Yang Wang, Jingxiang Xu, Yusuke Ootani, Nobuki Ozawa, Koshi Adachi, and Momoji Kubo
Online publication date
December 7, 2020
Press release online (in Japanese)
Comparison of wear amount of diamond-like carbon as a function of applied normal force calculated by our proposed wear law (blue line) and molecular dynamics simulations (black rectangle).
Left and right figures show wear amount of self-affine rough surface and smooth ball-on-disk contact, respectively.
For the rough surface contact, wear amount is proportional to applied normal load, whereas for the smooth ball-on-disk contact, wear amount increases with applied normal load quasi-exponentially. Our proposed wear law qualitatively reproduces the above interesting load dependence of wear obtained by molecular dynamics simulations.