Strain rate-strain/stress relationship during isothermal forging: A deform-3D FEM

Japheth Obiko, Fredrick Mwema*, Esther T. Akinlabi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


A DeformTM-3D analysis was used to illustrate the effect of strain rate on isothermal deformation (forging) of X20CrMoV121 steel. The simulation process was conducted at an isothermal temperature of 850 °C and varying the strain rates of 1.9 s-1, 2 s -1 and 3 s-1. The results of temperature, strain and stress distribution at various strain rates were reported. The strain/stress distribution exhibited a heterogeneous distribution, indicating inhomogeneity during hot forging. It was also shown that the deformation inhomogeneity decreased with the increase in the strain rate. The results are comparable to experimental publications, indicating that DeformTM-3D is an effective tool for finite element analysis of hot deformation processes.

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalEngineering Solid Mechanics
Issue number1
Publication statusPublished - 2020
Externally publishedYes

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