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

Title: Micromechanical strength effects in shock compression of solids

Abstract

Time-resolved shock-wave measurements and post-shock recovery have long been used for inferring the underlaying micromechanics controlling high-rate deformation of solids; this requires considerable subjective interpretation. In spite of this, progress has been made in experimentation and theoretical interpretation of the shock-compression/release cycle and some of the results are reviewed here for weak shocks. This cycle involves the elements of the elastic precursor, plastic loading wave, pulse duration, release wave, and post-mortem examination. Those topics are examined, with emphasis on the second and fourth elements. Cu and Ta results show how shock data can be used to determine the transition from deformation mechanism of thermal activation to that of dislocation drag. Release-wave studies indicate that the leading observable release disturbance in fcc metals may not be propagating with the ideal longitudinal elastic-wave speed. 5 figs, 18 refs.

Authors:
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
6544097
Report Number(s):
LA-UR-93-1670; CONF-9306167-4
ON: DE93014425
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: Joint AIRAPT/APS meeting, Colorado Springs, CO (United States), 28 Jun - 3 Jul 1993
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; SHOCK WAVES; SOLIDS; COMPRESSION; COPPER; DEFORMATION; IMPACT SHOCK; TANTALUM; ELEMENTS; METALS; TRANSITION ELEMENTS; 360103* - Metals & Alloys- Mechanical Properties

Citation Formats

Johnson, J N. Micromechanical strength effects in shock compression of solids. United States: N. p., 1993. Web.
Johnson, J N. Micromechanical strength effects in shock compression of solids. United States.
Johnson, J N. Fri . "Micromechanical strength effects in shock compression of solids". United States. https://www.osti.gov/servlets/purl/6544097.
@article{osti_6544097,
title = {Micromechanical strength effects in shock compression of solids},
author = {Johnson, J N},
abstractNote = {Time-resolved shock-wave measurements and post-shock recovery have long been used for inferring the underlaying micromechanics controlling high-rate deformation of solids; this requires considerable subjective interpretation. In spite of this, progress has been made in experimentation and theoretical interpretation of the shock-compression/release cycle and some of the results are reviewed here for weak shocks. This cycle involves the elements of the elastic precursor, plastic loading wave, pulse duration, release wave, and post-mortem examination. Those topics are examined, with emphasis on the second and fourth elements. Cu and Ta results show how shock data can be used to determine the transition from deformation mechanism of thermal activation to that of dislocation drag. Release-wave studies indicate that the leading observable release disturbance in fcc metals may not be propagating with the ideal longitudinal elastic-wave speed. 5 figs, 18 refs.},
doi = {},
url = {https://www.osti.gov/biblio/6544097}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: