Distribution of dislocations in twisted bars

An asymptotically exact continuum dislocation theory of single crystal bars under torsion is proposed. The dislocation distribution minimizing energy of the bar with zero torque is shown to be uniform. If the applied torque is non-zero, the minimizer exhibits a dislocation-free zone at the outer rin...

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Veröffentlicht in:	International journal of plasticity 2016-08, Vol.83, p.110-125
Hauptverfasser:	Le, K.C., Piao, Y.
Format:	Artikel
Sprache:	eng
Schlagworte:	A. Dislocations A. Yield condition Asymptotic properties B. Beams and columns Bars C. Asymptotic analysis C. Variational calculus Cross sections Dislocations Stress concentration Stress distribution Torque Torsion
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