Arnold M. A. van der Heijden is an advisor for HESTOCON, a technical drawing and design company in Breda, Netherlands. He received his Master's and PhD degrees, with honors, in mechanical engineering and applied mechanics under Professor Koiter. He has been a technical and scientific staff member in the Applied Mechanics Lab at Delft University of Technology, an Honorary Research Fellow at Harvard University, a professor at Eindhoven Technical University, a board member of the Department of Applied Mechanics of the Royal Dutch Institute for Engineers, and co-editor (with J. F. Besseling) of the Koiter symposium book Trends in Solid Mechanics. Dr van der Heijden has worked on staff and/or consulted for many corporations including Royal Dutch Shell plc (Pernis and the Hague), CAB Utrecht, with HESTOCON to develop RDW safety approved vehicle bumpers, ABB Lummus Global, and as a project leader of ATEX at General Electric Advanced Materials. He is currently working on improvement safety management for ProRail.