Prof. David Nowell was a University Lecturer at Oxford and an Official Student of Christ Church between 1988 and 2017. In 2017 he moved to Imperial College London to take up the Chair in Machine Dynamics, together with the Directorship of the Rolls-Royce University Technology Centre in Vibrations. He is interested in a wide range of topics in solid mechanics and materials engineering, including contact mechanics, fatigue, impact, and residual stress. Prof. Nowell is editor of the Journal of Strain Analysis and is also on the editorial boards of the International Journal of Fatigue and of the journal Strain. He has been an author or co-author for over 200 conference papers or journal articles since 1986 and has also been a co-author of two books; 'Mechanics of Elastic Contacts', D.A. Hills, D. Nowell, A. Sackfield, Butterworth-Heinemann, 1993 and 'Mechanics of Fretting Fatigue, D.A. Hills and D. Nowell, Kluwer, 1994.