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Contact Mechanics Perspective of Tribology


In the last few decades, contact mechanics expanded to qualitatively new fields of application which are at the forefront of the global development tendencies of technology and society, in particular micro- and nanotechnology as well as biology and medicine. Vital numerical tools for simulating complex contacts were created, such as the FFT-based boundary element method.
The main conceptual idea behind this free e-book was to show to what extent one can understand tribology with macroscopic contact mechanics.
The book is a comprehensive overview of recent developments in
the areas of contact mechanics and friction with contributions from renowned experts all over the world such as Jim Greenwood and James Barber, Martin Müser and Q. Jane Wang, Jianbin Luo and Jacqueline Krim, Ken Nakano and Izhak Etsion and many others. 

Prof. Valentin Popov turning 60


In 2019, the head of our department, Prof. Valentin Popov is 60 years old. To this anniversary, members of the department have published a special issue of the international journal "Facta Universitatis, Series Mechancal Engineering". The entire issue can be downloaded here.
In addition, a celebratory reception took place during the International Workshop "Contact Mechanics and Friction: Foundations and Applications": photo gallery and video of the reception.



Friction and Wear: From Elementary Mechanisms to Macroscopic Behavior


This free e-book is an intriguing attempt by world wide renowned scientists to bring together micro- and macro tribology. Individual contributions are by Jacqueline Krim, Jianbin Luo, Martin Müser, Martin Dienwiebel, Michael Moseler, Ken Nakano and others.

It is opened by a review "Controlling Friction With External Electric or Magnetic Fields: 25 Examples" by Jacqueline Krim. The review presents 25 examples of active control of friction from recent literature thus reminding us of the huge complexity of tribological phenomena. At the same time, it clearly shows that they can be understood and well controlled.

One of the most fundamental concepts discovered and analyzed in the last 25 years is the concept of superlubricity. In their paper "Macroscale Superlubricity Achieved With Various Liquid Molecules: A Review" Xiangyu Ge, Jinjin Li and Jianbin Luo discuss the advancements in liquid superlubricity at the macroscale.

Martin Müser combines the fundamental understanding of structural superlubricity with the advances of the contact mechanics of rough surfaces. He successfully links the scales and answers the question “Are There Limits to Superlubricity of Graphene in Hard, Rough Contacts?”

The experimental work "Investigation on Dynamic Response of Rubber in Frictional Contact" by Ken Nakano et. al. is a true puzzle showing that the sliding rubber contact reacts to oscillations as if it were sticking! Altogether, there are 10 Papers by world-renowned scientists in this collection.


Further development of the Flying V


On June 2, 2019, it was announced that the Flying V aircraft configuration of Justus Benad, an employee of the "Departement of System Dynamics and Friction Physics", will be further developed at TU Delft in a cooperation with KLM. This caused a lot of international media interest. more


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