Using the Stroh formalism, we derive explicit expressions for the net
interaction force between two skewed line dislocations separated by a distance
in an
infinite anisotropic quasicrystalline space or half-space with a traction-free surface.
The net interaction force of one dislocation exerted on the other is found to be
independent of the separation distance and also independent of the second
components of the two six-dimensional (6D) Burgers vectors. In addition, we find
that the net interaction force is zero when the single nonzero component of one 6D
Burgers vector is just the second component of this 6D Burgers vector. The net
interaction force can be directly determined from the elastic constants of the
anisotropic quasicrystalline material without requiring the solution of the Stroh
eigenvalue problem.
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