Evolution of plastic anisotropy and strain rate sensitivity

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

Organisaatiot

  • RWTH Aachen University
  • Massachusetts Institute of Technology

Kuvaus

In this study, it is aimed to formulate a constitutive model accounting for the evolving features of the plastic anisotropy, in terms of both stresses and r-values, and the strain rate sensitivity during the plastic deformation. For the model calibration and validation, a bcc ferritic steel is selected. The material parameters are calibrated by tensile experiments under different loading configurations and different strain rates. Nakajima tests are conducted to characterise the cold formability of the selected steel. The model prediction is compared with the experimental results and it is concluded that the formability prediction is significantly improved when considering the evolving features during the plastic deformation.

Yksityiskohdat

AlkuperäiskieliEnglanti
Artikkeli12063
JulkaisuJournal of Physics: Conference Series
Vuosikerta1063
Numero1
TilaJulkaistu - 6 elokuuta 2018
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa

ID: 28343441