Publication detail
Evaluation of constitutive relations for high strain rate behaviour using the Taylor test
BUCHAR, J. FOREJT, M. JOPEK, M.
English title
Evaluation of constitutive relations for high strain rate behaviour using the Taylor test
Type
journal article - other
Language
en
Original abstract
Taylor test have been performed on specimens of ten metallic materials. The different one-dimensional models have been used. In the next step the finite element code LS DYNA has been used in order to deduce the parameters in the Johnson-Cook constitutive equations. Using of the mutual comparison of the computed specimen profile with experimental one led to the explanation of the influence of the parameters mentioned above on the deformation behaviour determined by the computation. This procedure also made possible to choose the constitutive equation which represents the optimum estimation of material behaviour at high strain rates.
English abstract
Taylor test have been performed on specimens of ten metallic materials. The different one-dimensional models have been used. In the next step the finite element code LS DYNA has been used in order to deduce the parameters in the Johnson-Cook constitutive equations. Using of the mutual comparison of the computed specimen profile with experimental one led to the explanation of the influence of the parameters mentioned above on the deformation behaviour determined by the computation. This procedure also made possible to choose the constitutive equation which represents the optimum estimation of material behaviour at high strain rates.
Keywords in English
Taylor test, constitutive relations, high strain rate,
RIV year
2000
Released
01.10.2000
Volume
10
Number
9
Pages count
6
BIBTEX
@article{BUT39210,
author="Jaroslav {Buchar} and Milan {Forejt} and Miroslav {Jopek},
title="Evaluation of constitutive relations for high strain rate behaviour using the Taylor test",
year="2000",
volume="10",
number="9",
month="October"
}