| Issue |
J. Phys. Colloques
Volume 42, Number C5, Octobre 1981
ICIFUAS-7Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids |
|
|---|---|---|
| Page(s) | C5-235 - C5-239 | |
| DOI | https://doi.org/10.1051/jphyscol:1981533 | |
ICIFUAS-7
Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. Colloques 42 (1981) C5-235-C5-239
DOI: 10.1051/jphyscol:1981533
Max-Planck-Institut für Metallforschung, Institut für Physik, F.R.G.
Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. Colloques 42 (1981) C5-235-C5-239
DOI: 10.1051/jphyscol:1981533
UNIFIED THEORY OF DISLOCATION DAMPING WITH A SPECIAL REFERENCE TO POINT-DEFECT DRAGGING
T.Ö. OgurtaniMax-Planck-Institut für Metallforschung, Institut für Physik, F.R.G.
Abstract
The complete mathematical solution of dislocation damping for the equally spaced multi-dragging-point-defect case is investigated by the Laplace-transformation method combined with a variational procedure. It is shown that the dragging leads to an expression which is identical to the exact solution of the Koehler-Granato-Lücke (KGL) model with a modified damping constant. The apparent dissimilarity between the point-defect dragging model of Simpson and Sosin (SS) and the KGL theory is due to the retention of only the first term in the Fourier expansion by KGL and concomitantly the inertial term by SS.