Detail publikace
Modelling of ductile fracture for sub-sized three-point-bend geometry
STRATIL, L. HADRABA, H. KOZÁK, V. DLOUHÝ, I.
Anglický název
Modelling of ductile fracture for sub-sized three-point-bend geometry
Typ
Stať ve sborníku v databázi WoS či Scopus
Jazyk
en
Originální abstrakt
The contribution deals with the simulation of R-curve using complete Gurson model of ductile fracture. The R-curve was experimentally determined for a Eurofer97 steel on sub-sized three-point-bend geometry in previous study. To apply complete Gurson model the parameters describing the voids' behaviour and characteristic length parameter need to be determined. The nucleation parameters were identified by single specimen method of smooth tensile test specimen and from metallographic examination of fracture micro-mechanism. The characteristic length parameter was derived by fitting load versus deflection curves of sub-sized specimens. The simulations of the tests were carried out by FEM software ABAQUS 6.11 in Standard and Explicit modules. The identification was supported by parametric studies. Comparing experimental and simulated R-curve the ductile tearing was not successfully achieved. Insufficient calibrated parameters as a result non-uniqueness problem of single specimen method were found.
Klíčová slova anglicky
complete Gurson model, single specimen approach, Eurofer97, R-curve
Vydáno
2012-05-14
Nakladatel
Institute of Theoretical and Applied Mechanics
Místo
Praha
ISBN
978-80-86246-40-6
Kniha
Engineering mechanics 2012
Strany od–do
1253–1258
Počet stran
6
BIBTEX
@inproceedings{BUT98501,
author="Luděk {Stratil} and Hynek {Hadraba} and Vladislav {Kozák} and Ivo {Dlouhý}",
title="Modelling of ductile fracture for sub-sized three-point-bend geometry",
booktitle="Engineering mechanics 2012",
year="2012",
pages="1253--1258",
publisher="Institute of Theoretical and Applied Mechanics",
address="Praha",
isbn="978-80-86246-40-6"
}