*RATIOS

Define anisotropic swelling.

This option is used to specify ratios that define anisotropic swelling. The RATIOS option can be used only in conjunction with the MOISTURE SWELLING option or the SWELLING option, and it should appear immediately after either one.

This page discusses:

See Also
*MOISTURE SWELLING
*SWELLING
In Other Guides
Moisture Swelling
Rate-Dependent Plasticity: Creep and Swelling

ProductsAbaqus/Standard

TypeModel data

LevelModel

Optional parameter when the RATIOS option is used with the SWELLING option

DEPENDENCIES

Set this parameter equal to the number of field variable dependencies included in the definition of the anisotropy ratios in addition to temperature. If this parameter is omitted, it is assumed that the ratios depend only on temperature. See Material Data Definition for more information.

Data lines to define anisotropic swelling ratios

First line

  1. r11.

  2. r22.

  3. r33.

  4. Temperature. This value and all of the following field variables can be defined only if the RATIOS option is used with the SWELLING option.

  5. First field variable.

  6. Second field variable.

  7. Etc., up to four field variables.

Subsequent lines (only needed if the DEPENDENCIES parameter has a value greater than four)

  1. Fifth field variable.

  2. Etc., up to eight field variables per line.

Repeat this set of data lines as often as necessary to define the dependence of the anisotropic swelling ratios on temperature and other field variables.