Home > Research > Publications & Outputs > A comparative study between micro- and macro-me...
View graph of relations

A comparative study between micro- and macro-mechanical constitutive models developed for complex loading scenarios

Research output: Contribution to Journal/MagazineJournal articlepeer-review

  • Y. Jeong
  • F. Barlat
  • C.N. Tomé
  • W. Wen
<mark>Journal publication date</mark>1/06/2017
<mark>Journal</mark>International Journal of Plasticity
Number of pages17
Pages (from-to)212-228
Publication StatusPublished
Early online date6/08/16
<mark>Original language</mark>English


Constitutive models developed for simulating plastic response upon strain path changes are combined: 1) a macro-mechanical model based on anisotropic yield function, associated flow rule and distortional hardening using Homogeneous Anisotropic Hardening (HAH) approach; 2) a micro-mechanical model using self-consistent crystal plasticity in conjunction with crystallographic dislocation-density based hardening. The micro-mechanical model is employed to probe the yield surface in order to gain the insight required to construct empirical rules appropriate for the macro-mechanical model. Simulation results of the micro-mechanical model under various loading conditions involving strain path changes and different crystallographic textures are presented. The trends captured in the yield surface evolution predicted by the micro-mechanical model were used to validate and improve the empirical rules used in the HAH model.