skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Dynamic Strength of Metals in Shock Deformation

Abstract

It is shown that the Hugoniot and the critical shear stress required to deform a metal plastically in shock compression can be obtained directly from molecular dynamics simulations without recourse to surface velocity profiles, or to details of the dislocation evolution. Specific calculations are shown for aluminum shocked along the [100] direction, and containing an initial distribution of microscopic defects. The presence of such defects has a minor effect on the Hugoniot and on the dynamic strength at high pressures. Computed results agree with experimental data.

Authors:
; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
888588
Report Number(s):
UCRL-JRNL-217211
Journal ID: ISSN 0003-6951; APPLAB; TRN: US200618%%428
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 88; Journal Issue: 23
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM; COMPRESSION; DEFECTS; DEFORMATION; DISLOCATIONS; DISTRIBUTION; SHEAR; VELOCITY

Citation Formats

Kubota, A, Reisman, D B, and Wolfer, W G. Dynamic Strength of Metals in Shock Deformation. United States: N. p., 2005. Web.
Kubota, A, Reisman, D B, & Wolfer, W G. Dynamic Strength of Metals in Shock Deformation. United States.
Kubota, A, Reisman, D B, and Wolfer, W G. Wed . "Dynamic Strength of Metals in Shock Deformation". United States. doi:. https://www.osti.gov/servlets/purl/888588.
@article{osti_888588,
title = {Dynamic Strength of Metals in Shock Deformation},
author = {Kubota, A and Reisman, D B and Wolfer, W G},
abstractNote = {It is shown that the Hugoniot and the critical shear stress required to deform a metal plastically in shock compression can be obtained directly from molecular dynamics simulations without recourse to surface velocity profiles, or to details of the dislocation evolution. Specific calculations are shown for aluminum shocked along the [100] direction, and containing an initial distribution of microscopic defects. The presence of such defects has a minor effect on the Hugoniot and on the dynamic strength at high pressures. Computed results agree with experimental data.},
doi = {},
journal = {Applied Physics Letters},
number = 23,
volume = 88,
place = {United States},
year = {Wed Nov 09 00:00:00 EST 2005},
month = {Wed Nov 09 00:00:00 EST 2005}
}