Three-dimensional analysis of compaction of metal powder
(2002) In Mechanics of Materials 34(1). p.43-59- Abstract
- Three-dimensional compaction simulations of geometries with circular and quadratic cross-sections are reported using dilatant viscoplastic material models representing a ductile steel powder. The simulations are compared with experiments using in situ measurements of the wall-tractions within the die. Two different porous viscoplastic material models have been used: the combined Fleck-Kuhn-MeMeeking (FKM) and Gurson model and the Shima-Oyane model. The contact between the die and the powder was modelled with Coulomb-type friction. Effects such as the applied traction-density response and average relations for the upper, lower and the normal tractions against the die wall are compared. Comparisons between the numerical results and... (More)
- Three-dimensional compaction simulations of geometries with circular and quadratic cross-sections are reported using dilatant viscoplastic material models representing a ductile steel powder. The simulations are compared with experiments using in situ measurements of the wall-tractions within the die. Two different porous viscoplastic material models have been used: the combined Fleck-Kuhn-MeMeeking (FKM) and Gurson model and the Shima-Oyane model. The contact between the die and the powder was modelled with Coulomb-type friction. Effects such as the applied traction-density response and average relations for the upper, lower and the normal tractions against the die wall are compared. Comparisons between the numerical results and experimental results show that both material models can well be used to capture the overall density distributions for the geometries studied and that many of the coarse three-dimensional features of the powder-pressing process are well described by the simulations. (C) 2002 Elsevier Science Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/345768
- author
- Cedergren, Joakim LU ; Sørensen, NJ and Bergmark, A
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- experiments, finite element, 3D, viscoplasticity, porous material, powder compaction, friction
- in
- Mechanics of Materials
- volume
- 34
- issue
- 1
- pages
- 43 - 59
- publisher
- Elsevier
- external identifiers
-
- wos:000173228400003
- scopus:0036134098
- ISSN
- 0167-6636
- DOI
- 10.1016/S0167-6636(01)00090-4
- language
- English
- LU publication?
- yes
- id
- ad345285-14ea-453d-8e89-d2e27f240e72 (old id 345768)
- date added to LUP
- 2016-04-01 11:37:35
- date last changed
- 2022-04-20 19:24:51
@article{ad345285-14ea-453d-8e89-d2e27f240e72,
abstract = {{Three-dimensional compaction simulations of geometries with circular and quadratic cross-sections are reported using dilatant viscoplastic material models representing a ductile steel powder. The simulations are compared with experiments using in situ measurements of the wall-tractions within the die. Two different porous viscoplastic material models have been used: the combined Fleck-Kuhn-MeMeeking (FKM) and Gurson model and the Shima-Oyane model. The contact between the die and the powder was modelled with Coulomb-type friction. Effects such as the applied traction-density response and average relations for the upper, lower and the normal tractions against the die wall are compared. Comparisons between the numerical results and experimental results show that both material models can well be used to capture the overall density distributions for the geometries studied and that many of the coarse three-dimensional features of the powder-pressing process are well described by the simulations. (C) 2002 Elsevier Science Ltd. All rights reserved.}},
author = {{Cedergren, Joakim and Sørensen, NJ and Bergmark, A}},
issn = {{0167-6636}},
keywords = {{experiments; finite element; 3D; viscoplasticity; porous material; powder compaction; friction}},
language = {{eng}},
number = {{1}},
pages = {{43--59}},
publisher = {{Elsevier}},
series = {{Mechanics of Materials}},
title = {{Three-dimensional analysis of compaction of metal powder}},
url = {{http://dx.doi.org/10.1016/S0167-6636(01)00090-4}},
doi = {{10.1016/S0167-6636(01)00090-4}},
volume = {{34}},
year = {{2002}},
}