An experimental verification of the finite element modelling of equal channel angular pressing

Strain hardening of pure copper and friction between the sample and die channels is considered for finite element modelling. To validate the FEM results, the FEM calculated effective strain variations were compared with the hardness measurements. Simulated load–stroke curve and peak load calculation...

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Bibliographic Details
Published in:Computational materials science 2009-08, Vol.46 (2), p.347-351
Main Authors: Nagasekhar, A.V., Yoon, S.C., Tick-Hon, Y., Kim, H.S.
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Equal channel angular extrusion
Equal channel angular pressing
Exact sciences and technology
Finite element modelling
Materials science
Other heat and thermomechanical treatments
Peak load
Physics
Severe plastic deformation
Strain homogeneity
Treatment of materials and its effects on microstructure and properties
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Summary:Strain hardening of pure copper and friction between the sample and die channels is considered for finite element modelling. To validate the FEM results, the FEM calculated effective strain variations were compared with the hardness measurements. Simulated load–stroke curve and peak load calculations were also compared with the experimentally recorded load–stroke curve and peak load. Different stages of the load–stroke curve of the ECAP process was explained in detail. In over all, good conformity is observed between the FEM calculations and experimental results.
ISSN:0927-0256
1879-0801
DOI:10.1016/j.commatsci.2009.03.018