LOCALIZATION

Description

This object selects a localization model to be applied to the different potentials of a gen_evp type behavior.

Syntax

Localization is indicated within a gen_evp behavior with an entry of the following type:

**localization type

From which the following localization types may be chosen:

CODE	DESCRIPTION
poly	polycrystal (multi-grain) model

poly

The polycrystal mode here is a generalized form of that described by Cailletaud and Pilvin [M25, M26, M27]. Several potentials of type crystal will be assembled to form a phase of the material, which in turn is grouped according to the orientations and volume fractions of material. The syntax for the model is:

**localization poly \(~\,\) *model_coefficients \(~\,~\,\) coefs [ *grains ] \(~\,\) [ grain list ] [ *file file_name ]

Example

***behavior gen_evp
 **elasticity isotropic
    young    200000.
    poisson  0.30
  **localization poly
    *grains
      -149.676 15.61819 154.676 1.
      -149.676 15.61819 154.676 1.
      -150.646 33.86400 155.646 0.2
    *model_coefficients
      C  50000.
      D  100.
 **potential octahedral
   *flow norton
       n  25.
       K  50.
   *isotropic nonlinear
       R0  100.
       Q   50.0
       b   50.0
   *kinematic linear
       C   2500.
   *interaction slip
       h1 1.0
       h2 1.0
       h3 1.0
       h4 1.0
       h5 1.0
       h6 1.0
***return