LineSegmentCutSetUserObject

Creates a UserObject for a line segment cut on 2D meshes for XFEM

The LineSegmentCutSetUserObject defines a set of line segment cuts for XFEM to make on a 2 dimensional mesh. The cut_data parameter consists of entries each with a length of six Real values (the entries are not separate but rather the length of the cut_data vector must be a multiple of six). Each set of six values in cut_data prescribes a line segment cut: start point x, start point y, end point x, end point y, start cut time, end cut time. The object checks to ensure that the length of cut_data is a multiple of six. Provided that the start cut time and end cut time values are different, the cut will lenghten by at each timestep from start cut time until the specified end cut time. As in the LineSegmentCutUserObject, scaling and translation are available via optional parameters and apply to all applicable components of cut_data.

Example Input Syntax

[UserObjects]
  [./line_seg_cut_set_uo]
    type = LineSegmentCutSetUserObject
    cut_data = '-1.0000e-10   6.6340e-01   6.6340e-01  -1.0000e-10  0.0  1.0
                 3.3120e-01   3.3200e-01   1.0001e+00   3.3200e-01  1.0  2.0'
  [../]
[]
(modules/xfem/test/tests/second_order_elements/square_branch_quad9_2d.i)

Input Parameters

  • cut_dataVector of Real values providing cut information

    C++ Type:std::vector

    Options:

    Description:Vector of Real values providing cut information

Required Parameters

  • cut_translateX,Y translations for geometric cuts

    C++ Type:std::vector

    Options:

    Description:X,Y translations for geometric cuts

  • cut_scaleX,Y scale factors for geometric cuts

    C++ Type:std::vector

    Options:

    Description:X,Y scale factors for geometric cuts

  • heal_alwaysFalseHeal previous cuts at every time step

    Default:False

    C++ Type:bool

    Options:

    Description:Heal previous cuts at every time step

  • time_start_cut0Start time of geometric cut propagation

    Default:0

    C++ Type:double

    Options:

    Description:Start time of geometric cut propagation

  • time_end_cut0End time of geometric cut propagation

    Default:0

    C++ Type:double

    Options:

    Description:End time of geometric cut propagation

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

    C++ Type:std::vector

    Options:

    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

    Options:

    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

    Options:

    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

    Options:

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

  • allow_duplicate_execution_on_initialFalseIn the case where this UserObject is depended upon by an initial condition, allow it to be executed twice during the initial setup (once before the IC and again after mesh adaptivity (if applicable).

    Default:False

    C++ Type:bool

    Options:

    Description:In the case where this UserObject is depended upon by an initial condition, allow it to be executed twice during the initial setup (once before the IC and again after mesh adaptivity (if applicable).

  • seed0The seed for the master random number generator

    Default:0

    C++ Type:unsigned int

    Options:

    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

    Options:

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

Advanced Parameters

Input Files

Child Objects

References