Analysis of the forming process of sintered powder metals by a rigid- plastic finite-element method
type: Item
instance of: scholarly article
title: Analysis of the forming process of sintered powder metals by a rigid- plastic finite-element method
zbMATH Open document ID: 0604.73048
DOI: 10.1016/0020-7403(87)90037-3
author: B. George
published in: International Journal of Mechanical Sciences
publication date: 1987-01-01T00:00:00Z
review text: A finite-element method for analyzing plastic deformation of sintered powder metals is developed. To give a theoretical basis, a variational principle for rigid-plastic deformation of porous metals is derived. The effect of the change in density during plastic deformation due to expansion or contraction of the internal pores is accommodated to the rigid-plastic finite-element method. As an example of analysis, plane- strain continuous rolling of sintered powder plates is treated. The distributions of density, strain, strain rate and stress in the plate and the pressure distribution over the roll surface are calculated. It is shown that the deformation behaviour of sintered powder metals is significantly influenced by the initial density.
Mathematics Subject Classification ID: 74C15
Mathematics Subject Classification ID: 74C20
Mathematics Subject Classification ID: 74S05
zbMATH DE Number: 3976504
zbMATH Keywords: steady-state deformation
zbMATH Keywords: plane-strain rolling
zbMATH Keywords: stress distribution
zbMATH Keywords: strain distribution
zbMATH Keywords: relative density
zbMATH Keywords: sintered powder metals
zbMATH Keywords: variational principle
zbMATH Keywords: rigid-plastic deformation
zbMATH Keywords: porous metals
MaRDI profile type: Publication
full work available at URL: 0020-7403(87)90037-3
OpenAlex ID: W2050780457
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description: scientific article; zbMATH DE number 3976504