Publication detail
Relations between structure of material, strain rate and numerical simulations
FOREJT, M. KREJČÍ, J. JOPEK, M. BUCHAR, J.
English title
Relations between structure of material, strain rate and numerical simulations
Type
Paper in proceedings (conference paper)
Language
en
Original abstract
The paper presents some problems posed by material models of high strain rate deformation in the form of constitutive equations. Parameters of constitutive equations are identified with sufficient accuracy by the TAT (Taylor anvil test) methods. These test performed on miscellaneous materials show one common anomaly. The numerical simulations of resulting speciment shape by the LS DYNA 3D, using Johnson-Cook equation (or other, e.g., Zerilli Armstrong) do not agree with experiment along the entire speciment length. The amount of disagreement depends on impact velocity.
Keywords in English
TAT, constitutive equations, strain rate sensitivity, numerical simulations, deformation, structure
Released
2001-10-25
Publisher
STU Bratislava
Location
Bratislava
ISBN
80-227-1591-3
Book
9th International Scientific Conference CO-MAT-TECH 2001
Pages from–to
64–69
Pages count
6
BIBTEX
@inproceedings{BUT3223,
author="Milan {Forejt} and Jan {Krejčí} and Miroslav {Jopek} and Jaroslav {Buchar}",
title="Relations between structure of material, strain rate and numerical simulations",
booktitle="9th International Scientific Conference CO-MAT-TECH 2001",
year="2001",
number="1.",
pages="64--69",
publisher="STU Bratislava",
address="Bratislava",
isbn="80-227-1591-3",
url="Knihovna FSI VUT v Brně"
}