18 citations · 23 across the 7 of their papers we have counts for
7 papers
Cylinder-flat contact mechanics with surface roughness
A. Tiwari, B. N. J. Persson
We study the nominal (ensemble averaged) contact pressure acting on a cylinder squeezed in contact with an elastic half-space with random surface roughness. The contact pres…
Fluid leakage in metallic seals
F. J. Fischer, K. Schmitz, A. Tiwari +1
Metallic seals are crucial machine elements in many important applications, e.g., in ultrahigh vacuum systems. Due to the high elastic modulus of metals, and the surface roughness…
Plastic deformation of rough metallic surfaces
A. Tiwari, A. Almqvist, B. N. J. Persson
We present experimental and theoretical results for the surface topography of a plastically deformed metallic (aluminum) block. When a hard spherical body (here a steel-, silica gl…
Dependency of Sliding Friction for Two Dimensional Systems on Electronegativity
Jianjun Wang, Avinash Tiwari, Yang Huang +2
We study the role of electronegativity in sliding friction for five different two dimensional (2D) monolayer systems using density functional theory (DFT) with van der Waals (vdW)…
On the origin of sliding friction: Role of lattice trapping
J. Wang, A. Tiwari, I. M. Sivebaek +1
Using molecular dynamics we study the dependence of the friction force on the sliding speed when an elastic slab (block) is sliding on a rigid substrate with a …
Theory for diffusive and ballistic air leakage and its application to suction cups
A. Tiwari, B. N. J. Persson
We have developed a theory of air leakage at interfaces between two elastic solids with application to suction cups in contact with randomly rough surfaces. We present an equation…