Glaciers and Ice Friction
Glaciers are comprised of snow accumulated over many years and compressed into...Read More »
Adhesive Wear Analyzed
The effects of surface wear reaches across many industries including production, manufacturing, engineering, transportation, roads, and machinery, to name only a few. Given its wide reaching tentacles, it can be surprising to realize that surface wear is still not completely understood.
Numerical analysis of adhesion of rough surfaces shows that there exist one unique parameter determining whether the surface is sticky or not.
By M.Ciavarella, A. Papangelo. Politecnico di BARI, Italy.
Adhesion for ‘‘soft’’ bodies shows instabilities like in the...Read More »
In this article, a calculation of contact pressure in a rough contact is discussed. The calculation is done using a Tribology Simulator software, which is available for download here (its free to use). The simulator uses a Boundary Element Method (BEM) with Fast Fourier Transform...Read More »
The Contact-Mechanics Challenge completed
In late 2015 we posed the Contact-Mechanics Challenge. This has now been completed and the winner...Read More »
Models for the stress-activated growth of tribofilms from ZDDP were modified to include wear.
TWO RECENT CUTTING EDGE ARTICLES reported on work that showed the growth rates of tribofilms from ZDDP were accelerated by contact stress1 or interfacial shear2 under conditions in which the temperature rise caused by rubbing was negligible....Read More »
Engineering surfaces are heterogeneous and can be slippery or sticky locally depending on surface roughness and chemistry. The variation...Read More »
The most famous equation to predict wear known probably to everyone working in the field of tribology is
Carbon-based nanomaterials, coatings and films attracted a great attention due to proved possibility to achieve lowest friction and wear...Read More »
Friction is a result of complex interaction of physical, chemical and mechanical forces at the sliding interface. Due to...Read More »
In order to improve wear resistance of the surfaces operating in harsh conditions, along with base oils additives are...Read More »
When the conditions in the tribosystem are such that the lubricant is not capable of carrying any significant part...Read More »
When the bodies slide against each other, the classic Amonton’s law states that the friction force is directly proportional...Read More »
Society of tribology and lubrication engineers announced Contact Mechanics Challenge. Dr. Martin Müser initiated a competition in calculation of a real contact area. He has already results of his own calculation and challenges other groups to join and compare the results. As an outcome, there will be a paper discussing...Read More »