Title :
Strain Evolution in Metal Conductors Subjected to Short-Duration Current Pulses
Author :
Gallo, F. ; Watkins, R. ; Ravi-Chandar, K. ; Satapathy, S.
Author_Institution :
Dept. of Aerosp. Eng. & Eng. Mech., Texas Univ., Austin, TX
Abstract :
The behavior of metallic materials subjected to short-duration heating resulting from the passage of high currents is investigated. Specifically, direct experimental measurements are made of the stress drop and recovery engendered by the application of a 1-ms-long current pulse that raises the temperature of the specimen to about 450 K. The experimental results are used to calibrate an adiabatic viscoplastic model describing the material behavior
Keywords :
conductors (electric); electromechanical effects; heating; metals; stress analysis; viscoplasticity; adiabatic viscoplastic model; metal conductors; short-duration current pulses; strain evolution; stress drop; stress recovery; Capacitive sensors; Conducting materials; Conductors; Current measurement; Electrons; Plastics; Pulse measurements; Stress; Temperature; Thermal loading; Adiabatic viscoplastic; strain evolution;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.887698
