Dislocation pile-ups in periodic internal stresses
- 1 September 1972
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 26 (3), 523-539
- https://doi.org/10.1080/14786437208230102
Abstract
The effect of oscillating internal stresses and of Lomer-Cottrell dislocations on the properties of dislocation pile-ups is investigated by numerical computations. For certain combinations of wavelength and amplitude of the internal stresses a separation of the groups into sub-groups is found. The stabilizing efficiency of oscillating internal stresses and of Lomer-Cottrell dislocations is studied in some detail. The internal stresses of the modified pile-ups are determined and compared with those of ideal pile-ups. The consequences for work-hardening theories based on long-range stresses are discussed.Keywords
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