The equation of motion for a curved dislocation moving at high velocities in a slip plane is solved for a dislocation half-mill. It is found that the angular velocity of a dislocation half-mill about the pinning point is constant for constant stress. The solution is applied to a Frank-Read source to give the shape of the nucleating source and the time of activation. For Al, the time of nucleation of a Frank-Read source is about 9 × 10−10 sec when the stress on the source is 5 × 10−4G.
On the Dynamic Behavior of a Frank-Read Source
J. D. Campbell,
J. A. Simmons,
J. D. Campbell
Department of Engineering Science, Oxford University, Oxford, England
J. A. Simmons
Institute of Engineering Research, University of California, Berkeley, Calif.
J. E. Dorn
University of California, Berkeley, Calif.
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Campbell, J. D., Simmons, J. A., and Dorn, J. E. (September 1, 1961). "On the Dynamic Behavior of a Frank-Read Source." ASME. J. Appl. Mech. September 1961; 28(3): 447–453. https://doi.org/10.1115/1.3641726
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