抄録
Face-centered cubic (FCC) Cu nanowire under <111> torsional loading is analyzed by molecular dynamics (MD). Embedded atom method potentials for Cu are used. The temporal evolution of defect structures is observed. The deformation localization mechanism in FCC metals under torsional loading is analyzed. There is localization of arrangement along the direction of torsion axis. We investigate systematically the relation between the defect structures and energy under torsional loading. Energy and twist angle of each atomic layer are investigated in detail. The investigation of energy showed that macroscopic characteristic is plasticity, but in microscopic there are elasticity and plasticity.
