A constitutive model for the flow stress behavior and microstructure evolution in aluminum alloys under hot working conditions - with application to AA6099
Hallberg, Håkan LU
; Chamanfar, Ahmad
and Nanninga, Nicholas
(2019)
In Applied Mathematical Modelling
81.
p.253-262
- Abstract
- A constitutive model for aluminum alloys under hot working conditions is proposed. The elastic-viscoplastic model is implemented in a finite strain continuum mechanical framework. The model accounts for the interplay between dynamic recovery and recrystallization during hot working of aluminum alloys and central aspects of microstructure evolution such as grain/subgrain size and dislocation density. The proposed model is generic in the sense that it can be used for arbitrary aluminum alloys, but in order to demonstrate its capabilities, the model is calibrated to a newly developed AA6099 alloy in the present study. The model is thoroughly discussed and details on the numerical implementation as well as on the calibration of the model... (More)
- A constitutive model for aluminum alloys under hot working conditions is proposed. The elastic-viscoplastic model is implemented in a finite strain continuum mechanical framework. The model accounts for the interplay between dynamic recovery and recrystallization during hot working of aluminum alloys and central aspects of microstructure evolution such as grain/subgrain size and dislocation density. The proposed model is generic in the sense that it can be used for arbitrary aluminum alloys, but in order to demonstrate its capabilities, the model is calibrated to a newly developed AA6099 alloy in the present study. The model is thoroughly discussed and details on the numerical implementation as well as on the calibration of the model against experimental data are provided. (Less)
- Abstract (Swedish)
- A constitutive model for aluminum alloys under hot working conditions is proposed. The elastic-viscoplastic model is implemented in a finite strain continuum mechanical frame- work. The model accounts for the interplay between dynamic recovery and recrystalliza tion during hot working of aluminum alloys and central aspects of microstructure evolution such as grain/subgrain size and dislocation density. The proposed model is generic in the sense that it can be used for arbitrary aluminum alloys, but in order to demonstrate its capabilities, the model is calibrated to a newly developed AA6099 alloy in the present study. The model is thoroughly discussed and details on the numerical implementation as well as on the calibration of the model... (More)
- A constitutive model for aluminum alloys under hot working conditions is proposed. The elastic-viscoplastic model is implemented in a finite strain continuum mechanical frame- work. The model accounts for the interplay between dynamic recovery and recrystalliza tion during hot working of aluminum alloys and central aspects of microstructure evolution such as grain/subgrain size and dislocation density. The proposed model is generic in the sense that it can be used for arbitrary aluminum alloys, but in order to demonstrate its capabilities, the model is calibrated to a newly developed AA6099 alloy in the present study. The model is thoroughly discussed and details on the numerical implementation as well as on the calibration of the model against experimental data are provided. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/c2f1e4ed-da35-47a9-9f36-7faad4adde3c
- author
- Hallberg, Håkan
LU
; Chamanfar, Ahmad
and Nanninga, Nicholas
- organization
- publishing date
- 2019
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Mathematical Modelling
- volume
- 81
- pages
- 10 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85077505359
- ISSN
- 0307-904X
- DOI
- 10.1016/j.apm.2019.12.020
- language
- English
- LU publication?
- yes
- id
- c2f1e4ed-da35-47a9-9f36-7faad4adde3c
- date added to LUP
- 2020-01-09 07:21:30
- date last changed
- 2022-04-18 19:44:02
@article{c2f1e4ed-da35-47a9-9f36-7faad4adde3c,
abstract = {{A constitutive model for aluminum alloys under hot working conditions is proposed. The elastic-viscoplastic model is implemented in a finite strain continuum mechanical framework. The model accounts for the interplay between dynamic recovery and recrystallization during hot working of aluminum alloys and central aspects of microstructure evolution such as grain/subgrain size and dislocation density. The proposed model is generic in the sense that it can be used for arbitrary aluminum alloys, but in order to demonstrate its capabilities, the model is calibrated to a newly developed AA6099 alloy in the present study. The model is thoroughly discussed and details on the numerical implementation as well as on the calibration of the model against experimental data are provided.}},
author = {{Hallberg, Håkan and Chamanfar, Ahmad and Nanninga, Nicholas}},
issn = {{0307-904X}},
language = {{eng}},
pages = {{253--262}},
publisher = {{Elsevier}},
series = {{Applied Mathematical Modelling}},
title = {{A constitutive model for the flow stress behavior and microstructure evolution in aluminum alloys under hot working conditions - with application to AA6099}},
url = {{http://dx.doi.org/10.1016/j.apm.2019.12.020}},
doi = {{10.1016/j.apm.2019.12.020}},
volume = {{81}},
year = {{2019}},
}