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Title: Analysis of the strain-rate sensitivity at high strain rates in FCC and BCC metals

Abstract

The development of a constitutive model based on the use of internal state variables and phenomenological models describing glide kinetics is reviewed. Application of the model to the deformation of fcc metals and alloys is illustrated, with an emphasis on the behavior at high strain rates. Preliminary results in pure iron and 4340 steel are also presented. Deformation twinning is observed in iron samples deformed in the Hopkinson pressure bar. The influence of twinning on the proposed constitutive is discussed. 11 refs., 8 figs.

Authors:
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
6507729
Report Number(s):
LA-UR-88-4213; CONF-890324-1
ON: DE89005471
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: 4. international conference on mechanical properties of materials at high rates of strain, Oxford, UK, 20 Mar 1989; Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COPPER; STRAIN RATE; METALS; MECHANICAL PROPERTIES; CRYSTAL STRUCTURE; DEFORMATION; MATHEMATICAL MODELS; MICROSTRUCTURE; STRESS ANALYSIS; STRESSES; TWINNING; ELEMENTS; TRANSITION ELEMENTS; 360103* - Metals & Alloys- Mechanical Properties

Citation Formats

Follansbee, P S. Analysis of the strain-rate sensitivity at high strain rates in FCC and BCC metals. United States: N. p., 1988. Web.
Follansbee, P S. Analysis of the strain-rate sensitivity at high strain rates in FCC and BCC metals. United States.
Follansbee, P S. Fri . "Analysis of the strain-rate sensitivity at high strain rates in FCC and BCC metals". United States. https://www.osti.gov/servlets/purl/6507729.
@article{osti_6507729,
title = {Analysis of the strain-rate sensitivity at high strain rates in FCC and BCC metals},
author = {Follansbee, P S},
abstractNote = {The development of a constitutive model based on the use of internal state variables and phenomenological models describing glide kinetics is reviewed. Application of the model to the deformation of fcc metals and alloys is illustrated, with an emphasis on the behavior at high strain rates. Preliminary results in pure iron and 4340 steel are also presented. Deformation twinning is observed in iron samples deformed in the Hopkinson pressure bar. The influence of twinning on the proposed constitutive is discussed. 11 refs., 8 figs.},
doi = {},
url = {https://www.osti.gov/biblio/6507729}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {1}
}

Conference:
Other availability
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