Detail publikace
Ductile fracture predictions in small punch testing of cold-rolled aluminium alloy
ŠEBEK, F. PARK, N. KUBÍK, P. PETRUŠKA, J. ZAPLETAL, J.
Anglický název
Ductile fracture predictions in small punch testing of cold-rolled aluminium alloy
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
en
Originální abstrakt
The ductile fracture has been observed in large as well as small scales. Three chosen Lode and pressure dependent phenomenological ductile fracture criteria with cut-offs were calibrated for aluminium alloy EN AW 2024-T351 using an enhanced hybrid experimental–numerical technique. It consisted of calibrating all the material constants of fracture criteria altogether. This enabled ready determination of the cut-off related constant for one of those criteria. Moreover, a non-quadratic Lode dependent plasticity model was coupled with the ductile failure criteria to form the damage plasticity approach in the numerical analysis. The fracture criteria were calibrated using the standard – large – sized specimens including a non-standard upsetting test. The specimens used for the calibration of failure criteria are usually ten times larger than that of a specimen for the small punch test. The transferability of calibrated parameters was tested and fair predictability was observed for all numerical models when applied to small scales.
Anglický abstrakt
The ductile fracture has been observed in large as well as small scales. Three chosen Lode and pressure dependent phenomenological ductile fracture criteria with cut-offs were calibrated for aluminium alloy EN AW 2024-T351 using an enhanced hybrid experimental–numerical technique. It consisted of calibrating all the material constants of fracture criteria altogether. This enabled ready determination of the cut-off related constant for one of those criteria. Moreover, a non-quadratic Lode dependent plasticity model was coupled with the ductile failure criteria to form the damage plasticity approach in the numerical analysis. The fracture criteria were calibrated using the standard – large – sized specimens including a non-standard upsetting test. The specimens used for the calibration of failure criteria are usually ten times larger than that of a specimen for the small punch test. The transferability of calibrated parameters was tested and fair predictability was observed for all numerical models when applied to small scales.
Klíčová slova anglicky
Displacement force relation; Dynamic; Elastic plastic solids; Failure; Yield
Vydáno
01.02.2019
ISSN
0013-7944
Ročník
206
Číslo
1
Strany od–do
509–525
Počet stran
17
BIBTEX
@article{BUT151747,
author="František {Šebek} and Namsu {Park} and Petr {Kubík} and Jindřich {Petruška} and Josef {Zapletal},
title="Ductile fracture predictions in small punch testing of cold-rolled aluminium alloy",
year="2019",
volume="206",
number="1",
month="February",
pages="509--525",
issn="0013-7944"
}