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Published July 8, 2002 | Version public
Book Section - Chapter Open

Plastic Deformation in Laser-Induced Shock Compression of Monocrystalline Copper

Creators

  • 1. ROR icon University of California, San Diego
  • 2. ROR icon Paris 13 University
  • 3. ROR icon Lawrence Livermore National Laboratory
  • 4. ROR icon University of Oxford
  • 5. ROR icon University of Rochester
  • 6. ROR icon California Institute of Technology

Contributors

Abstract

Copper monocrystals were subjected to shock compression at pressures of 10–60 GPa by a short (3 ns initial) duration laser pulse. Transmission electron microscopy revealed features consistent with previous observations of shock-compressed copper, albeit at pulse durations in the µs regime. The results suggest that the defect structure is generated at the shock front. A mechanism for dislocation generation is presented, providing a realistic prediction of dislocation density as a function of pressure. The threshold stress for deformation twinning in shock compression is calculated from the constitutive equations for slip, twinning, and the Swegle-Grady relationship.

Additional Information

©2002 American Institute of Physics Research supported by the Department of Energy Grants DEFG0398DP00212 and DEFG0300SF2202.

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Eprint ID
3393
Resolver ID
CaltechAUTHORS:MEYaipcp02

Dates

Created
2006-06-05
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Updated
2021-11-08
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Caltech groups
GALCIT
Series Name
American Institute of Physics Conference Proceedings
Series Volume or Issue Number
620