A thin liquid film subject to a temperature gradient undergoes thermocapillary convection because of the non-uniform surface tension at the free surface. This induced flow perturbs the film free surface and generate a free surface velocity field. These observable consequences can be thought of as the “signature” of the imposed temperature field and this work investigates whether the temperature...

Abstract Macroscale superlubricity is a prospective strategy in modern tribology to dramatically reduce friction and wear of mechanical equipment; however, it mainly studied for point-to-surface contact or special pairs experiments. In this study, robust macroscale point-to-point on steel interface was achieved the first time by using hydroxylated modified boron nitride nanosheets with proton-t...

The life cycle of any drive train is given by the reliability its individual components, e.g., bearings, gears, and their connections. Lubrication as a part prevents wear caused uncontrolled mixed friction. However, lubricants may interfere in load capacity steel due to chemical physical processes. White etching crack (WEC) failures are one most prominent failure mechanisms supposed be related ...

The rheology of concentrated suspensions particles is complex and typically exhibits a shear-thickening behavior in the case repulsive interactions. Despite recent interest arisen, causes remain unclear. Frictional contacts have been able to explain discontinuous shear thickening simulations. However, interparticle friction coefficient considered be constant most simulations theoretical works r...

Deep drawing is a common metal forming process used to manufacture recessed threedimensional parts from flat sheet metals. The research in deep drawing has been generic over the last few decades and various aspects of this process have been investigated. The paper aims to review the following aspects of deep drawing process that affect the quality of the product, tooling life and process design...

Hydroxypropyl methylcellulose (HPMC) is a biopolymer that is biodegradable, environmentally friendly, and bio-friendly. Owing to its unique chemical structure, HPMC can reduce the coefficient of friction (COF) and frictional wear and thus possesses excellent lubrication properties. HPMC has good dissolvability in specific solvents. The present research focuses on the reversible dissolution reac...

We investigate non-Brownian particles suspended in a periodic shear-flow using simulations. Following Metzger and Butler [Phys. Rev. E 82, 051406 (2010)], we show that the chaotic dynamics arising from lubrication interactions are too weak to generate an observable particle dispersion. The irreversibility observed in periodic flow is dominated by contact interactions. Nonetheless, we show that ...