Metal silver in the nanoscale range is widely used in the felds,such as microelectronics,optoelectronics,catalysis etc.,due to its unique electrical and thermal conductivity,especially in nano-electrodes and nano-devices.Tensile deformation behavior of polycrystalline silver nanowires,in various grain size,is simulated using molecular dynamics method.Efect of grain size on elastic modulus,yield strength,and plastic deformation mechanism of polycrystalline silver nanowire is analyzed in detail.Results indica...