Johnson cook constitutive modeling for austenite metal in hot forming process

Azman Senin, Zulkifli Mohd Nopiah, Ahmad Kamal Ariffin Mohd Ihsan, Shahrum Abdullah, Dzuraidah Abd. Wahab, Muhammad Jamhuri Jamaludin, Ahmad Zakaria

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Numerical computations have helped process engineers in designing the stamping process with minimal process defects. The constitutive modelling for hot stamping represents a complex relationship between stress, strain, strain rate and process temperature. The sheet thickness is 1.5 mm were prepared according to the ASTM standard. The flow curve properties of NPH-1500 sheet were investigated by conducting uniaxial tension tests with temperature from 600°C to 800°C and subjected to strain rate of 0.1/s,1/s and 10/s. The flow curves for the respective experiment runs were investigated and modelled with Johnson Cook constitutive modelling where the important metal parameters were derived. Based on the results, the error of the metal parameters values from experimental works and commercial database was found to be less than 5%.

Original languageEnglish
Pages (from-to)71-75
Number of pages5
JournalJurnal Teknologi
Volume78
Issue number6-10
Publication statusPublished - 2016

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Stamping
Austenite
Strain rate
Metals
Engineers
Temperature
Defects
Experiments

Keywords

  • Embedded material model
  • Flow curve
  • Hot stamping
  • Johnson cook constitutive model
  • Material stress

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Johnson cook constitutive modeling for austenite metal in hot forming process. / Senin, Azman; Mohd Nopiah, Zulkifli; Mohd Ihsan, Ahmad Kamal Ariffin; Abdullah, Shahrum; Abd. Wahab, Dzuraidah; Jamaludin, Muhammad Jamhuri; Zakaria, Ahmad.

In: Jurnal Teknologi, Vol. 78, No. 6-10, 2016, p. 71-75.

Research output: Contribution to journalArticle

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AU - Jamaludin, Muhammad Jamhuri

AU - Zakaria, Ahmad

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