A slider-slab sliding model for hard-to-soft and soft-to-soft sliding systems with abrasive and non-abrasive wear conditions is used to investigate atomic-scale friction. The molecular dynamics simulation uses the Morse potential to calculate interatomic forces between atoms. Separation distance between the slider and the slab is changed to simulate repulsive and attractive interactive force fi...

Over the past 25 years, natural resources have been used up quickly, causing significant damage and contamination to planet which is earth. Tribology, a new technology for keeping power parts running, supported extremely fast efficient coal oil-powered machinery throughout history. Many different kinds of resource reserves, like those parts, will be gone in century. Revolutionary zero-emission ...

It is our great honor to publish this special issue in Tribology Online. This includes the papers accepted after a rigorous peer review process.

The tribology of 2-methacryloyloxyethyl phosphorylcholine monolayers in water is studied using molecular dynamics simulations. Our results show two distinct shear regimes where the first is dominated by hydration lubrication, exhibiting near zero friction coefficients, and the second by chain-chain interactions, resembling monomer-supported lubrication. These results provide insight into the hy...

Noshir S. Pesika, Nick Gravish, Matt Wilkinson, Boxin Zhao, Hongbo Zeng, Yu Tian, Jacob Israelachvili, and Kellar Autumn Chemical and Biomolecular Engineering Department, Tulane University, LA, USA Department of Biology, Lewis and Clark College, Portland, OR, USA Chemical Engineering Department, University of Waterloo, Ontario, Canada Chemical Engineering Department, University of California, S...

Many engineering fields, including tribology and MEMS, seek to use or alter the behavior of the system at the surface or at the interface between surfaces. Thus, the topography of the surface is of great interest and must be included in finite element simulations. Four methods for generating normally distributed rough surfaces using APDL are proposed. The resulting geometry, meshes, and solutio...