Irradiation-induced Strain in PyC

Model that tracks the irradiation-induced strain in pyrolytic carbon

warning:Deprecated Solid Mechanics Material

The functionality of this solid mechanics material is being replaced in the TensorMechanics system by [PyCIrradiationGrowthEigenstrain].

Description

Pyrolitic carbon experiences irradiation-induced strain which is a function of fluence. This strain is calculated in PyCIrradiationStrain. For low-density pyrolitic carbon, such as that used in the buffer layer of a TRISO fuel particle, the irradiation strain is given by Petti et al. (2004) as (1) where is in units of and , the fluence, is in units of .

For dense pyrolitic carbon, the irradiation strain differs in the radial and tangential directions (Petti et al., 2004) of a TRISO particle: (2)

Example Input Syntax


[./PyCDense]
  type = PyCIrradiationStrain
  block = 1
  fluence = fluence
  pyc_type = dense
[../]
(test/tests/pyc_irr_strain/PyCIrrStrnDenseRZ.i)

Input Parameters

  • fluenceCoupled fluence

    C++ Type:std::vector

    Description:Coupled fluence

Required Parameters

  • boundaryThe list of boundary IDs from the mesh where this boundary condition applies

    C++ Type:std::vector

    Description:The list of boundary IDs from the mesh where this boundary condition applies

  • computeTrueWhen false, MOOSE will not call compute methods on this material. The user must call computeProperties() after retrieving the Material via MaterialPropertyInterface::getMaterial(). Non-computed Materials are not sorted for dependencies.

    Default:True

    C++ Type:bool

    Description:When false, MOOSE will not call compute methods on this material. The user must call computeProperties() after retrieving the Material via MaterialPropertyInterface::getMaterial(). Non-computed Materials are not sorted for dependencies.

  • blockThe list of block ids (SubdomainID) that this object will be applied

    C++ Type:std::vector

    Description:The list of block ids (SubdomainID) that this object will be applied

  • pyc_typebufferType of PyC (buffer or dense)

    Default:buffer

    C++ Type:MooseEnum

    Description:Type of PyC (buffer or dense)

Optional Parameters

  • enableTrueSet the enabled status of the MooseObject.

    Default:True

    C++ Type:bool

    Description:Set the enabled status of the MooseObject.

  • use_displaced_meshFalseWhether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.

    Default:False

    C++ Type:bool

    Description:Whether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.

  • control_tagsAdds user-defined labels for accessing object parameters via control logic.

    C++ Type:std::vector

    Description:Adds user-defined labels for accessing object parameters via control logic.

  • seed0The seed for the master random number generator

    Default:0

    C++ Type:unsigned int

    Description:The seed for the master random number generator

  • implicitTrueDetermines whether this object is calculated using an implicit or explicit form

    Default:True

    C++ Type:bool

    Description:Determines whether this object is calculated using an implicit or explicit form

  • constant_onNONEWhen ELEMENT, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps.When SUBDOMAIN, MOOSE will only call computeSubdomainProperties() for the 0th quadrature point, and then copy that value to the other qps. Evaluations on element qps will be skipped

    Default:NONE

    C++ Type:MooseEnum

    Description:When ELEMENT, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps.When SUBDOMAIN, MOOSE will only call computeSubdomainProperties() for the 0th quadrature point, and then copy that value to the other qps. Evaluations on element qps will be skipped

Advanced Parameters

  • output_propertiesList of material properties, from this material, to output (outputs must also be defined to an output type)

    C++ Type:std::vector

    Description:List of material properties, from this material, to output (outputs must also be defined to an output type)

  • outputsnone Vector of output names were you would like to restrict the output of variables(s) associated with this object

    Default:none

    C++ Type:std::vector

    Description:Vector of output names were you would like to restrict the output of variables(s) associated with this object

Outputs Parameters

Input Files

References

  1. D. Petti, P. Martin, M. Phelip, and R. Ballinger. Development of improved models and designs for coated-particle gas reactor fuels. Technical Report INL/EXT-05-02615, Idaho National Laboratory, December 2004.[BibTeX]