I belong to the "Loughborough waves group" whose permanent members include Chris Linton, Maureen McIver and Ian Thompson. Other collaborators and/or people with related research interests include the following.
Nick Biggs at the University of Reading
Pete Chamberlain at the University of Reading
Martin Greenhow at Brunel University
Nick Kuznetsov at the Institute of Problems in Mechanical Engineering, St Petersburg
Paul Martin at the Colorado School of Mines
Mike Meylan at the University of Newcastle, Australia
Oleg Motygin at the Institute of Problems in Mechanical Engineering, St Petersburg
Nick Newman at the Massachusetts Institute of Technology
Diki Porter at the University of Bristol
Tony Rawlins at Brunel University
Mike Simon at the University of Manchester