*JOINT ELASTICITY

Specify elastic properties for elastic-plastic joint elements.

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

This page discusses:

See Also
*EPJOINT
In Other Guides
Elastic-Plastic Joints

ProductsAbaqus/Standard

TypeModel data

LevelPartPart instance

Required parameters

MODULI

Set MODULI=SPUD CAN to define spud can moduli. Set MODULI=GENERAL to enter a general elastic modulus.

NDIM

Set NDIM=2 to enter values for a two-dimensional problem. Set NDIM=3 to enter values for a three-dimensional problem.

Optional parameters

DEPENDENCIES

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

Data lines for MODULI=SPUD CAN and NDIM=2

First line

  1. Gv⁢v, equivalent elastic shear modulus for vertical displacements.

  2. Gh⁢h, equivalent elastic shear modulus for horizontal displacements.

  3. Gr⁢r, equivalent elastic shear modulus for rotational displacements.

  4. ν, Poisson's ratio of the soil.

  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 elastic behavior as a function of temperature and other predefined field variables.

Data lines for MODULI=SPUD CAN and NDIM=3

First line

  1. Gv⁢v, equivalent elastic shear modulus for vertical displacements.

  2. Gh⁢h, equivalent elastic shear modulus for horizontal displacements.

  3. Gr⁢r, equivalent elastic shear modulus for rotational displacements.

  4. ν, Poisson's ratio of the soil.

  5. kt, torsional elastic modulus.

  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 elastic behavior as a function of temperature and other predefined field variables.

Data lines for MODULI=GENERAL and NDIM=2

First line

  1. k1111.

  2. k1122.

  3. k2222.

  4. k1112.

  5. k2212.

  6. k1212.

  7. Temperature.

  8. First field variable.

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

  1. Second field variable.

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

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

Data lines for MODULI=GENERAL and NDIM=3

First line

  1. k1111.

  2. k1122.

  3. k2222.

  4. k1133.

  5. k2233.

  6. k3333.

  7. k1112.

  8. k2212.

Second line

  1. k3312.

  2. k1212.

  3. k1113.

  4. k2213.

  5. k3313.

  6. k1213.

  7. k1313.

  8. k1123.

Third line

  1. k2223.

  2. k3323.

  3. k1223.

  4. k1323.

  5. k2323.

  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 elastic behavior as a function of temperature and other predefined field variables.