A study on the wear of silicon nitride in rolling–sliding contact

Modeling hydrogen diffusion in a tribological scenario: A failure analysis of a thrust bearing

“…Despite being computationally intensive, an accurate depiction of the triaxial stress state, required for the diffusion analysis, can only be obtained from a three-dimensional model. This presented a challenge in modelling the rigid body motion of the roller (i.e., rolling contact), which becomes unrealistic to solve in a Lagrangian perspective and not possible in an Eulerian-Lagrangian analysis (as described in a previous study [42]), due to the fact that the latter does not couple the mechanical and thermal (in our case diffusion) solutions. This conflict was resolved by neglecting friction (the measured coefficient of friction (COF) was µ=0.005, refer to Section 5.2) between the roller and the raceways and by modeling a roller rotating five times about its own axis, and hence, it was sufficient to model a small segment of the rings.…”

Lifetime prediction of ceramic components – A case study on hybrid rolling contact

“…Rigid body rotations were subsequently described using a moving reference frame, wherein an Eulerian approach was adopted, by which the material is transported through the mesh. Details related to this modeling technique can be found elsewhere [32].…”

Effect of the humidity on the friction and wear characteristics of Si3N4–hBN composite ceramics

“…1–3 Consequently, clarification of the wear behavior of Si 3 N 4 ceramic materials has received much attention over the last three decades. 4–7 A major challenge of Si 3 N 4 ceramics is to develop reproducible, long life, and self-lubricating ceramics for application in severe environments involving high temperature, high load, and high velocity.…”