CapPlasticity object

The CapPlasticity object specifies the modified Drucker-Prager/Cap plasticity model.

The following topics are discussed:

Access

materialApi.materials()[name].capPlasticity()

CapPlasticity(...)

This method creates a CapPlasticity object.

Path

materialApi.materials()[name].CapPlasticity

Prototype

odb_CapPlasticity&
CapPlasticity(const odb_SequenceSequenceDouble& table,
              bool temperatureDependency,
              int dependencies);

Required arguments

table

An odb_SequenceSequenceDouble specifying the items described below.

Optional arguments

temperatureDependency

A Boolean specifying whether the data depend on temperature. The default value is false.

dependencies

An Int specifying the number of field variable dependencies. The default value is 0.

Table data

  • Material cohesion, d, in the pt plane (Abaqus/Standard) or in the pq plane (Abaqus/Explicit).

  • Material angle of friction, β, in the pt plane (Abaqus/Standard) or in the pq plane (Abaqus/Explicit). Give the value in degrees.

  • Cap eccentricity parameter, R. Its value must be greater than zero (typically 0.0 <R< 1.0).

  • Initial cap yield surface position, εvolpl|0.

  • Transition surface radius parameter, α. The default value is 0.0 (i.e., no transition surface).

  • (Not used in Abaqus/Explicit) K, the ratio of the flow stress in triaxial tension to the flow stress in triaxial compression. Possible values are 0.778 K 1.0. If the default value of 0.0 is accepted, Abaqus/Standard assumes K= 1.0.

  • Temperature, if the data depend on temperature.

  • Value of the first field variable, if the data depend on field variables.

  • Value of the second field variable.

  • Etc.

Return value

A CapPlasticity object.

Exceptions

RangeError.

Members

The CapPlasticity object has members with the same names and descriptions as the arguments to the CapPlasticity method.

In addition, the CapPlasticity object can have the following members:

Prototype

odb_CapCreepCohesion capCreepCohesion() const;
odb_CapCreepConsolidation capCreepConsolidation() const;
odb_CapHardening capHardening() const;
capCreepCohesion

A CapCreepCohesion object.

capCreepConsolidation

A CapCreepConsolidation object.

capHardening

A CapHardening object.

Corresponding analysis keywords