Plane strain extrusion by sequential limit analysis
type: Item
instance of: scholarly article
title: Plane strain extrusion by sequential limit analysis
zbMATH Open document ID: 0934.74075
DOI: 10.1016/S0020-7403(96)00089-6
author: Chung-Li Hwan
published in: International Journal of Mechanical Sciences
publication date: 2000-04-13T00:00:00Z
review text: The analysis of plane strain forward extrusion through wedge shaped dies is implemented by using a finite element procedure based on a dual (upper bound) formulation. Since the von Mises yield criterion is employed and expressed in an inequality form, stresses do not appear in this upper bound formulation. As a result, neither complicated stress updating nor rigid zone treatment is needed in this approach. The author incorporates the effect of material strain hardening in the analysis by updating local yield stresses stepwise with deformation history. The computed results are in good agreement with existing analytical solutions. Finally, the author investigates the effects of friction, die semiangle, height reduction ratio and material strain hardening on the extrusion load of aluminum.
Mathematics Subject Classification ID: 74S05
Mathematics Subject Classification ID: 74C99
Mathematics Subject Classification ID: 74M15
zbMATH DE Number: 1076448
zbMATH Keywords: dual formulation
zbMATH Keywords: von Mises yield criterion
zbMATH Keywords: material strain hardening
zbMATH Keywords: deformation history
zbMATH Keywords: friction
zbMATH Keywords: die semiangle
zbMATH Keywords: extrusion load
MaRDI profile type: Publication
Wikidata QID: Q126400782
full work available at URL: s0020-7403(96)00089-6
OpenAlex ID: W2016315285
description: scientific article; zbMATH DE number 1076448