Frictionless Motion of Lattice Defects

N. Gorbushin, G. Mishuris, L. Truskinovsky

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

94 Wedi eu Llwytho i Lawr (Pure)

Crynodeb

Energy dissipation by fast crystalline defects takes place mainly through the resonant interaction of their cores with periodic lattice. We show that the resultant effective friction can be reduced to zero by appropriately tuned acoustic sources located on the boundary of the body. To illustrate the general idea, we consider three prototypical models describing the main types of strongly discrete defects: dislocations, cracks, and domain walls. The obtained control protocols, ensuring dissipation-free mobility of topological defects, can also be used in the design of metamaterial systems aimed at transmitting mechanical information.
Iaith wreiddiolSaesneg
Rhif yr erthygl195502
CyfnodolynPhysical Review Letters
Cyfrol125
Rhif cyhoeddi19
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 02 Tach 2020

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