High-strain-rate plastic flow studied via nonequilibrium molecular dynamics

Journal Article · Mon Jun 28 04:00:00 EDT 1982 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.48.1818· OSTI ID:5013391

Hoover, W G; Ladd, A J.C.; Moran, B

Recent experiments at strain rates reaching 0.1 GHz suggest a power-law dependence of solid-phase shear stress on strain rate. Novel nonequilibrium molecular dynamics simulations of plastic flow have been carried out. These steady-state isothermal calculations appear to be consistent with the present-day experimental data and suggest that the flows of metals can be described by a single physical mechanism over a range of strain rates from 10 kHz to 1 THz.

• Research Organization: Department of Applied Science, University of California at Davis, Davis, California 95616
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5013391
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 48:26; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

656000* -- Condensed Matter Physics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CORRELATIONS
CRYSTALS
DATA
DIFFERENTIAL EQUATIONS
DYNAMICS
EQUATIONS
EQUATIONS OF MOTION
EXPERIMENTAL DATA
FREQUENCY RANGE
GHZ RANGE
GHZ RANGE 01-100
INFORMATION
ISOTHERMAL PROCESSES
MECHANICAL PROPERTIES
MECHANICS
MOLECULES
NUMERICAL DATA
PARTIAL DIFFERENTIAL EQUATIONS
PLASTICITY
SHEAR
SIMULATION
STEADY-STATE CONDITIONS