Atomistic simulations of shock induced microstructural evolution and spallation in single crystal nickel

S. G. Srinivasan*, M. I. Baskes, G. J. Wagner

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

54 Scopus citations

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 languageEnglish (US)
Article number043504
JournalJournal of Applied Physics
Volume101
Issue number4
DOIs
StatePublished - Mar 12 2007

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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