Size effects on tension properties of silver nanorod

作者：Chen Li^*; Liu Heng; Yu Lie

来源：Journal of Xi'an Jiaotong University, 2006, 40(1): 101-105.

• Nanorod
• Size effects

The mechanical characteristics of silver nanorod subjected to [001] uniaxial tensile strain are simulated with molecular dynamics. The tension properties of nanorod are similar to that of macroscopic material. The stress increases linearly as strain grows within the process of elastic deformation, and the dislocations and slips of structure lead to a stress oscillation during the process of plastic elongation. The influences of size effects are investigated simultaneously. Young's modulus heightens and the elastic ultimate stress decreases with the increasing global size of nanorod. Both of them approach to that of macroscopic material as the global size increases, and Young's modulus is enhanced with the reducing unidirectional size, e.g., the height of nanorod, while the elastic ultimate stress increases slightly. Thus the increment of unidirectional size is unable to show that the tension properties coincide with those of macroscopic material.

• 出版日期2006