Abstract This paper extends a moving screw dislocation theory in a conventional crystal to a one-dimensional hexagonal quasicrystal in the framework of the Landau theory. By introducing two functions $\varphi$ and $\psi$ which satisfy wave equations, respectively, a general solution is suggested in terms of $\varphi$ and $\psi$. The analytical expressions for displacement and stress fields induced by a moving screw dislocation as well as the energy are found. The results obtained here when imposing the condition that the phason fields is absent reduce to those for a moving screw dislocation in a crystal.
Received: 29 September 1998
Revised: 14 January 1999
Accepted manuscript online:
(Elasticity and anelasticity, stress-strain relations)
Fund: Project supported by the Doctoral Program Foundation of Institution of Higher Education of China.
Cite this article:
Fan Tian-you (范天佑), Li Xian-fang (李显方), Sun Ying-fei (孙应飞) A MOVING SCREW DISLOCATION IN A ONE-DIMENSIONAL HEXAGONAL QUASICRYSTAL 1999 Acta Physica Sinica (Overseas Edition) 8 288
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