A Finite Element Model of Warm Metal Powder Compaction Process: Application of Finite Element Method (FEM) in Modelling the Forming of Metal Powder at above Ambient Temperature - Couverture souple

Rahman, M. M.; Ariffin, A. K.

 
9783845403977: A Finite Element Model of Warm Metal Powder Compaction Process: Application of Finite Element Method (FEM) in Modelling the Forming of Metal Powder at above Ambient Temperature
Couverture souple
ISBN 10 : 3845403977 ISBN 13 : 9783845403977
Editeur : LAP LAMBERT Academic Publishing, 2011

Synopsis

The development of finite element model for the simulation of a complete warm forming process of powder sintered component is presented here. The material constitutive laws were derived based on a continuum mechanics approach. The process of green compact generation was represented by a large displacement based finite element formulation. Three constitutive relations, i.e., Mohr-Coulomb, Elliptical Cap, and combination of these two yield models were used to describe the deformation behaviour of the powder mass during compaction. However, an Elliptical Cap model was shown to be the most appropriate. A plasticity theory of friction was employed in the treatment of the powder-tooling interface. The Roscoe-Burland criterion was used to describe the densification and dimensional change of the compact during the sintering. The staggered-incremental-iterative solution strategy was established to solve the non-linearity in the systems of equations. The numerical simulation results were validated through experimentation where a good agreement was observed.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

The development of finite element model for the simulation of a complete warm forming process of powder sintered component is presented here. The material constitutive laws were derived based on a continuum mechanics approach. The process of green compact generation was represented by a large displacement based finite element formulation. Three constitutive relations, i.e., Mohr-Coulomb, Elliptical Cap, and combination of these two yield models were used to describe the deformation behaviour of the powder mass during compaction. However, an Elliptical Cap model was shown to be the most appropriate. A plasticity theory of friction was employed in the treatment of the powder-tooling interface. The Roscoe-Burland criterion was used to describe the densification and dimensional change of the compact during the sintering. The staggered-incremental-iterative solution strategy was established to solve the non-linearity in the systems of equations. The numerical simulation results were validated through experimentation where a good agreement was observed.

Biographie de l'auteur

Dr. Md. Mujibur Rahman is an Assoc. Prof. at the Dept. of Mech. Engineering, Universiti Tenaga Nasional-Malaysia. He successfully completed his first degree with Cum Laude from the Dept. of Petroleum Engineering, Islamic University of Riau-Indonesia. He later obtained his MSc and PhD degrees in Mechanical & Materials Engineering from UKM-Malaysia.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2011
Langue
anglais
ISBN 10 
3845403977
ISBN 13 
9783845403977
Reliure
Broché
Nombre de pages
196
Coordonnées du fabricant
non disponible
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