RateDependent object

The RateDependent object defines a rate-dependent viscoplastic model.

This page discusses:

Access

import material
mdb.models[name].materials[name].crushableFoam.rateDependent
mdb.models[name].materials[name].druckerPrager.rateDependent
mdb.models[name].materials[name].plastic.rateDependent
import odbMaterial
session.odbs[name].materials[name].crushableFoam.rateDependent
session.odbs[name].materials[name].druckerPrager.rateDependent
session.odbs[name].materials[name].plastic.rateDependent

RateDependent(...)

This method creates a RateDependent object.

Path

mdb.models[name].materials[name].crushableFoam.RateDependent
mdb.models[name].materials[name].druckerPrager.RateDependent
mdb.models[name].materials[name].plastic.RateDependent
session.odbs[name].materials[name].crushableFoam.RateDependent
session.odbs[name].materials[name].druckerPrager.RateDependent
session.odbs[name].materials[name].plastic.RateDependent

Required arguments

table

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

Optional arguments

type

A SymbolicConstant specifying the type of rate-dependent data. Possible values are POWER_LAW, YIELD_RATIO, and JOHNSON_COOK. The default value is POWER_LAW.

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

If type=POWER_LAW, the table data specify the following:

  • D.

  • n.

  • 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.

If type=YIELD_RATIO, the table data specify the following:

  • Yield stress ratio, R=σ¯/σ0.

  • Equivalent plastic strain rate, ε¯˙p⁢l.

  • 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.

If type=JOHNSON_COOK, the table data specify the following:

  • C.

  • ε˙0.

Return value

A RateDependent object.

Exceptions

RangeError.

setValues(...)

This method modifies the RateDependent object.

Required arguments

None.

Optional arguments

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

Return value

None.

Exceptions

RangeError.

Members

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