Is dislocation flow turbulent in deformed crystals?
Woosong Choi, Yong S. Chen, Stefanos Papanikolaou, James P. Sethna
TL;DR
This paper explores the analogy between dislocation flow in deformed crystals and turbulence in fluids, providing explanations for experimental observations and predicting fractal dislocation patterns, while highlighting similar challenges faced in turbulence studies.
Contribution
It introduces a model linking crystal plastic deformation to turbulence phenomena, offering new insights and predictions about dislocation pattern formation.
Findings
Explains experimental results in crystal deformation
Predicts fractal dislocation patterns
Draws parallels between dislocation flow and turbulence
Abstract
Intriguing analogies were found between a model of plastic deformation in crystals and turbulence in fluids. A study of this model provides remarkable explanations of known experiments and predicts fractal dislocation pattern formation. Further, the challenges encountered resemble those in turbulence, which is exemplified in a comparison with the Rayleigh-Taylor instability.
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