Non-crystallographic shear banding in crystal plasticity FEM simulations: Example of texture evolution in α-brass

N. Jia, F. Roters, P. Eisenlohr, C. Kords, D. Raabe

Research output: Contribution to journalArticle

  • 30 Citations

Abstract

We present crystal plasticity finite element simulations of the texture evolution in α-brass polycrystals under plane strain compression. The novelty is a non-crystallographic shear band mechanism [Anand L, Su C. J Mech Phys Solids 2005;53:1362] that is incorporated into the constitutive model in addition to dislocation and twinning. Non-crystallographic deformation associated with shear banding leads to weaker copper and S texture components and to a stronger brass texture compared to simulations enabling slip and twinning only. The lattice rotation rates are reduced when shear banding occurs. This effect leads to a weaker copper component. Also, the initiation of shear banding promotes brass-type components. In summary the occurrence of non-crystallographic deformation through shear bands shifts face-centered-cubic deformation textures from the copper type to the brass type.

Original languageEnglish (US)
Pages (from-to)1099-1115
Number of pages17
JournalActa Materialia
Volume60
Issue number3
DOIs
StatePublished - Feb 2012
Externally publishedYes

Profile

Brass
Textures
Preganglionic Autonomic Fibers
Copper
Carbamyl Phosphate
Shear bands
Twinning
Plasticity
Crystals
Cinanserin
Carcinoid Tumor
Polycrystals
Constitutive models
Dislocations (crystals)
Crystal lattices
Compaction
Finite element method
Carbamoyl-Phosphate Synthase (Glutamine-Hydrolyzing)
Bronchial Neoplasms
Echinomycin

Keywords

  • Finite element analysis
  • Shear bands
  • Texture

ASJC Scopus subject areas

  • Ceramics and Composites
  • Metals and Alloys
  • Polymers and Plastics
  • Electronic, Optical and Magnetic Materials

Cite this

Non-crystallographic shear banding in crystal plasticity FEM simulations : Example of texture evolution in α-brass. / Jia, N.; Roters, F.; Eisenlohr, P.; Kords, C.; Raabe, D.

In: Acta Materialia, Vol. 60, No. 3, 02.2012, p. 1099-1115.

Research output: Contribution to journalArticle

Jia, N.; Roters, F.; Eisenlohr, P.; Kords, C.; Raabe, D. / Non-crystallographic shear banding in crystal plasticity FEM simulations : Example of texture evolution in α-brass.

In: Acta Materialia, Vol. 60, No. 3, 02.2012, p. 1099-1115.

Research output: Contribution to journalArticle

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