Third M.I.T. Conference on Computational Fluid and Solid Mechanics June 14–17, 2005  

Dynamic coupling between phonon and phason dynamic modes in quasiperiodic alloys

M. Geia,*, P.M. Marianob
aDipartimento di Ingegneria Meccanica e Strutturale, Università di Trento, Trento, Italy bDipartimento di Ingegneria Strutturale e Geotecnica, Università di Roma 'La Sapienza' Rome, Italy
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ABSTRACT
The dynamic transfer of energy between phonon and phason modes in icosahedral quasicrystals is investigated, taking into account uncertainties in the value of phonon-phason coupling coefficient.

Keywords:  Quasicrystals; Multifield theories; Random waves
* Corresponding author. Tel.: +39 0461 882583; Fax: +39 0461 882599; E-mail: mgei@ing.unitn.it