A boundary element analysis of the axisymmetric extrusion processes

Abhijit Chandra; Sunil Saigal

doi:10.1016/0020-7462(91)90076-6

A boundary element analysis of the axisymmetric extrusion processes

Abhijit Chandra
, Sunil Saigal

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

The subject of this paper is a boundary element method (BEM) analysis of the axisymmetric extrusion processes. It is demonstrated that BEM may be used to analyse, efficiently and accurately, this complicated class of metal forming problems involving both geometric and material non-linearities. An updated Lagrangian approach is adopted in this analysis. The frictional conditions at the die-workpiece interface are introduced through a smeared interface element. Numerical results for sample problems of axisymmetric extrusion of Fe-0.05 carbon steel at a temperature of 1173 K, obtained by the BEM, are presented and discussed in this paper. A state variable elastic-viscoplastic model is used for material description. The BEM results are compared against those obtained by FEM for the same sample problems.

Original language	English (US)
Pages (from-to)	1-13
Number of pages	13
Journal	International Journal of Non-Linear Mechanics
Volume	26
Issue number	1
DOIs	https://doi.org/10.1016/0020-7462(91)90076-6
State	Published - 1991
Externally published	Yes

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Applied Mathematics

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10.1016/0020-7462(91)90076-6

Cite this

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title = "A boundary element analysis of the axisymmetric extrusion processes",

abstract = "The subject of this paper is a boundary element method (BEM) analysis of the axisymmetric extrusion processes. It is demonstrated that BEM may be used to analyse, efficiently and accurately, this complicated class of metal forming problems involving both geometric and material non-linearities. An updated Lagrangian approach is adopted in this analysis. The frictional conditions at the die-workpiece interface are introduced through a smeared interface element. Numerical results for sample problems of axisymmetric extrusion of Fe-0.05 carbon steel at a temperature of 1173 K, obtained by the BEM, are presented and discussed in this paper. A state variable elastic-viscoplastic model is used for material description. The BEM results are compared against those obtained by FEM for the same sample problems.",

author = "Abhijit Chandra and Sunil Saigal",

note = "Funding Information: Acknowledgements-The research reported here is supported by Grant No. DMC 8657345 of the U.S. National Science Foundation to the University of Arizona. Many valuable discussions with Professor S. Mukherjee of Cornell University and with Professor H. Rajiyah of Georgia Institute of Technology are also gratefully acknowledged. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.",

year = "1991",

doi = "10.1016/0020-7462(91)90076-6",

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T1 - A boundary element analysis of the axisymmetric extrusion processes

AU - Chandra, Abhijit

AU - Saigal, Sunil

N1 - Funding Information: Acknowledgements-The research reported here is supported by Grant No. DMC 8657345 of the U.S. National Science Foundation to the University of Arizona. Many valuable discussions with Professor S. Mukherjee of Cornell University and with Professor H. Rajiyah of Georgia Institute of Technology are also gratefully acknowledged. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.

PY - 1991

Y1 - 1991

N2 - The subject of this paper is a boundary element method (BEM) analysis of the axisymmetric extrusion processes. It is demonstrated that BEM may be used to analyse, efficiently and accurately, this complicated class of metal forming problems involving both geometric and material non-linearities. An updated Lagrangian approach is adopted in this analysis. The frictional conditions at the die-workpiece interface are introduced through a smeared interface element. Numerical results for sample problems of axisymmetric extrusion of Fe-0.05 carbon steel at a temperature of 1173 K, obtained by the BEM, are presented and discussed in this paper. A state variable elastic-viscoplastic model is used for material description. The BEM results are compared against those obtained by FEM for the same sample problems.

AB - The subject of this paper is a boundary element method (BEM) analysis of the axisymmetric extrusion processes. It is demonstrated that BEM may be used to analyse, efficiently and accurately, this complicated class of metal forming problems involving both geometric and material non-linearities. An updated Lagrangian approach is adopted in this analysis. The frictional conditions at the die-workpiece interface are introduced through a smeared interface element. Numerical results for sample problems of axisymmetric extrusion of Fe-0.05 carbon steel at a temperature of 1173 K, obtained by the BEM, are presented and discussed in this paper. A state variable elastic-viscoplastic model is used for material description. The BEM results are compared against those obtained by FEM for the same sample problems.

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JO - International Journal of Non-Linear Mechanics

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A boundary element analysis of the axisymmetric extrusion processes

Abstract

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