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 - Softcover

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
Softcover
ISBN 10: 3845403977 ISBN 13: 9783845403977
Verlag: LAP LAMBERT Academic Publishing, 2011

Inhaltsangabe

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.

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Über die Autorin bzw. den Autor

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.

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Verlag
LAP LAMBERT Academic Publishing
Erscheinungsdatum
2011
Sprache
Englisch
ISBN 10 
3845403977
ISBN 13 
9783845403977
Einband
Taschenbuch
Anzahl der Seiten
196
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