The fragmentation of wires due to pulsed currents: Influence of the skin effect

D. P. Wall; J. E. Allen; S. Molokov; A. Lukyanov

The fragmentation of wires due to pulsed currents: Influence of the skin effect

D. P. Wall, J. E. Allen, S. Molokov, A. Lukyanov

Research output: Contribution to journal › Article › peer-review

Abstract

The influence of the skin effect on the fragmentation of wires due to pulsed currents was studied. It was found that the inclusion of the skin effect leads to a significant qualitative and quantitative effect on the elastodynamic state of a wire subject to a pulse current. It was observed that oscillations occur entirely under tension, while for a uniform current density stresses alternate between compression and tension on the longitudinal time scale. It was suggested that the skin effect increase the tensile τ_zz stresses responsible for wire fragmentation, with the magnitude of these increases being larger the shorter the current risetime.

Original language	English
Pages (from-to)	151-154
Number of pages	4
Journal	IEE Colloquium (Digest)
Issue number	53
Publication status	Published - May 3 2000
Externally published	Yes

All Science Journal Classification (ASJC) codes

Engineering(all)
Electrical and Electronic Engineering

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abstract = "The influence of the skin effect on the fragmentation of wires due to pulsed currents was studied. It was found that the inclusion of the skin effect leads to a significant qualitative and quantitative effect on the elastodynamic state of a wire subject to a pulse current. It was observed that oscillations occur entirely under tension, while for a uniform current density stresses alternate between compression and tension on the longitudinal time scale. It was suggested that the skin effect increase the tensile τzz stresses responsible for wire fragmentation, with the magnitude of these increases being larger the shorter the current risetime.",

author = "Wall, {D. P.} and Allen, {J. E.} and S. Molokov and A. Lukyanov",

year = "2000",

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AU - Wall, D. P.

AU - Allen, J. E.

AU - Molokov, S.

AU - Lukyanov, A.

PY - 2000/5/3

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N2 - The influence of the skin effect on the fragmentation of wires due to pulsed currents was studied. It was found that the inclusion of the skin effect leads to a significant qualitative and quantitative effect on the elastodynamic state of a wire subject to a pulse current. It was observed that oscillations occur entirely under tension, while for a uniform current density stresses alternate between compression and tension on the longitudinal time scale. It was suggested that the skin effect increase the tensile τzz stresses responsible for wire fragmentation, with the magnitude of these increases being larger the shorter the current risetime.

AB - The influence of the skin effect on the fragmentation of wires due to pulsed currents was studied. It was found that the inclusion of the skin effect leads to a significant qualitative and quantitative effect on the elastodynamic state of a wire subject to a pulse current. It was observed that oscillations occur entirely under tension, while for a uniform current density stresses alternate between compression and tension on the longitudinal time scale. It was suggested that the skin effect increase the tensile τzz stresses responsible for wire fragmentation, with the magnitude of these increases being larger the shorter the current risetime.

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