THE COMPUTER-SIMULATION OF THE PLASTIC-DEFORMATION OF 2D LENNARD-JONES CRYSTALS

The computer simulation of the processes proceeding under intensive me chanical action is carried out for two-dimensional Lennard-Jones cryst als. The time and deformation dependencies of strain tensor, energy an d quantity of structure disruptions is presented for different load in tensities. It is shown that the energy absorbed by the crystal under m acroscopic mechanical action is released in local regions that are sev eral Angstrom-sized. The plastic flow occurs through dividing the init ial structure into regions in which the atomic motion is to be correla ted.