*JOINT PLASTICITY

Specify plastic properties for elastic-plastic joint elements.

This option is used to define the plastic behavior for elastic-plastic joint elements. It can be used only in conjunction with the EPJOINT option.

Related Topics
*EPJOINT
In Other Guides
Elastic-plastic joints

ProductsAbaqus/Standard

TypeModel data

LevelPartPart instance

Required parameters

TYPE

Set TYPE=SAND to specify the model for interaction of spud cans and sand. Set TYPE=CLAY to specify the model for interaction of spud cans and clay. Set TYPE=MEMBER to specify the parabolic model for structural members.

Optional parameters

DEPENDENCIES

Set this parameter equal to the number of field variable dependencies included in the definition of the plasticity property values. If this parameter is omitted, it is assumed that the plasticity property values are constant or depend only on temperature. See Material data definition for more information.

Data lines for TYPE=SAND

First line

  1. Vt, yield strength in pure tension.

  2. Λ1, constant for yield surface shape.

  3. Λ2, constant for yield surface shape.

  4. ϕ, soil friction angle, in degrees.

  5. γ, soil unit weight.

  6. Temperature.

  7. First field variable.

  8. Second field variable.

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

  1. Third field variable.

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

Repeat this set of data lines as often as necessary to define the plastic behavior as a function of temperature and other predefined field variables.

Data lines for TYPE=CLAY

First line

  1. su, undrained shear strength of the clay.

  2. a, hardening parameter.

  3. b, hardening parameter.

  4. c, hardening parameter.

  5. Temperature.

  6. First field variable.

  7. Second field variable.

  8. Third field variable.

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

  1. Fourth field variable.

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

Repeat this set of data lines as often as necessary to define the plastic behavior as a function of temperature and other predefined field variables.

Data lines for TYPE=MEMBER

First line

  1. Vc, compressive capacity.

  2. Vt, tensile capacity.

  3. Hm, horizontal capacity.

  4. Mm, moment capacity.

  5. Temperature.

  6. First field variable.

  7. Second field variable.

  8. Third field variable.

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

  1. Fourth field variable.

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

Repeat this set of data lines as often as necessary to define the plastic behavior as a function of temperature and other predefined field variables.