- cut_dataVector of Real values providing cut information
C++ Type:std::vector<double>
Controllable:No
Description:Vector of Real values providing cut information
LineSegmentCutUserObject
Creates a UserObject for a line segment cut on 2D meshes for XFEM
Overview
The LineSegmentCutUserObject defines a line segment cut for XFEM to make on a 2 dimensional mesh. The start and end points of the line segment are defined in cut_data as a vector of four Real values: start point x, start point y, end point x, end point y. By default, the entire cut specified is performed at . Propogation of the cut may be prescribed along the line segment by specifying the time_start_cut and time_end_cut parameters in simulation time. The cut will lengthen by at each timestep from time_start_cut until time_end_cut. There are also options to scale and translate the points given in cut data. The scale and translation of the x and y coordinates must be specified separately, and if specified, the scale and translation are applied to both start and end points.
Example Input Syntax
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.35 1.0 0.35 0.2'
time_start_cut = 0.0
time_end_cut = 2.0
[../]
[]
Input Parameters
- blockThe list of blocks (ids or names) that this object will be applied
C++ Type:std::vector<SubdomainName>
Controllable:No
Description:The list of blocks (ids or names) that this object will be applied
- cut_scaleX,Y scale factors for geometric cuts
C++ Type:std::vector<double>
Controllable:No
Description:X,Y scale factors for geometric cuts
- cut_translateX,Y translations for geometric cuts
C++ Type:std::vector<double>
Controllable:No
Description:X,Y translations for geometric cuts
- execute_onXFEM_MARKThe list of flag(s) indicating when this object should be executed, the available options include NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM, ALWAYS, XFEM_MARK.
Default:XFEM_MARK
C++ Type:ExecFlagEnum
Options:NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM, ALWAYS, XFEM_MARK
Controllable:No
Description:The list of flag(s) indicating when this object should be executed, the available options include NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM, ALWAYS, XFEM_MARK.
- heal_alwaysFalseHeal previous cuts at every time step
Default:False
C++ Type:bool
Controllable:No
Description:Heal previous cuts at every time step
- prop_getter_suffixAn optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
C++ Type:MaterialPropertyName
Controllable:No
Description:An optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
- time_end_cut0End time of geometric cut propagation
Default:0
C++ Type:double
Controllable:No
Description:End time of geometric cut propagation
- time_start_cut0Start time of geometric cut propagation
Default:0
C++ Type:double
Controllable:No
Description:Start time of geometric cut propagation
Optional Parameters
- 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
Controllable:No
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).
- control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector<std::string>
Controllable:No
Description:Adds user-defined labels for accessing object parameters via control logic.
- enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Controllable:Yes
Description:Set the enabled status of the MooseObject.
- force_postauxFalseForces the UserObject to be executed in POSTAUX
Default:False
C++ Type:bool
Controllable:No
Description:Forces the UserObject to be executed in POSTAUX
- force_preauxFalseForces the UserObject to be executed in PREAUX
Default:False
C++ Type:bool
Controllable:No
Description:Forces the UserObject to be executed in PREAUX
- force_preicFalseForces the UserObject to be executed in PREIC during initial setup
Default:False
C++ Type:bool
Controllable:No
Description:Forces the UserObject to be executed in PREIC during initial setup
- implicitTrueDetermines whether this object is calculated using an implicit or explicit form
Default:True
C++ Type:bool
Controllable:No
Description:Determines whether this object is calculated using an implicit or explicit form
- seed0The seed for the master random number generator
Default:0
C++ Type:unsigned int
Controllable:No
Description:The seed for the master random number generator
- 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
Controllable:No
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.
Advanced Parameters
Input Files
- (modules/xfem/test/tests/moment_fitting/solid_mechanics_moment_fitting.i)
- (modules/combined/test/tests/heat_conduction_xfem/heat.i)
- (modules/xfem/test/tests/diffusion_xfem/diffusion_flux_bc.i)
- (modules/xfem/test/tests/diffusion_xfem/diffusion.i)
- (modules/xfem/test/tests/single_var_constraint_2d/stationary_equal.i)
- (modules/xfem/test/tests/single_var_constraint_2d/stationary_jump.i)
- (modules/xfem/test/tests/solid_mechanics_basic/crack_propagation_2d.i)
- (modules/xfem/test/tests/pressure_bc/inclined_edge_2d_pressure.i)
- (modules/xfem/test/tests/second_order_elements/diffusion_2d_quad8.i)
- (modules/xfem/test/tests/single_var_constraint_2d/propagating_1field.i)
- (modules/xfem/test/tests/single_var_constraint_2d/stationary_jump_fluxjump.i)
- (modules/xfem/test/tests/single_var_constraint_2d/propagating_2field_1constraint.i)
- (modules/xfem/test/tests/pressure_bc/edge_2d_pressure.i)
- (modules/xfem/test/tests/solid_mechanics_basic/square_branch_quad_2d.i)
- (modules/xfem/test/tests/corner_nodes_cut/corner_edge_cut.i)
- (modules/combined/examples/xfem/xfem_mechanics_prescribed_growth.i)
- (modules/xfem/test/tests/solid_mechanics_basic/square_branch_tri_2d.i)
- (modules/xfem/test/tests/moment_fitting/diffusion_moment_fitting_six_points.i)
- (modules/xfem/test/tests/crack_tip_enrichment/edge_crack_2d.i)
- (modules/xfem/test/tests/single_var_constraint_2d/stationary_fluxjump_func.i)
- (modules/xfem/test/tests/single_var_constraint_2d/equal_value.i)
- (modules/xfem/test/tests/moment_fitting/diffusion_moment_fitting_four_points.i)
- (modules/xfem/test/tests/corner_nodes_cut/corner_node_cut_twice.i)
- (modules/xfem/test/tests/corner_nodes_cut/corner_node_cut.i)
- (modules/xfem/test/tests/pressure_bc/2d_pressure_displaced_mesh.i)
- (modules/xfem/test/tests/single_var_constraint_2d/stationary_fluxjump.i)
- (modules/combined/examples/xfem/xfem_thermomechanics_stress_growth.i)
- (modules/xfem/test/tests/mechanical_constraint/glued_penalty.i)
- (modules/xfem/test/tests/side_integral/side_integral.i)
- (modules/xfem/test/tests/single_var_constraint_2d/stationary_jump_func.i)
- (modules/xfem/test/tests/corner_nodes_cut/notch.i)
- (modules/xfem/test/tests/single_var_constraint_2d/propagating_2field_2constraint.i)
- (modules/xfem/test/tests/second_order_elements/diffusion_2d_tri6.i)
- (modules/xfem/test/tests/solid_mechanics_basic/test.i)
- (modules/xfem/test/tests/solid_mechanics_basic/test_crack_counter.i)
- (modules/xfem/test/tests/second_order_elements/diffusion_2d_quad9.i)
(modules/xfem/test/tests/second_order_elements/diffusion_2d_quad8.i)
[GlobalParams]
order = SECOND
family = LAGRANGE
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 3
ny = 4
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD8
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.35 1.0 0.35 0.2'
time_start_cut = 0.0
time_end_cut = 2.0
[../]
[]
[Variables]
[./u]
[../]
[]
[Functions]
[./u_left]
type = PiecewiseLinear
x = '0 2'
y = '0 0.1'
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[BCs]
# Define boundary conditions
[./left_u]
type = FunctionDirichletBC
variable = u
boundary = 3
function = u_left
[../]
[./right_u]
type = DirichletBC
variable = u
boundary = 1
value = 0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
line_search = 'none'
l_tol = 1e-3
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
end_time = 2.0
[]
[Outputs]
interval = 1
execute_on = timestep_end
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/moment_fitting/solid_mechanics_moment_fitting.i)
# Test for a mechanics problem which uses four points moment_fitting approach.
# See this paper (https://doi.org/10.1007/s00466-018-1544-2) for more details about moment_fitting approach.
[GlobalParams]
order = FIRST
family = LAGRANGE
displacements = 'disp_x disp_y'
volumetric_locking_correction = true
[]
[XFEM]
qrule = moment_fitting
output_cut_plane = true
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 10
ny = 10
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[UserObjects]
[./line_seg_cut_uo0]
type = LineSegmentCutUserObject
cut_data = '0.0000e+00 6.3330e-01 3.9000e-01 6.3330e-01'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[./line_seg_cut_uo1]
type = LineSegmentCutUserObject
cut_data = '3.9000e-01 6.3330e-01 6.8000e-01 6.3330e-01'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = SMALL
[../]
[]
[Functions]
[./right_trac_x]
type = ParsedFunction
value = '-(t*M*y)/I'
vars = 'M E I'
vals = '2e4 1e6 0.666666667'
[../]
[./bottom_disp_y]
type = ParsedFunction
value = '((t*M)/(2*E*I))*(1-nu*nu)*(x*x-0.25*l*l)'
vars = 'M E I l nu'
vals = '2e4 1e6 0.666666667 2.0 0.3'
[../]
[./soln_x]
type = ParsedFunction
value = '-(M/(E*I))*(1-nu*nu)*x*y'
vars = 'M E I nu'
vals = '2e4 1e6 0.666666667 0.3'
[../]
[./soln_y]
type = ParsedFunction
value = '(M/(2*E*I))*(1-nu*nu)*(x*x-0.25*l*l+(nu/(1-nu))*y*y)'
vars = 'M E I l nu'
vals = '2e4 1e6 0.666666667 2.0 0.3'
[../]
[]
[BCs]
[./right_x]
type = FunctionNeumannBC
boundary = 1
variable = disp_x
function = right_trac_x
[../]
[./bottom_y]
type = FunctionDirichletBC
boundary = 0
variable = disp_y
function = bottom_disp_y
[../]
[./left_x]
type = DirichletBC
boundary = 3
variable = disp_x
value = 0.0
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 1e6
poissons_ratio = 0.3
[../]
[./stress]
type = ComputeLinearElasticStress
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = '201 hypre boomeramg 8'
line_search = 'none'
# [./Quadrature]
# order = FOURTH
# type = MONOMIAL
# [../]
[./Predictor]
type = SimplePredictor
scale = 1.0
[../]
# controls for linear iterations
l_max_its = 100
l_tol = 1e-2
# controls for nonlinear iterations
nl_max_its = 15
nl_rel_tol = 1e-16
nl_abs_tol = 1e-10
# time control
start_time = 0.0
dt = 0.5
end_time = 1.0
num_steps = 5000
[]
[Postprocessors]
[./numel]
type = NumElems
execute_on = timestep_end
[../]
[./integral]
type = ElementVectorL2Error
var_x = disp_x
var_y = disp_y
function_x = soln_x
function_y = soln_y
execute_on = timestep_end
[../]
[]
[Outputs]
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/combined/test/tests/heat_conduction_xfem/heat.i)
[GlobalParams]
order = FIRST
family = LAGRANGE
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 5
ny = 6
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[XFEM]
geometric_cut_userobjects = 'line_seg_cut_uo'
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.5 1.0 0.5 0.5'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[]
[Variables]
[./temp]
initial_condition = 300.0 # set initial temp to ambient
[../]
[]
[Functions]
[./temp_left]
type = PiecewiseLinear
x = '0 2'
y = '0 0.1'
[../]
[]
[Kernels]
[./heat] # gradient term in heat conduction equation
type = HeatConduction
variable = temp
[../]
[]
[BCs]
# Define boundary conditions
[./left_temp]
type = FunctionDirichletBC
variable = temp
boundary = 3
function = temp_left
[../]
[./right_temp]
type = DirichletBC
variable = temp
boundary = 1
value = 0
[../]
[]
[Materials]
[./fuel_thermal]
type = HeatConductionMaterial
block = 0
temp = temp
thermal_conductivity = 5.0
specific_heat = 1.0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = '201 hypre boomeramg 8'
line_search = 'none'
l_max_its = 100
l_tol = 8e-3
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
end_time = 2.0
num_steps = 2
[]
[Outputs]
# Define output file(s)
file_base = heat_out
interval = 1
execute_on = timestep_end
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/diffusion_xfem/diffusion_flux_bc.i)
# The Neumann BC is applied on the cutted boundary.
# The solution is not correct because so far integration along the cutted element faces is not right.
# To correct this, we need to re-calcuate the weights based on area/volume fraction. This will be implemented soon.
[GlobalParams]
order = FIRST
family = LAGRANGE
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 5
ny = 6
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.5 1.0 0.5 0.5'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[]
[Variables]
[./u]
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[BCs]
# Define boundary conditions
[./top_u]
type = NeumannBC
variable = u
boundary = 2
value = -1.0
[../]
[./bottom]
type = DirichletBC
variable = u
boundary = 0
value = 0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
line_search = 'none'
l_tol = 1e-3
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
end_time = 1.0
[]
[Outputs]
interval = 1
execute_on = timestep_end
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/diffusion_xfem/diffusion.i)
[GlobalParams]
order = FIRST
family = LAGRANGE
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 5
ny = 6
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.5 1.0 0.5 0.5'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[]
[Variables]
[./u]
[../]
[]
[Functions]
[./u_left]
type = PiecewiseLinear
x = '0 2'
y = '0 0.1'
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[BCs]
# Define boundary conditions
[./left_u]
type = FunctionDirichletBC
variable = u
boundary = 3
function = u_left
[../]
[./right_u]
type = DirichletBC
variable = u
boundary = 1
value = 0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
line_search = 'none'
l_tol = 1e-3
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
end_time = 2.0
[]
[Outputs]
interval = 1
execute_on = timestep_end
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/single_var_constraint_2d/stationary_equal.i)
[GlobalParams]
order = FIRST
family = LAGRANGE
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 5
ny = 5
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.5 1.0 0.5 0.0'
[../]
[]
[Variables]
[./u]
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[Constraints]
[./xfem_constraint]
type = XFEMSingleVariableConstraint
variable = u
jump = 0
jump_flux = 0
geometric_cut_userobject = 'line_seg_cut_uo'
[../]
[]
[BCs]
# Define boundary conditions
[./left_u]
type = DirichletBC
variable = u
boundary = 3
value = 1
[../]
[./right_u]
type = DirichletBC
variable = u
boundary = 1
value = 0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
line_search = 'none'
l_tol = 1e-3
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
end_time = 2.0
[]
[Outputs]
interval = 1
execute_on = timestep_end
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/single_var_constraint_2d/stationary_jump.i)
[GlobalParams]
order = FIRST
family = LAGRANGE
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 5
ny = 5
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.5 1.0 0.5 0.0'
[../]
[]
[Variables]
[./u]
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[Constraints]
[./xfem_constraint]
type = XFEMSingleVariableConstraint
variable = u
jump = 0.5
jump_flux = 0
geometric_cut_userobject = 'line_seg_cut_uo'
[../]
[]
[BCs]
# Define boundary conditions
[./left_u]
type = DirichletBC
variable = u
boundary = 3
value = 1
[../]
[./right_u]
type = DirichletBC
variable = u
boundary = 1
value = 0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
line_search = 'none'
l_tol = 1e-3
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
end_time = 2.0
[]
[Outputs]
interval = 1
execute_on = timestep_end
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/solid_mechanics_basic/crack_propagation_2d.i)
[GlobalParams]
displacements = 'disp_x disp_y'
volumetric_locking_correction = true
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
use_crack_growth_increment = true
crack_growth_increment = 0.2
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 11
ny = 11
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '1.0 0.5 0.7 0.5'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[./xfem_marker_uo]
type = XFEMRankTwoTensorMarkerUserObject
execute_on = timestep_end
tensor = stress
scalar_type = MaxPrincipal
threshold = 5e+1
average = true
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = FINITE
planar_formulation = plane_strain
add_variables = true
[../]
[]
[Functions]
[./pull]
type = PiecewiseLinear
x='0 50 100'
y='0 0.02 0.1'
[../]
[]
[BCs]
[./bottomx]
type = DirichletBC
boundary = bottom
variable = disp_x
value = 0.0
[../]
[./bottomy]
type = DirichletBC
boundary = bottom
variable = disp_y
value = 0.0
[../]
[./topx]
type = DirichletBC
boundary = top
variable = disp_x
value = 0.0
[../]
[./topy]
type = FunctionDirichletBC
boundary = top
variable = disp_y
function = pull
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 1e6
poissons_ratio = 0.3
block = 0
[../]
[./_elastic_strain]
type = ComputeFiniteStrainElasticStress
block = 0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = '201 hypre boomeramg 8'
line_search = 'none'
[./Predictor]
type = SimplePredictor
scale = 1.0
[../]
# controls for linear iterations
l_max_its = 100
l_tol = 1e-2
# controls for nonlinear iterations
nl_max_its = 15
nl_rel_tol = 1e-14
nl_abs_tol = 1e-9
# time control
start_time = 0.0
dt = 1.0
end_time = 2.0
num_steps = 5000
max_xfem_update = 1
[]
[Outputs]
file_base = crack_propagation_2d_out
exodus = true
execute_on = timestep_end
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/pressure_bc/inclined_edge_2d_pressure.i)
[GlobalParams]
order = FIRST
family = LAGRANGE
displacements = 'disp_x disp_y'
volumetric_locking_correction = False
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 10
ny = 9
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.0 0.33 0.5 0.67'
[../]
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = SMALL
generate_output = 'stress_xx stress_yy'
[../]
[]
[Functions]
[./pressure]
type = PiecewiseLinear
x = '0 1.0 2.0'
y = '0 500 1000'
[../]
[]
[BCs]
[./bottom_y]
type = DirichletBC
boundary = 0
variable = disp_y
value = 0.0
[../]
[./top_y]
type = DirichletBC
boundary = 2
variable = disp_y
value = 0.0
[../]
[./bottom_x]
type = DirichletBC
boundary = 0
variable = disp_x
value = 0.0
[../]
[]
[DiracKernels]
[./pressure_x]
type = XFEMPressure
variable = disp_x
component = 0
function = pressure
[../]
[./pressure_y]
type = XFEMPressure
variable = disp_y
component = 1
function = pressure
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 1e6
poissons_ratio = 0.3
[../]
[./stress]
type = ComputeLinearElasticStress
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = '201 hypre boomeramg 8'
line_search = 'none'
[./Predictor]
type = SimplePredictor
scale = 1.0
[../]
# controls for linear iterations
l_max_its = 100
l_tol = 1e-2
# controls for nonlinear iterations
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-12
# time control
start_time = 0.0
dt = 1
end_time = 2
[]
[Outputs]
file_base = inclined_edge_2d_pressure_out
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/second_order_elements/diffusion_2d_quad8.i)
[GlobalParams]
order = SECOND
family = LAGRANGE
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 3
ny = 4
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD8
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.35 1.0 0.35 0.2'
time_start_cut = 0.0
time_end_cut = 2.0
[../]
[]
[Variables]
[./u]
[../]
[]
[Functions]
[./u_left]
type = PiecewiseLinear
x = '0 2'
y = '0 0.1'
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[BCs]
# Define boundary conditions
[./left_u]
type = FunctionDirichletBC
variable = u
boundary = 3
function = u_left
[../]
[./right_u]
type = DirichletBC
variable = u
boundary = 1
value = 0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
line_search = 'none'
l_tol = 1e-3
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
end_time = 2.0
[]
[Outputs]
interval = 1
execute_on = timestep_end
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/single_var_constraint_2d/propagating_1field.i)
[GlobalParams]
order = FIRST
family = LAGRANGE
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 5
ny = 5
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.5 1.0 0.5 0.0'
time_start_cut = 0.0
time_end_cut = 2.0
[../]
[]
[Variables]
[./u]
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[Constraints]
[./xfem_constraint]
type = XFEMSingleVariableConstraint
variable = u
jump = 0
jump_flux = 0
geometric_cut_userobject = 'line_seg_cut_uo'
[../]
[]
[BCs]
# Define boundary conditions
[./left_u]
type = DirichletBC
variable = u
boundary = 3
value = 1
[../]
[./right_u]
type = DirichletBC
variable = u
boundary = 1
value = 0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
line_search = 'none'
l_tol = 1e-3
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
end_time = 2.0
[]
[Outputs]
interval = 1
execute_on = timestep_end
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/single_var_constraint_2d/stationary_jump_fluxjump.i)
[GlobalParams]
order = FIRST
family = LAGRANGE
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 5
ny = 5
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.5 1.0 0.5 0.0'
[../]
[]
[Variables]
[./u]
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[Constraints]
[./xfem_constraint]
type = XFEMSingleVariableConstraint
variable = u
jump = 0.5
jump_flux = 1
geometric_cut_userobject = 'line_seg_cut_uo'
[../]
[]
[BCs]
# Define boundary conditions
[./left_u]
type = DirichletBC
variable = u
boundary = 3
value = 1
[../]
[./right_u]
type = DirichletBC
variable = u
boundary = 1
value = 0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
line_search = 'none'
l_tol = 1e-3
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
end_time = 2.0
[]
[Outputs]
interval = 1
execute_on = timestep_end
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/single_var_constraint_2d/propagating_2field_1constraint.i)
[GlobalParams]
order = FIRST
family = LAGRANGE
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 5
ny = 5
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.5 1.0 0.5 0.0'
time_start_cut = 0.0
time_end_cut = 2.0
[../]
[]
[Variables]
[./u]
[../]
[./v]
[../]
[]
[Kernels]
[./diff_u]
type = Diffusion
variable = u
[../]
[./diff_v]
type = Diffusion
variable = v
[../]
[]
[Constraints]
[./xfem_constraint]
type = XFEMSingleVariableConstraint
variable = u
jump = 0
jump_flux = 0
geometric_cut_userobject = 'line_seg_cut_uo'
[../]
[]
[BCs]
# Define boundary conditions
[./left_u]
type = DirichletBC
variable = u
boundary = 3
value = 1
[../]
[./right_u]
type = DirichletBC
variable = u
boundary = 1
value = 0
[../]
[./left_v]
type = DirichletBC
variable = v
boundary = 3
value = 1
[../]
[./right_v]
type = DirichletBC
variable = v
boundary = 1
value = 0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
line_search = 'none'
l_tol = 1e-3
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
end_time = 2.0
[]
[Outputs]
interval = 1
execute_on = timestep_end
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/pressure_bc/edge_2d_pressure.i)
[GlobalParams]
order = FIRST
family = LAGRANGE
displacements = 'disp_x disp_y'
volumetric_locking_correction = False
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 10
ny = 9
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.0 0.5 0.5 0.5'
[../]
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = SMALL
generate_output = 'stress_xx stress_yy'
[../]
[]
[Functions]
[./pressure]
type = PiecewiseLinear
x = '0 1.0 2.0'
y = '0 500 1000'
[../]
[]
[BCs]
[./bottom_y]
type = DirichletBC
boundary = 0
variable = disp_y
value = 0.0
[../]
[./top_y]
type = DirichletBC
boundary = 2
variable = disp_y
value = 0.0
[../]
[./bottom_x]
type = DirichletBC
boundary = 0
variable = disp_x
value = 0.0
[../]
[]
[DiracKernels]
[./pressure_x]
type = XFEMPressure
variable = disp_x
component = 0
function = pressure
[../]
[./pressure_y]
type = XFEMPressure
variable = disp_y
component = 1
function = pressure
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 1e6
poissons_ratio = 0.3
[../]
[./stress]
type = ComputeLinearElasticStress
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = '201 hypre boomeramg 8'
line_search = 'none'
[./Predictor]
type = SimplePredictor
scale = 1.0
[../]
# controls for linear iterations
l_max_its = 100
l_tol = 1e-2
# controls for nonlinear iterations
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-12
# time control
start_time = 0.0
dt = 1
end_time = 2
[]
[Outputs]
file_base = edge_2d_pressure_out
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/solid_mechanics_basic/square_branch_quad_2d.i)
[GlobalParams]
displacements = 'disp_x disp_y'
volumetric_locking_correction = true
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 10
ny = 10
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[UserObjects]
[./line_seg_cut_uo0]
type = LineSegmentCutUserObject
cut_data = '-1.0000e-10 6.6340e-01 6.6340e-01 -1.0000e-10'
time_start_cut = 0.0
time_end_cut = 1.0
[../]
[./line_seg_cut_uo1]
type = LineSegmentCutUserObject
cut_data = '3.3120e-01 3.3200e-01 1.0001e+00 3.3200e-01'
time_start_cut = 1.0
time_end_cut = 2.0
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = SMALL
planar_formulation = PLANE_STRAIN
add_variables = true
[../]
[]
[Functions]
[./right_disp_x]
type = PiecewiseLinear
x = '0 1.0 2.0 3.0'
y = '0 0.005 0.01 0.01'
[../]
[./top_disp_y]
type = PiecewiseLinear
x = '0 1.0 2.0 3.0'
y = '0 0.005 0.01 0.01'
[../]
[]
[BCs]
[./right_x]
type = FunctionDirichletBC
boundary = 1
variable = disp_x
function = right_disp_x
[../]
[./top_y]
type = FunctionDirichletBC
boundary = 2
variable = disp_y
function = top_disp_y
[../]
[./bottom_y]
type = DirichletBC
boundary = 0
variable = disp_y
value = 0.0
[../]
[./left_x]
type = DirichletBC
boundary = 3
variable = disp_x
value = 0.0
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 1e6
poissons_ratio = 0.3
[../]
[./stress]
type = ComputeLinearElasticStress
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = '201 hypre boomeramg 8'
line_search = 'none'
[./Predictor]
type = SimplePredictor
scale = 1.0
[../]
# controls for linear iterations
l_max_its = 100
l_tol = 1e-2
# controls for nonlinear iterations
nl_max_its = 15
nl_rel_tol = 1e-16
nl_abs_tol = 1e-10
# time control
start_time = 0.0
dt = 1.0
end_time = 2.2
num_steps = 5000
[]
[Outputs]
file_base = square_branch_quad_2d_out
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/corner_nodes_cut/corner_edge_cut.i)
[GlobalParams]
order = FIRST
family = LAGRANGE
displacements = 'disp_x disp_y'
volumetric_locking_correction = true
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo1]
type = LineSegmentCutUserObject
cut_data = '-0.0 0.5 0.5 0.5'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[./line_seg_cut_uo2]
type = LineSegmentCutUserObject
cut_data = '0.5 0.5 1.0 0.7'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 10
ny = 10
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = SMALL
[../]
[]
[BCs]
[./top_x]
type = DirichletBC
boundary = 2
variable = disp_x
value = 0.0
[../]
[./top_y]
type = DirichletBC
boundary = 2
variable = disp_y
value = 0.1
[../]
[./bottom_y]
type = DirichletBC
boundary = 0
variable = disp_y
value = -0.1
[../]
[./bottom_x]
type = DirichletBC
boundary = 0
variable = disp_x
value = 0.0
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 1e6
poissons_ratio = 0.3
[../]
[./stress]
type = ComputeLinearElasticStress
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = '201 hypre boomeramg 8'
line_search = 'none'
[./Predictor]
type = SimplePredictor
scale = 1.0
[../]
# controls for linear iterations
l_max_its = 100
l_tol = 1e-2
# controls for nonlinear iterations
nl_max_its = 15
nl_rel_tol = 1e-16
nl_abs_tol = 1e-10
# time control
start_time = 0.0
dt = 1.0
end_time = 1.0
[]
[Outputs]
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/combined/examples/xfem/xfem_mechanics_prescribed_growth.i)
# This is a demonstration of a simple mechanics simulation using XFEM
# to represent a single crack that is prescribed to propagate along
# a line over time.
[GlobalParams]
displacements = 'disp_x disp_y'
volumetric_locking_correction = true
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 11
ny = 11
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[XFEM]
geometric_cut_userobjects = 'line_seg_cut_uo'
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '1.0 0.5 0.1 0.5'
time_start_cut = 0.0
time_end_cut = 8.0
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = FINITE
planar_formulation = plane_strain
add_variables = true
[../]
[]
[Functions]
[./pull]
type = PiecewiseLinear
x='0 50'
y='0 0.02'
[../]
[]
[BCs]
[./bottomx]
type = DirichletBC
boundary = bottom
variable = disp_x
value = 0.0
[../]
[./bottomy]
type = DirichletBC
boundary = bottom
variable = disp_y
value = 0.0
[../]
[./topx]
type = DirichletBC
boundary = top
variable = disp_x
value = 0.0
[../]
[./topy]
type = FunctionDirichletBC
boundary = top
variable = disp_y
function = pull
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 1e6
poissons_ratio = 0.3
[../]
[./_elastic_strain]
type = ComputeFiniteStrainElasticStress
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = '201 hypre boomeramg 8'
line_search = 'none'
[./Predictor]
type = SimplePredictor
scale = 1.0
[../]
# controls for linear iterations
l_max_its = 100
l_tol = 1e-2
# controls for nonlinear iterations
nl_max_its = 15
nl_rel_tol = 1e-14
nl_abs_tol = 1e-9
# time control
start_time = 0.0
dt = 1.0
end_time = 10.0
max_xfem_update = 5
[]
[Outputs]
exodus = true
execute_on = timestep_end
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/solid_mechanics_basic/square_branch_tri_2d.i)
[GlobalParams]
displacements = 'disp_x disp_y'
volumetric_locking_correction = true
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 10
ny = 10
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = TRI3
[]
[UserObjects]
[./line_seg_cut_uo0]
type = LineSegmentCutUserObject
cut_data = '-1.0000e-10 6.6340e-01 6.6340e-01 -1.0000e-10'
time_start_cut = 0.0
time_end_cut = 1.0
[../]
[./line_seg_cut_uo1]
type = LineSegmentCutUserObject
cut_data = '3.3120e-01 3.3200e-01 1.0001e+00 3.3200e-01'
time_start_cut = 1.0
time_end_cut = 2.0
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = SMALL
planar_formulation = PLANE_STRAIN
add_variables = true
[../]
[]
[Functions]
[./right_disp_x]
type = PiecewiseLinear
x = '0 1.0 2.0 3.0'
y = '0 0.005 0.01 0.01'
[../]
[./top_disp_y]
type = PiecewiseLinear
x = '0 1.0 2.0 3.0'
y = '0 0.005 0.01 0.01'
[../]
[]
[BCs]
[./right_x]
type = FunctionDirichletBC
boundary = 1
variable = disp_x
function = right_disp_x
[../]
[./top_y]
type = FunctionDirichletBC
boundary = 2
variable = disp_y
function = top_disp_y
[../]
[./bottom_y]
type = DirichletBC
boundary = 0
variable = disp_y
value = 0.0
[../]
[./left_x]
type = DirichletBC
boundary = 3
variable = disp_x
value = 0.0
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 1e6
poissons_ratio = 0.3
[../]
[./stress]
type = ComputeLinearElasticStress
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = '201 hypre boomeramg 8'
line_search = 'none'
[./Predictor]
type = SimplePredictor
scale = 1.0
[../]
# controls for linear iterations
l_max_its = 100
l_tol = 1e-2
# controls for nonlinear iterations
nl_max_its = 15
nl_rel_tol = 1e-16
nl_abs_tol = 1e-10
# time control
start_time = 0.0
dt = 1.0
end_time = 2.2
num_steps = 5000
[]
[Outputs]
file_base = square_branch_tri_2d_out
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/moment_fitting/diffusion_moment_fitting_six_points.i)
# Test for a diffusion problem which uses six points moment_fitting approach.
# To use six points rule, add Quadrature block with order = FOURTH and type = MONOMIAL.
# See this paper (https://doi.org/10.1007/s00466-018-1544-2) for more details about moment_fitting approach.
[GlobalParams]
order = FIRST
family = LAGRANGE
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 5
ny = 6
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[XFEM]
geometric_cut_userobjects = 'line_seg_cut_uo'
qrule = moment_fitting
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.5 1.0 0.5 0.5'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[]
[Variables]
[./u]
[../]
[]
[Functions]
[./u_left]
type = PiecewiseLinear
x = '0 2'
y = '0 0.1'
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[BCs]
# Define boundary conditions
[./left_u]
type = FunctionDirichletBC
variable = u
boundary = 3
function = u_left
[../]
[./right_u]
type = DirichletBC
variable = u
boundary = 1
value = 0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
line_search = 'none'
[./Quadrature]
order = FOURTH
type = MONOMIAL
[../]
l_tol = 1e-3
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
end_time = 2.0
[]
[Outputs]
interval = 1
execute_on = timestep_end
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/crack_tip_enrichment/edge_crack_2d.i)
[XFEM]
qrule = volfrac
output_cut_plane = true
use_crack_tip_enrichment = true
crack_front_definition = crack_tip
enrichment_displacements = 'enrich1_x enrich2_x enrich3_x enrich4_x enrich1_y enrich2_y enrich3_y enrich4_y'
displacements = 'disp_x disp_y'
cut_off_boundary = all
cut_off_radius = 0.2
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.0 1.0 0.5 1.0'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[./crack_tip]
type = CrackFrontDefinition
crack_direction_method = CrackDirectionVector
crack_front_points = '0.5 1.0 0'
crack_direction_vector = '1 0 0'
2d = true
axis_2d = 2
[../]
[]
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 2
nx = 5
ny = 9
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 2.0
elem_type = QUAD4
[]
[./all_node]
type = BoundingBoxNodeSetGenerator
new_boundary = 'all'
top_right = '1 2 0'
bottom_left = '0 0 0'
input = gen
[../]
[./right_bottom_node]
type = ExtraNodesetGenerator
new_boundary = 'right_bottom_node'
coord = '1.0 0.0'
input = all_node
[../]
[./right_top_node]
type = ExtraNodesetGenerator
new_boundary = 'right_top_node'
coord = '1.0 2.0'
input = right_bottom_node
[../]
[]
[Variables]
[./disp_x]
order = FIRST
family = LAGRANGE
[../]
[./disp_y]
order = FIRST
family = LAGRANGE
[../]
[]
[AuxVariables]
[./saved_x]
[../]
[./saved_y]
[../]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./vonmises]
order = CONSTANT
family = MONOMIAL
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y'
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
execute_on = timestep_end
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
execute_on = timestep_end
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
execute_on = timestep_end
[../]
[./vonmises]
type = RankTwoScalarAux
rank_two_tensor = stress
variable = vonmises
scalar_type = vonmisesStress
execute_on = timestep_end
[../]
[]
[BCs]
[./top_y]
type = Pressure
variable = disp_y
boundary = top
factor = -1
displacements = 'disp_x disp_y'
[../]
[./bottom_y]
type = Pressure
variable = disp_y
boundary = bottom
factor = -1
displacements = 'disp_x disp_y'
[../]
[./fix_y]
type = DirichletBC
boundary = right_bottom_node
variable = disp_y
value = 0.0
[../]
[./fix_x]
type = DirichletBC
boundary = right_bottom_node
variable = disp_x
value = 0.0
[../]
[./fix_x2]
type = DirichletBC
boundary = right_top_node
variable = disp_x
value = 0.0
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 1e6
poissons_ratio = 0.3
[../]
[./strain]
type = ComputeCrackTipEnrichmentSmallStrain
displacements = 'disp_x disp_y'
crack_front_definition = crack_tip
enrichment_displacements = 'enrich1_x enrich2_x enrich3_x enrich4_x enrich1_y enrich2_y enrich3_y enrich4_y'
[../]
[./stress]
type = ComputeLinearElasticStress
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_factor_mat_solver_package'
petsc_options_value = 'lu superlu_dist'
line_search = 'none'
# Since we do not sub-triangularize the tip element,
# we need to use higher order quadrature rule to improve
# integration accuracy.
# Here second = SECOND is for regression test only.
# However, order = SIXTH is recommended.
[./Quadrature]
type = GAUSS
order = SECOND
[../]
[./Predictor]
type = SimplePredictor
scale = 1.0
[../]
# controls for linear iterations
l_max_its = 10
l_tol = 1e-4
# controls for nonlinear iterations
nl_max_its = 100
nl_rel_tol = 1e-12 #11
nl_abs_tol = 1e-12 #12
# time control
start_time = 0.0
dt = 1.0
end_time = 1.0
dtmin = 1.0
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Outputs]
file_base = edge_crack_2d_out
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/single_var_constraint_2d/stationary_fluxjump_func.i)
[GlobalParams]
order = FIRST
family = LAGRANGE
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 5
ny = 5
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.5 1.0 0.5 0.0'
[../]
[]
[Variables]
[./u]
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[Constraints]
[./xfem_constraint]
type = XFEMSingleVariableConstraint
variable = u
jump = 0
jump_flux = jump_flux_func
geometric_cut_userobject = 'line_seg_cut_uo'
[../]
[]
[Functions]
[./jump_flux_func]
type = ParsedFunction
value = '1'
[../]
[]
[BCs]
# Define boundary conditions
[./left_u]
type = DirichletBC
variable = u
boundary = 3
value = 1
[../]
[./right_u]
type = DirichletBC
variable = u
boundary = 1
value = 0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
line_search = 'none'
l_tol = 1e-3
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
end_time = 2.0
[]
[Outputs]
interval = 1
execute_on = timestep_end
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/single_var_constraint_2d/equal_value.i)
[GlobalParams]
order = FIRST
family = LAGRANGE
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 5
ny = 1
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.5 1.0 0.5 0.0'
[../]
[]
[Variables]
[./u]
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[Constraints]
[./xfem_constraint]
type = XFEMEqualValueAtInterface
geometric_cut_userobject = 'line_seg_cut_uo'
use_displaced_mesh = false
variable = u
value = 1
alpha = 1e5
[../]
[]
[BCs]
# Define boundary conditions
[./left_u]
type = DirichletBC
variable = u
boundary = 3
value = 1
[../]
[./right_u]
type = DirichletBC
variable = u
boundary = 1
value = 0
[../]
[]
[Executioner]
type = Steady
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
line_search = 'none'
l_tol = 1e-3
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
[]
[Outputs]
interval = 1
execute_on = timestep_end
exodus = true
perf_graph = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/moment_fitting/diffusion_moment_fitting_four_points.i)
# Test for a diffusion problem which uses four points moment_fitting approach.
# See this paper (https://doi.org/10.1007/s00466-018-1544-2) for more details about moment_fitting approach.
[GlobalParams]
order = FIRST
family = LAGRANGE
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 5
ny = 6
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[XFEM]
geometric_cut_userobjects = 'line_seg_cut_uo'
qrule = moment_fitting
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.5 1.0 0.5 0.5'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[]
[Variables]
[./u]
[../]
[]
[Functions]
[./u_left]
type = PiecewiseLinear
x = '0 2'
y = '0 0.1'
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[BCs]
# Define boundary conditions
[./left_u]
type = FunctionDirichletBC
variable = u
boundary = 3
function = u_left
[../]
[./right_u]
type = DirichletBC
variable = u
boundary = 1
value = 0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
line_search = 'none'
l_tol = 1e-3
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
end_time = 2.0
[]
[Outputs]
interval = 1
execute_on = timestep_end
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/corner_nodes_cut/corner_node_cut_twice.i)
[GlobalParams]
order = FIRST
family = LAGRANGE
displacements = 'disp_x disp_y'
volumetric_locking_correction = true
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '-0.0 0.3 1.0 0.7'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 4
ny = 10
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = SMALL
[../]
[]
[BCs]
[./top_x]
type = DirichletBC
boundary = 2
variable = disp_x
value = 0.0
[../]
[./top_y]
type = DirichletBC
boundary = 2
variable = disp_y
value = 0.1
[../]
[./bottom_y]
type = DirichletBC
boundary = 0
variable = disp_y
value = -0.1
[../]
[./bottom_x]
type = DirichletBC
boundary = 0
variable = disp_x
value = 0.0
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 1e6
poissons_ratio = 0.3
[../]
[./stress]
type = ComputeLinearElasticStress
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = '201 hypre boomeramg 8'
line_search = 'none'
[./Predictor]
type = SimplePredictor
scale = 1.0
[../]
# controls for linear iterations
l_max_its = 100
l_tol = 1e-2
# controls for nonlinear iterations
nl_max_its = 15
nl_rel_tol = 1e-16
nl_abs_tol = 1e-9
# time control
start_time = 0.0
dt = 1.0
end_time = 1.0
[]
[Outputs]
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/corner_nodes_cut/corner_node_cut.i)
[GlobalParams]
order = FIRST
family = LAGRANGE
displacements = 'disp_x disp_y'
volumetric_locking_correction = true
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.0 0.5 0.5 0.5'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 4
ny = 4
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = SMALL
[../]
[]
[BCs]
[./top_x]
type = DirichletBC
boundary = 2
variable = disp_x
value = 0.0
[../]
[./top_y]
type = DirichletBC
boundary = 2
variable = disp_y
value = 0.1
[../]
[./bottom_y]
type = DirichletBC
boundary = 0
variable = disp_y
value = 0.0
[../]
[./bottom_x]
type = DirichletBC
boundary = 0
variable = disp_x
value = 0.0
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 1e6
poissons_ratio = 0.3
[../]
[./stress]
type = ComputeLinearElasticStress
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = '201 hypre boomeramg 8'
line_search = 'none'
[./Predictor]
type = SimplePredictor
scale = 1.0
[../]
# max_xfem_update = 1
# controls for linear iterations
l_max_its = 100
l_tol = 1e-2
# controls for nonlinear iterations
nl_max_its = 15
nl_rel_tol = 1e-16
nl_abs_tol = 1e-10
# time control
start_time = 0.0
dt = 1.0
end_time = 1.0
[]
[Outputs]
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/pressure_bc/2d_pressure_displaced_mesh.i)
[GlobalParams]
order = FIRST
family = LAGRANGE
displacements = 'disp_x disp_y'
volumetric_locking_correction = false
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 4
ny = 5
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.0 0.5 1.0 0.5'
[../]
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = FINITE
add_variables = true
planar_formulation = PLANE_STRAIN
generate_output = 'stress_xx stress_yy'
[../]
[]
[Functions]
[./pressure]
type = PiecewiseLinear
x = '0 1.0'
y = '500 500'
[../]
[./bc_func_tx]
type = ParsedFunction
value = '0.5-(0.5-x)*cos(pi*t/2.0)-x'
[../]
[./bc_func_ty]
type = ParsedFunction
value = '(0.5-x)*sin(pi*t/2.0)+0.5'
[../]
[]
[BCs]
[./bottom_y]
type = DirichletBC
boundary = 0
preset = false
variable = disp_y
value = 0.0
[../]
[./bottom_x]
type = DirichletBC
boundary = 0
preset = false
variable = disp_x
value = 0.0
[../]
[./top_right_y]
type = FunctionDirichletBC
boundary = 2
preset = false
variable = disp_y
function = bc_func_ty
[../]
[./top_right_x]
type = FunctionDirichletBC
boundary = 2
preset = false
variable = disp_x
function = bc_func_tx
[../]
[]
[DiracKernels]
[./pressure_x]
type = XFEMPressure
variable = disp_x
component = 0
function = pressure
use_displaced_mesh = true
[../]
[./pressure_y]
type = XFEMPressure
variable = disp_y
component = 1
function = pressure
use_displaced_mesh = true
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 1e6
poissons_ratio = 0.3
[../]
[./stress]
type = ComputeFiniteStrainElasticStress
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = '201 hypre boomeramg 8'
line_search = 'none'
[./Predictor]
type = SimplePredictor
scale = 1.0
[../]
# controls for linear iterations
l_max_its = 100
l_tol = 1e-2
# controls for nonlinear iterations
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-14
# time control
start_time = 0.0
dt = 0.1
end_time = 1.0
[]
[Outputs]
file_base = 2d_pressure_displaced_mesh_out
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/single_var_constraint_2d/stationary_fluxjump.i)
[GlobalParams]
order = FIRST
family = LAGRANGE
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 5
ny = 5
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.5 1.0 0.5 0.0'
[../]
[]
[Variables]
[./u]
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[Constraints]
[./xfem_constraint]
type = XFEMSingleVariableConstraint
variable = u
jump = 0
jump_flux = 1
geometric_cut_userobject = 'line_seg_cut_uo'
[../]
[]
[BCs]
# Define boundary conditions
[./left_u]
type = DirichletBC
variable = u
boundary = 3
value = 1
[../]
[./right_u]
type = DirichletBC
variable = u
boundary = 1
value = 0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
line_search = 'none'
l_tol = 1e-3
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
end_time = 2.0
[]
[Outputs]
interval = 1
execute_on = timestep_end
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/combined/examples/xfem/xfem_thermomechanics_stress_growth.i)
# This is a demonstration of a simple thermomechanics simulation using
# XFEM in which a single crack propagates based on a principal stress
# criterion.
#
# The top and bottom of the plate are fixed in the y direction, and the
# top of the plate is cooled down over time. The thermal contraction
# causes tensile stresses, which lead to crack propagation. The crack
# propagates in a curved path because of the changinging nature of
# the thermal gradient as a result of the crack. There is no heat
# conduction across the crack as soon as it forms.
[GlobalParams]
displacements = 'disp_x disp_y'
volumetric_locking_correction = true
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 11
ny = 11
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[Variables]
# Solve for the temperature and the displacements
# Displacements are not specified because the TensorMechanics/Master Action sets them up
[./temp]
initial_condition = 300
[../]
[]
[XFEM]
geometric_cut_userobjects = 'line_seg_cut_uo'
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '1.0 0.5 0.8 0.5'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[./xfem_marker_uo]
type = XFEMRankTwoTensorMarkerUserObject
execute_on = timestep_end
tensor = stress
scalar_type = MaxPrincipal
threshold = 5e+1
average = true
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = FINITE
planar_formulation = plane_strain
add_variables = true
eigenstrain_names = eigenstrain
[../]
[]
[Kernels]
[./htcond]
type = HeatConduction
variable = temp
[../]
[]
[BCs]
[./bottomx]
type = DirichletBC
boundary = bottom
variable = disp_x
value = 0.0
[../]
[./bottomy]
type = DirichletBC
boundary = bottom
variable = disp_y
value = 0.0
[../]
[./topx]
type = DirichletBC
boundary = top
variable = disp_x
value = 0.0
[../]
[./topy]
type = DirichletBC
boundary = top
variable = disp_y
value = 0.0
[../]
[./topt]
type = FunctionDirichletBC
boundary = top
variable = temp
function = 273-t*27.3
[../]
[./bott]
type = FunctionDirichletBC
boundary = bottom
variable = temp
function = 273
# value = 273.0
[../]
[]
[Materials]
[./thcond]
type = GenericConstantMaterial
prop_names = 'thermal_conductivity'
prop_values = '5e-6'
[../]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 1e6
poissons_ratio = 0.3
[../]
[./_elastic_strain]
type = ComputeFiniteStrainElasticStress
[../]
[./thermal_strain]
type= ComputeThermalExpansionEigenstrain
thermal_expansion_coeff = 10e-6
temperature = temp
stress_free_temperature = 273
eigenstrain_name = eigenstrain
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = '201 hypre boomeramg 8'
line_search = 'none'
[./Predictor]
type = SimplePredictor
scale = 1.0
[../]
# controls for linear iterations
l_max_its = 100
l_tol = 1e-2
# controls for nonlinear iterations
nl_max_its = 15
nl_rel_tol = 1e-14
nl_abs_tol = 1e-9
# time control
start_time = 0.0
dt = 1.0
end_time = 10.0
max_xfem_update = 5
[]
[Outputs]
exodus = true
execute_on = timestep_end
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/mechanical_constraint/glued_penalty.i)
[GlobalParams]
displacements = 'disp_x disp_y'
volumetric_locking_correction = false
[]
[XFEM]
geometric_cut_userobjects = 'line_seg_cut_uo'
qrule = volfrac
output_cut_plane = true
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 11
ny = 11
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '1.0 0.5 0.0 0.5'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = FINITE
planar_formulation = plane_strain
add_variables = true
[../]
[]
[Functions]
[./pull]
type = PiecewiseLinear
x='0 50 100'
y='0 0.02 0.1'
[../]
[]
[BCs]
[./bottomx]
type = DirichletBC
boundary = bottom
variable = disp_x
value = 0.0
[../]
[./bottomy]
type = DirichletBC
boundary = bottom
variable = disp_y
value = 0.0
[../]
[./topx]
type = DirichletBC
boundary = top
variable = disp_x
value = 0.0
[../]
[./topy]
type = FunctionDirichletBC
boundary = top
variable = disp_y
function = pull
[../]
[]
[Constraints]
[./disp_x]
type = XFEMSingleVariableConstraint
variable = disp_x
use_penalty = true
alpha = 1.0e8
use_displaced_mesh = true
geometric_cut_userobject = 'line_seg_cut_uo'
[../]
[./disp_y]
type = XFEMSingleVariableConstraint
variable = disp_y
use_penalty = true
alpha = 1.0e8
use_displaced_mesh = true
geometric_cut_userobject = 'line_seg_cut_uo'
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 1e6
poissons_ratio = 0.3
block = 0
[../]
[./_elastic_strain]
type = ComputeFiniteStrainElasticStress
block = 0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = '201 hypre boomeramg 8'
line_search = 'none'
[./Predictor]
type = SimplePredictor
scale = 1.0
[../]
# controls for linear iterations
l_max_its = 100
l_tol = 1e-2
# controls for nonlinear iterations
nl_max_its = 15
nl_rel_tol = 1e-14
nl_abs_tol = 1e-9
# time control
start_time = 0.0
dt = 1.0
end_time = 2.0
num_steps = 5000
max_xfem_update = 1
[]
[Outputs]
exodus = true
execute_on = timestep_end
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/side_integral/side_integral.i)
[GlobalParams]
order = FIRST
family = LAGRANGE
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 5
ny = 6
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.55 1.0 0.55 0.0'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[]
[Variables]
[./u]
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[BCs]
# Define boundary conditions
[./top]
type = DirichletBC
variable = u
boundary = 2
value = 3
[../]
[./bottom]
type = DirichletBC
variable = u
boundary = 0
value = 2
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
line_search = 'none'
l_tol = 1e-3
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
end_time = 2.0
[]
[Postprocessors]
[./top_surface]
type = SideIntegralVariablePostprocessor
variable = u
boundary = 2
[../]
[./bottom_surface]
type = SideIntegralVariablePostprocessor
variable = u
boundary = 0
[../]
[]
[Outputs]
interval = 1
execute_on = timestep_end
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/single_var_constraint_2d/stationary_jump_func.i)
[GlobalParams]
order = FIRST
family = LAGRANGE
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 5
ny = 5
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.5 1.0 0.5 0.0'
[../]
[]
[Variables]
[./u]
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[Constraints]
[./xfem_constraint]
type = XFEMSingleVariableConstraint
variable = u
jump = jump_func
jump_flux = 0
geometric_cut_userobject = 'line_seg_cut_uo'
[../]
[]
[Functions]
[./jump_func]
type = ParsedFunction
value = '0.5'
[../]
[]
[BCs]
# Define boundary conditions
[./left_u]
type = DirichletBC
variable = u
boundary = 3
value = 1
[../]
[./right_u]
type = DirichletBC
variable = u
boundary = 1
value = 0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
line_search = 'none'
l_tol = 1e-3
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
end_time = 2.0
[]
[Outputs]
interval = 1
execute_on = timestep_end
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/corner_nodes_cut/notch.i)
[GlobalParams]
order = FIRST
family = LAGRANGE
displacements = 'disp_x disp_y'
volumetric_locking_correction = true
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '-0.26 0.0 0.0 0.1'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[]
[Mesh]
file = notch.e
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = SMALL
[../]
[]
[BCs]
[./top_x]
type = DirichletBC
boundary = 102
variable = disp_x
value = 0.0
[../]
[./top_y]
type = DirichletBC
boundary = 102
variable = disp_y
value = 0.1
[../]
[./bottom_y]
type = DirichletBC
boundary = 101
variable = disp_y
value = -0.1
[../]
[./bottom_x]
type = DirichletBC
boundary = 101
variable = disp_x
value = 0.0
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 1e6
poissons_ratio = 0.3
[../]
[./stress]
type = ComputeLinearElasticStress
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = '201 hypre boomeramg 8'
line_search = 'none'
[./Predictor]
type = SimplePredictor
scale = 1.0
[../]
# controls for linear iterations
l_max_its = 100
l_tol = 1e-2
# controls for nonlinear iterations
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-9
# time control
start_time = 0.0
dt = 1.0
end_time = 1.0
[]
[Outputs]
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/single_var_constraint_2d/propagating_2field_2constraint.i)
[GlobalParams]
order = FIRST
family = LAGRANGE
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 5
ny = 5
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.5 1.0 0.5 0.0'
time_start_cut = 0.0
time_end_cut = 2.0
[../]
[]
[Variables]
[./u]
[../]
[./v]
[../]
[]
[Kernels]
[./diff_u]
type = Diffusion
variable = u
[../]
[./diff_v]
type = Diffusion
variable = v
[../]
[]
[Constraints]
[./xfem_constraint_u]
type = XFEMSingleVariableConstraint
variable = u
jump = 0
jump_flux = 0
geometric_cut_userobject = 'line_seg_cut_uo'
[../]
[./xfem_constraint_v]
type = XFEMSingleVariableConstraint
variable = v
jump = 0
jump_flux = 0
geometric_cut_userobject = 'line_seg_cut_uo'
[../]
[]
[BCs]
# Define boundary conditions
[./left_u]
type = DirichletBC
variable = u
boundary = 3
value = 1
[../]
[./right_u]
type = DirichletBC
variable = u
boundary = 1
value = 0
[../]
[./left_v]
type = DirichletBC
variable = v
boundary = 3
value = 1
[../]
[./right_v]
type = DirichletBC
variable = v
boundary = 1
value = 0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
line_search = 'none'
l_tol = 1e-3
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
end_time = 2.0
[]
[Outputs]
interval = 1
execute_on = timestep_end
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/second_order_elements/diffusion_2d_tri6.i)
[GlobalParams]
order = SECOND
family = LAGRANGE
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 3
ny = 4
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = TRI6
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.35 1.0 0.35 0.2'
time_start_cut = 0.0
time_end_cut = 2.0
[../]
[]
[Variables]
[./u]
[../]
[]
[Functions]
[./u_left]
type = PiecewiseLinear
x = '0 2'
y = '0 0.1'
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[BCs]
# Define boundary conditions
[./left_u]
type = FunctionDirichletBC
variable = u
boundary = 3
function = u_left
[../]
[./right_u]
type = DirichletBC
variable = u
boundary = 1
value = 0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
line_search = 'none'
l_tol = 1e-3
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
end_time = 2.0
[]
[Outputs]
interval = 1
execute_on = timestep_end
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/solid_mechanics_basic/test.i)
[GlobalParams]
#displacements = 'disp_x disp_y'
volumetric_locking_correction = true
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
use_crack_growth_increment = true
crack_growth_increment = 0.2
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 5
ny = 5
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '1.0 0.5 0.3 0.5'
time_start_cut = 0.0
time_end_cut = 2.0
heal_always = true
[../]
[]
[Modules/TensorMechanics/Master]
displacements = 'disp_x disp_y'
[./all]
strain = FINITE
planar_formulation = plane_strain
add_variables = true
displacements = 'disp_x disp_y'
[../]
[]
[Functions]
[./pull]
type = PiecewiseLinear
x='0 50 100'
y='0 0.02 0.1'
[../]
[]
[BCs]
[./bottomx]
type = DirichletBC
boundary = bottom
variable = disp_x
value = 0.0
[../]
[./bottomy]
type = DirichletBC
boundary = bottom
variable = disp_y
value = 0.0
[../]
[./topx]
type = DirichletBC
boundary = top
variable = disp_x
value = 0.0
[../]
[./topy]
type = FunctionDirichletBC
boundary = top
variable = disp_y
function = pull
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 1e6
poissons_ratio = 0.3
block = 0
[../]
[./_elastic_strain]
type = ComputeFiniteStrainElasticStress
block = 0
displacements = 'disp_x disp_y'
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = '201 hypre boomeramg 8'
line_search = 'none'
[./Predictor]
type = SimplePredictor
scale = 1.0
[../]
# controls for linear iterations
l_max_its = 100
l_tol = 1e-2
# controls for nonlinear iterations
nl_max_its = 15
nl_rel_tol = 1e-14
nl_abs_tol = 1e-9
# time control
start_time = 0.0
dt = 1.0
end_time = 2.0
num_steps = 5000
max_xfem_update = 1
[]
[Outputs]
file_base = crack_propagation_2d_out
exodus = true
execute_on = timestep_end
[./console]
type = Console
output_linear = true
[../]
[]
(modules/xfem/test/tests/solid_mechanics_basic/test_crack_counter.i)
# This test is used to verify that the pure test object (TestCrackCounter)
# is correctly using the API for extracting the crack_tip_origin_direction_map
# from XFEM. The map contains information of the location of all the crack tips
# computed by XFEM. The TestCrackCounter postprocessor simply returns the
# number of elements in the map which corresponds to the number of cracks.
#
# In this test case 4 prescribed cracks are applied. Therefore, the
# TestCrackCounter postprocessor returns a value of 4.
[GlobalParams]
displacements = 'disp_x disp_y'
volumetric_locking_correction = true
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 11
ny = 11
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD4
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '1.0 0.5 0.7 0.5'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[./line_seg_cut_uo2]
type = LineSegmentCutUserObject
cut_data = '0.0 0.5 0.3 0.5'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[./line_seg_cut_uo3]
type = LineSegmentCutUserObject
cut_data = '0.5 0.0 0.5 0.3'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[./line_seg_cut_uo4]
type = LineSegmentCutUserObject
cut_data = '0.5 1.0 0.5 0.7'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = FINITE
planar_formulation = plane_strain
add_variables = true
[../]
[]
[Functions]
[./pull]
type = PiecewiseLinear
x='0 50 100'
y='0 0.02 0.1'
[../]
[]
[BCs]
[./bottomx]
type = DirichletBC
boundary = bottom
variable = disp_x
value = 0.0
[../]
[./bottomy]
type = DirichletBC
boundary = bottom
variable = disp_y
value = 0.0
[../]
[./topx]
type = DirichletBC
boundary = top
variable = disp_x
value = 0.0
[../]
[./topy]
type = FunctionDirichletBC
boundary = top
variable = disp_y
function = pull
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 1e6
poissons_ratio = 0.3
block = 0
[../]
[./_elastic_strain]
type = ComputeFiniteStrainElasticStress
block = 0
[../]
[]
[Postprocessors]
[./number_of_cracks]
type = TestCrackCounter
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = '201 hypre boomeramg 8'
line_search = 'none'
# controls for linear iterations
l_max_its = 100
l_tol = 1e-2
# controls for nonlinear iterations
nl_max_its = 15
nl_rel_tol = 1e-14
nl_abs_tol = 1e-9
# time control
start_time = 0.0
dt = 1.0
end_time = 1.0
num_steps = 5000
max_xfem_update = 1
[]
[Outputs]
csv = true
[]
(modules/xfem/test/tests/second_order_elements/diffusion_2d_quad9.i)
[GlobalParams]
order = SECOND
family = LAGRANGE
[]
[Mesh]
type = GeneratedMesh
dim = 2
nx = 3
ny = 4
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 1.0
elem_type = QUAD9
[]
[XFEM]
qrule = volfrac
output_cut_plane = true
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.35 1.0 0.35 0.2'
time_start_cut = 0.0
time_end_cut = 2.0
[../]
[]
[Variables]
[./u]
[../]
[]
[Functions]
[./u_left]
type = PiecewiseLinear
x = '0 2'
y = '0 0.1'
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[BCs]
# Define boundary conditions
[./left_u]
type = FunctionDirichletBC
variable = u
boundary = 3
function = u_left
[../]
[./right_u]
type = DirichletBC
variable = u
boundary = 1
value = 0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
line_search = 'none'
l_tol = 1e-3
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
start_time = 0.0
dt = 1.0
end_time = 2.0
[]
[Outputs]
interval = 1
execute_on = timestep_end
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]