CapPlasticity object

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

The following topics are discussed:

Access

import material
mdb.models[name].materials[name].capPlasticity
import odbMaterial
session.odbs[name].materials[name].capPlasticity

CapPlasticity(...)

This method creates a CapPlasticity object.

Path

mdb.models[name].materials[name].CapPlasticity
session.odbs[name].materials[name].CapPlasticity

Required arguments

table

A sequence of sequences of Floats specifying the items described below.

Optional arguments

temperatureDependency

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

dependencies

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

Table data

  • Material cohesion, d, in the p–t plane (Abaqus/Standard) or in the p–q plane (Abaqus/Explicit).

  • Material angle of friction, β, in the p–t plane (Abaqus/Standard) or in the p–q 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, εv⁢o⁢lp⁢l|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.

setValues(...)

This method modifies the CapPlasticity object.

Required arguments

None.

Optional arguments

The optional arguments to setValues are the same as the arguments to the CapPlasticity method.

Return value

None.

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:

capCreepCohesion

A CapCreepCohesion object.

capCreepConsolidation

A CapCreepConsolidation object.

capHardening

A CapHardening object.

Corresponding analysis keywords