Published 2013 | Version v1
Journal article Metadata-only

A yield function for single crystals containing voids

Creators

  • 1. Laboratoire de Comportement mecanique des Materiaux Irradies, CEA Saclay, 91191 Gif-sur-Yvette cedex (France)
  • 2. Centre des Materiaux, Mines ParisTech, CNRS UMR 7633, BP 87, 91003 Evry cedex (France)
  • 3. EDF R and D - Neutronic, NICT, Scientific Calculations Department, 1 avenue du General de Gaulle 92141 Clamart (France)

Description

A yield function for single crystals containing voids has been developed based on a variational approach. This first yield function is phenomenologically extended by modifying the dependence on the mean stress and introducing three adjustable parameters. Unit cell finite element calculations are performed for various stress triaxiality ratios, main loading directions and porosity levels in the case of a perfectly plastic FCC single crystal. The three model parameters are adjusted on the unit cell calculations so that a very good agreement between simulation results and the proposed model is obtained. (authors)

Availability note (English)

Available from doi: http://dx.doi.org/10.1016/j.ijsolstr.2013.02.005

Additional details

Identifiers

DOI
10.1016/j.ijsolstr.2013.02.005;

Publishing Information

Journal Title
International Journal of Solids and Structures
Journal Volume
50
Journal Page Range
p. 2115-2131
ISSN
0020-7683

INIS

Country of Publication
United States
Country of Input or Organization
France
INIS RN
46132637
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ANISOTROPY; COMPUTERIZED SIMULATION; DUCTILITY; FCC LATTICES; FINITE ELEMENT METHOD; FRACTURES; GRAIN ORIENTATION; MONOCRYSTALS; POROSITY; VOIDS
Descriptors DEC
CALCULATION METHODS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CRYSTALS; CUBIC LATTICES; FAILURES; MATHEMATICAL SOLUTIONS; MECHANICAL PROPERTIES; MICROSTRUCTURE; NUMERICAL SOLUTION; ORIENTATION; SIMULATION; TENSILE PROPERTIES; THREE-DIMENSIONAL LATTICES

Optional Information

Notes
71 refs.