Failure FeCrAl

Failure model for FeCrAl cladding, with an option for the failure criterion based on the ultimate tensile stress or the failure criterion based on the temperature

warning:Deprecated Solid Mechanics Material

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

Description

The failure model for FeCrAl cladding, FailureFeCrAl, checks whether the hoop stress has exceeded the ultimate tensile strength (UTS). This model calculates the UTS as a function of temperature based upon experimental data by Yamamoto et al. (2015). The data is obtained from Figure 10 in the reference. Table 1 shows the UTS values as a function of temperature. These tabulated values are treated as a PiecewiseLinear function of temperature. The minimum or maximum value for UTS is used if the temperature is outside the bounds presented here.

Table 1: Ultimate Tensile Strength as a Function of Temperature

Temp. Range (K)UTS (MPa)
294.738569.475
551.495543.205
644.048527.023
829.85288.826
1011.9565.373

Example Input Syntax


[./failure_fecral]
type = FailureFeCrAl
temperature = temp
hoop_stress = hoop_stress
[../]
(test/tests/fecral/failure/fecral_failure.i)

Input Parameters

C++ Type:std::vector

• hoop_stressHoop stress in cladding (Pa)

C++ Type:std::vector

Required Parameters

• comparedless_equalOptions for variable _compared_ to criteria: greater_than greater_equal less_equal less_than

Default:less_equal

C++ Type:MooseEnum

Description:Options for variable _compared_ to criteria: greater_than greater_equal less_equal less_than

• 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.

• function_criteriaFunction name providing criteria value.

C++ Type:FunctionName

Description:Function name providing criteria value.

• constant_criteria0Numerical value providing criteria value.

Default:0

C++ Type:double

Description:Numerical value providing criteria value.

• 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

• variable_checkVariable name which is compared to criteria. Example: Var < 0, true=failed

C++ Type:std::vector

Description:Variable name which is compared to criteria. Example: Var < 0, true=failed

• 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

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

• 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

References

1. Y. Yamamoto, B.A. Pint, K.A. Terrani, K.G. Field, Y. Yang, and L.L. Snead. Development and property evaluation of nuclear grade wrought FeCrAl fuel cladding for light water reactors. Journal of Nuclear Materials, 467:703â€“716, 2015.[BibTeX]