29.5 BrittleCracking object

The BrittleCracking object specifies cracking and postcracking properties for the brittle cracking material model.

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


29.5.1 BrittleCracking(...)

This method creates a BrittleCracking object.

Path
mdb.models[name].materials[name].BrittleCracking
session.odbs[name].materials[name].BrittleCracking

Required argument

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.

type

A SymbolicConstant specifying the type of postcracking behavior. Possible values are STRAIN, DISPLACEMENT, and GFI. The default value is STRAIN.

Table data

If type=STRAIN the table data specify the following:

  • Remaining direct stress after cracking.

  • Direct cracking strain.

  • 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=DISPLACEMENT the table data specify the following:
  • Remaining direct stress after cracking.

  • Direct cracking displacement.

  • 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=GFI the table data specify the following:
  • Failure stress.

  • Mode I fracture energy.

  • 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 BrittleCracking object.

Exceptions

None.


29.5.2 setValues(...)

This method modifies the BrittleCracking object.

Required arguments

None.

Optional arguments

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

Return value

None

Exceptions

None.


29.5.3  Members

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

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

brittleShear

A BrittleShear object.

brittleFailure

A BrittleFailure object.


29.5.4  Corresponding analysis keywords

*BRITTLE CRACKING