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Inertial effects on dislocation damping under cyclic loading with ultra-high frequencies

Walcker, Astrid / Weygand, D. / Kraft, O.

The frequency-dependent mechanical loss occurring at the oscillation of a single dislocation under an applied cyclic stress with frequencies in the MHz-GHz range is investigated by a discrete dislocation dynamics simulation and by analytical treatment. With the help of an analytical solution, an influence parameter for the occurrence of inertial effects is derived.

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Inertial effects on dislocation damping under cyclic loading with ultra-high frequencies

Walcker, Astrid / Weygand, D. / Kraft, O.

The frequency-dependent mechanical loss occurring at the oscillation of a single dislocation under an applied cyclic stress with frequencies in the MHz-GHz range is investigated by a discrete dislocation dynamics simulation and by analytical treatment. With the help of an analytical solution, an influence parameter for the occurrence of inertial effects is derived.

Inertial effects on dislocation damping under cyclic loading with ultra-high frequencies

Walcker, Astrid / Weygand, D. / Kraft, O.

The frequency-dependent mechanical loss occurring at the oscillation of a single dislocation under an applied cyclic stress with frequencies in the MHz-GHz range is investigated by a discrete dislocation dynamics simulation and by analytical treatment. With the help of an analytical solution, an influence parameter for the occurrence of inertial effects is derived.

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Title:

Inertial effects on dislocation damping under cyclic loading with ultra-high frequencies

Contributors:

Walcker, Astrid (author) / Weygand, D. (author) / Kraft, O. (author)

Published in:

Materials Science and Engineering, Part A (Structural Materials: Properties, Microstructure and Processing) ; 400-401 ; 397-400

Publication date:

2005

Size:

4 Seiten, 5 Quellen

ISSN:

DOI:

https://doi.org/10.1016/j.msea.2005.03.060

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Kristallversetzung , Wechsellastbeanspruchung , Spannungsanalyse , Parameterschätzung , zyklische Belastung , Frequenzabhängigkeit , Molekulardynamik , Versetzungsvernichtung

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