THE POWER SPECTRUM ASSOCIATED WITH A KINK CHAIN OSCILLATING IN A NON-STOKESIAN ATMOSPHERE OF PARAELASTIC INTERSTITIALS

Date

1994-09-01

Author

OGURTANI, T
GUNGOR, R

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The power spectrum of a built-in kink chain oscillating in an atmosphere of paraelastic interstitials was investigated numerically using a fast Fourier transform technique. Above a sharply defined value of the strain amplitude, odd-harmonic generation is observed only at the low-temperature side of the dislocation relaxation peak associated with interstitial-kink interaction. At moderately high strain amplitudes, a strong enhancement of the harmonics situated in the immediate vicinity of the natural resonance frequency of the chain and complete depression of the rest are clearly seen. Finally, the onset of quasi-chaotic kink oscillations is detected when the system is driven into the super-Snoek regime where atmospheric tearing takes place.

Subject Keywords

Mechanical Engineering, Materials Chemistry, Mechanics of Materials, Metals and Alloys

URI

https://hdl.handle.net/11511/65674

Journal

JOURNAL OF ALLOYS AND COMPOUNDS

DOI

https://doi.org/10.1016/0925-8388(94)90467-7

Collections

Department of Metallurgical and Materials Engineering, Article

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Citation Formats

T. OGURTANI and R. GUNGOR, “THE POWER SPECTRUM ASSOCIATED WITH A KINK CHAIN OSCILLATING IN A NON-STOKESIAN ATMOSPHERE OF PARAELASTIC INTERSTITIALS,” JOURNAL OF ALLOYS AND COMPOUNDS, pp. 140–143, 1994, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65674.