TY - JOUR
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.
UR - http://www.scopus.com/inward/record.url?scp=0025721371&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0025721371&partnerID=8YFLogxK
U2 - 10.1016/0020-7462(91)90076-6
DO - 10.1016/0020-7462(91)90076-6
M3 - Article
AN - SCOPUS:0025721371
SN - 0020-7462
VL - 26
SP - 1
EP - 13
JO - International Journal of Non-Linear Mechanics
JF - International Journal of Non-Linear Mechanics
IS - 1
ER -