Abstract
Spallation in single crystalline nickel was studied using molecular dynamics simulations. The shock waves-incident waves, the waves reflected from sample free surfaces, and interference between reflected waves-create and destroy many microstructural features. These features, though unimportant in determining the spall strength, control the spall nucleation site. Spall occurs by cavitation at a grain boundary junction in cold, defective, tensile regions of the sample. Atomistic calculations and experiments, though separated by six orders of magnitude in strain rates, follow a universal strain rate behavior.
Original language | English (US) |
---|---|
Article number | 043504 |
Journal | Journal of Applied Physics |
Volume | 101 |
Issue number | 4 |
DOIs | |
State | Published - 2007 |
ASJC Scopus subject areas
- Physics and Astronomy(all)