenter. (C) 2015 Elsevier Ltd. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 143-152 |
| Journal | Engineering Fracture Mechanics |
| Volume | 150 |
| DOIs | |
| Publication status | Published - 2015 |
Subject classification (UKÄ)
- Applied Mechanics
Free keywords
- Nanoindentation
- Molecular dynamics
- Thin coating