A numerical investigation of the effect of texture op mechanical properties of dual phase steel using a dislocation-based crystal plasticity model

Hao Lyu, Annie Ruimi, Fan Zhang, Hussein M. Zbib

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this work, we investigate if and how the initial texture of dual phase (DP) steel affects its mechanical behavior. We advocate a multi-scale approach that combines a continuum dislocation dynamic model (CDD) and a viscoplastic self-consistent (VPSC) model. The model accounts for the texture evolution, the effect of dislocations evolution inside the grain and the grain-grain interactions. Size effect is modeled by incorporating the density of the so called geometrically necessary dislocations (GND) into the equation for the dislocation mean free path. Different initial rolling textures of DP980 are generated and used as input in the multi-scale model. By using parameters obtained previously, the stress-strain curves and the texture evolution for various initial textures are predicted. The effect of different texture fibers on the mechanical behavior of the material are studied and compared to experiment results.

Original languageEnglish
Title of host publicationMaterials Science and Technology Conference and Exhibition 2015, MS and T 2015
PublisherAssociation for Iron and Steel Technology, AISTECH
Pages545-552
Number of pages8
Volume1
ISBN (Electronic)9781510813939
Publication statusPublished - 2015
Externally publishedYes
EventMaterials Science and Technology Conference and Exhibition 2015, MS and T 2015 - Columbus, United States
Duration: 4 Oct 20158 Oct 2015

Other

OtherMaterials Science and Technology Conference and Exhibition 2015, MS and T 2015
CountryUnited States
CityColumbus
Period4/10/158/10/15

    Fingerprint

Keywords

  • Crystal plasticity
  • Dislocation theory
  • Dual phase steel
  • Texture

ASJC Scopus subject areas

  • Materials Science (miscellaneous)
  • Mechanics of Materials

Cite this

Lyu, H., Ruimi, A., Zhang, F., & Zbib, H. M. (2015). A numerical investigation of the effect of texture op mechanical properties of dual phase steel using a dislocation-based crystal plasticity model. In Materials Science and Technology Conference and Exhibition 2015, MS and T 2015 (Vol. 1, pp. 545-552). Association for Iron and Steel Technology, AISTECH.