Abstract
Atomic disorder near grain boundary influences property of material. In this study, stress and elastic coefficient near the Σ5 tilt grain boundary in alminium are analyzed by molecular statics simulation based on the Effective Medium Theory (EMT). Local stress and elastic coefficient within the range of 7Å from boundary differ from those in grain, though the averaged elastic coefficient in this range is almost the same as that of single crystal. The grain boundary consists of two kinds of atomic layers where elastic coefficient is different.
