RateDependent object

The RateDependent object defines a rate-dependent viscoplastic model.

The following topics are discussed:

Access

materialApi.materials()[name].crushableFoam().rateDependent()
materialApi.materials()[name].druckerPrager().rateDependent()
materialApi.materials()[name].plastic().rateDependent()

RateDependent(...)

This method creates a RateDependent object.

Path

materialApi.materials()[name].crushableFoam().RateDependent
materialApi.materials()[name].druckerPrager().RateDependent
materialApi.materials()[name].plastic().RateDependent

Prototype

odb_RateDependent&
RateDependent(const odb_SequenceSequenceDouble& table,
              const odb_String& type,
              bool temperatureDependency,
              int dependencies);

Required arguments

table

An odb_SequenceSequenceDouble specifying the items described below.

Optional arguments

type

An odb_String 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 false.

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¯˙pl.

  • 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.

Members

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

Corresponding analysis keywords