| Numéro |
J. Phys. Colloques
Volume 46, Numéro C10, Décembre 1985
Eighth International Conference on Internal Friction and Ultrasonic Attenuation in Solids
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| Page(s) | C10-155 - C10-158 | |
| DOI | https://doi.org/10.1051/jphyscol:19851035 | |
Eighth International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. Colloques 46 (1985) C10-155-C10-158
DOI: 10.1051/jphyscol:19851035
Institut für Allgemine Metallkunde und Metallphysik, Techn. Hochschule, D-5100 Aachen, F.R.G.
J. Phys. Colloques 46 (1985) C10-155-C10-158
DOI: 10.1051/jphyscol:19851035
EQUATION OF MOTION OF A SCREW DISLOCATION IN A VISCO-ELASTIC CONTINUUM
J. SCHLIPFInstitut für Allgemine Metallkunde und Metallphysik, Techn. Hochschule, D-5100 Aachen, F.R.G.
Abstract
Starting from a Lagrangean formalism for a liner visco-elastic continuum the dissipative forces are eliminated by an appropriate transformation. The equation of motion is then obtained by variation of the action integral in terms of Green's functions. The result can be expressed as astring equation with a damping term. The contribution of the shear viscicity to the damping constant is calculated on the basis of a Grüneisen constant for shear. Effective mass and line tension are also given.