Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 11-24 |
| Seitenumfang | 14 |
| Fachzeitschrift | Production Engineering |
| Jahrgang | 9 |
| Ausgabenummer | 1 |
| Publikationsstatus | Veröffentlicht - Feb. 2014 |
Abstract
This paper focuses on studying different numerical models to simulate a solid-state sintering process with grain boundary diffusion for the components made of pure aluminium powders. A continuum model based on the linear viscous law is introduced to describe the mechanical behavior during sintering. To identify the parameters in the constitutive law (shear and bulk viscosity moduli in addition to sintering stress), various macroscopic models were utilized. Beside the mass conservation equation which regulates the densification process, Kang’s model based on Herring’s scale law, which takes into account the role of grain boundaries and diffusion area in densification, is also used to describe the densification process. These numerical models have been implemented in FORTRAN subroutine UMAT and solved using the FE-software ABAQUS/Standard. Finally, the densification behavior of each model is compared to each other.
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Maschinenbau
- Ingenieurwesen (insg.)
- Wirtschaftsingenieurwesen und Fertigungstechnik
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in: Production Engineering, Jahrgang 9, Nr. 1, 02.2014, S. 11-24.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Comparison between different numerical models of densification during solid-state sintering of pure aluminium powder
AU - Al-Qudsi, Ahmad
AU - Kammler, Matthias
AU - Bouguecha, Anas
AU - Bonk, Christian
AU - Behrens, Bernd Arno
N1 - Publisher Copyright: © 2014, German Academic Society for Production Engineering (WGP). Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2014/2
Y1 - 2014/2
N2 - This paper focuses on studying different numerical models to simulate a solid-state sintering process with grain boundary diffusion for the components made of pure aluminium powders. A continuum model based on the linear viscous law is introduced to describe the mechanical behavior during sintering. To identify the parameters in the constitutive law (shear and bulk viscosity moduli in addition to sintering stress), various macroscopic models were utilized. Beside the mass conservation equation which regulates the densification process, Kang’s model based on Herring’s scale law, which takes into account the role of grain boundaries and diffusion area in densification, is also used to describe the densification process. These numerical models have been implemented in FORTRAN subroutine UMAT and solved using the FE-software ABAQUS/Standard. Finally, the densification behavior of each model is compared to each other.
AB - This paper focuses on studying different numerical models to simulate a solid-state sintering process with grain boundary diffusion for the components made of pure aluminium powders. A continuum model based on the linear viscous law is introduced to describe the mechanical behavior during sintering. To identify the parameters in the constitutive law (shear and bulk viscosity moduli in addition to sintering stress), various macroscopic models were utilized. Beside the mass conservation equation which regulates the densification process, Kang’s model based on Herring’s scale law, which takes into account the role of grain boundaries and diffusion area in densification, is also used to describe the densification process. These numerical models have been implemented in FORTRAN subroutine UMAT and solved using the FE-software ABAQUS/Standard. Finally, the densification behavior of each model is compared to each other.
KW - Aluminium powder
KW - Constitutive model
KW - Numerical simulation
KW - Sintering
UR - http://www.scopus.com/inward/record.url?scp=84921999855&partnerID=8YFLogxK
U2 - 10.1007/s11740-014-0574-7
DO - 10.1007/s11740-014-0574-7
M3 - Article
AN - SCOPUS:84921999855
VL - 9
SP - 11
EP - 24
JO - Production Engineering
JF - Production Engineering
SN - 0944-6524
IS - 1
ER -