The effect of fluctuations in the generation of shear during one-dimensional lattice compression
Abstract
An attempt is made to explain why a crystal lattice is capable of withstanding a strong plane shock wave where the tangential stresses exceed the theoretical strength of the lattice. It is shown that a uniformly compressed lattice is stable with respect to small displacements of the atoms. Information on the activation energy for the restructuring of a uniformly compressed plane copper lattice is obtained by using a computer simulation. It is shown that lattice restructuring can involve either a shear or an exchange mechanism.
- Publication:
-
Fizika Goreniia i Vzryva
- Pub Date:
- June 1985
- Bibcode:
- 1985FizGV..21..113M
- Keywords:
-
- Compression Loads;
- Crystal Lattices;
- Lattice Vibrations;
- Shear Properties;
- Shock Loads;
- Activation Energy;
- Atomic Structure;
- Compressive Strength;
- Copper Alloys;
- Critical Loading;
- Crystal Dislocations;
- Crystal Structure;
- Point Defects;
- Shock Fronts;
- Solid-State Physics