This quantity includes forty four papers provided on the 3rd touch Mechanics overseas Symposium (CMIS 2001) held in Praia da Consola9ao, Peniche (portugal), June 17-21,2001. This Symposium was once the direct continuation of the 1st CMIS held in Lausanne (1992) and in Carry-Le-Rouet (1994). different comparable conferences, in what matters medical issues and contributors, came about within the nineties at l. a. Grande Motte (1990), Vadstena (1996), Ferrara (1997), Munich (1998) and Grenoble (1999). The Symposium geared toward accumulating researchers with pursuits in a variety of issues in theoretical, computational and experimental touch mechanics. the decision for papers pointed out issues in tribology, mathematical formulations and research, numerical equipment in non-smooth mechanics, effect difficulties, instabilities and technological difficulties. the complete variety of individuals was once 102, from Universities and study Institutes of nineteen nations. The medical Committee reviewed 102 submitted abstracts, and the ultimate software consisted of 6 major lectures, forty three oral communications and 36 poster shows (see Appendix A). The papers during this e-book correspond to just about all of the major lectures and oral communications, and they're assembled in five chapters: • Dynamics and influence • Instabilities, Oscillations and Waves • touch types, effects and functions • Mathematical research • Numerical tools. We thank all of the authors for his or her priceless contributions to this quantity. we're indebted to the participants of the clinical Committee for his or her assist in refereeing the submitted abstracts and manuscripts. We additionally thank the sequence editor, Prof. Graham Gladwell, for his suggestions within the revision process.