A Constitutive Model for Metal Powder and Its Numerical Treatment Using Finite Elements
Title | A Constitutive Model for Metal Powder and Its Numerical Treatment Using Finite Elements PDF eBook |
Author | Wolfgang Bier |
Publisher | kassel university press GmbH |
Pages | 166 |
Release | 2008 |
Genre | |
ISBN | 3899583965 |
Computational Plasticity in Powder Forming Processes
Title | Computational Plasticity in Powder Forming Processes PDF eBook |
Author | Amir Khoei |
Publisher | Elsevier |
Pages | 483 |
Release | 2010-07-07 |
Genre | Technology & Engineering |
ISBN | 0080529704 |
The powder forming process is an extremely effective method of manufacturing structural metal components with high-dimensional accuracy on a mass production basis. The process is applicable to nearly all industry sectors. It offers competitive engineering solutions in terms of technical performance and manufacturing costs. For these reasons, powder metallurgy is developing faster than other metal forming technology. Computational Plasticity in Powder Forming Proceses takes a specific look at the application of computer-aided engineering in modern powder forming technologies, with particular attention given to the Finite Element Method (FEM). FEM analysis provides detailed information on conditions within the processed material, which is often more complete than can be obtained even from elaborate physical experiments, and the numerical simulation makes it possible to examine a range of designs, or operating conditions economically.* Describes the mechanical behavior of powder materials using classical and modern constitutive theories.* Devoted to the application of adaptive FEM strategy in the analysis of powder forming processes.* 2D and 3D numerical modeling of powder forming processes are presented, using advanced plasticity models.
A Finite Element Model of Warm Metal Powder Compaction Process
Title | A Finite Element Model of Warm Metal Powder Compaction Process PDF eBook |
Author | M. M. Rahman |
Publisher | LAP Lambert Academic Publishing |
Pages | 196 |
Release | 2011-08 |
Genre | |
ISBN | 9783845403977 |
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.
Crystal Plasticity Finite Element Methods
Title | Crystal Plasticity Finite Element Methods PDF eBook |
Author | Franz Roters |
Publisher | John Wiley & Sons |
Pages | 188 |
Release | 2011-08-04 |
Genre | Technology & Engineering |
ISBN | 3527642099 |
Written by the leading experts in computational materials science, this handy reference concisely reviews the most important aspects of plasticity modeling: constitutive laws, phase transformations, texture methods, continuum approaches and damage mechanisms. As a result, it provides the knowledge needed to avoid failures in critical systems udner mechanical load. With its various application examples to micro- and macrostructure mechanics, this is an invaluable resource for mechanical engineers as well as for researchers wanting to improve on this method and extend its outreach.
Scientific and Technical Aerospace Reports
Title | Scientific and Technical Aerospace Reports PDF eBook |
Author | |
Publisher | |
Pages | 376 |
Release | 1995 |
Genre | Aeronautics |
ISBN |
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
International Workshop on Modelling of Metal Powder Forming Processes
Title | International Workshop on Modelling of Metal Powder Forming Processes PDF eBook |
Author | |
Publisher | |
Pages | 390 |
Release | 1997 |
Genre | Metal powders |
ISBN |
Applied Mechanics Reviews
Title | Applied Mechanics Reviews PDF eBook |
Author | |
Publisher | |
Pages | 338 |
Release | 1987 |
Genre | Mechanics, Applied |
ISBN |