- variableThe name of the variable that this residual object operates on
C++ Type:NonlinearVariableName
Description:The name of the variable that this residual object operates on
NormalNodalLMMechanicalContact
The NormalNodalLMMechanicalContact class is used to ensure that the Karush-Kuhn-Tucker conditions of mechanical contact are satisfied:
where is the gap and is the contact pressure, a Lagrange multipler variable living on the secondary face. This object enforces constraints nodally so that zero penetration of nodes is observed into the primary face.
The ncp_function_type parameter specifies the type of nonlinear complimentarity problem (NCP) function to use. The options are either min, which is just the min function, or fb which represents the Fischer-Burmeister function. In our experience, the min function achieves better convergence in the non-linear solve. The c parameter is used to balance the size of the gap and the normal contact pressure. If the contact pressure is of order 10000, and the gap is of order .01, then c should be set to 1e6 in order to bring components of the NCP function onto the same level and achieve optimal convergence in the non-linear solve.
Implements the KKT conditions for normal contact using an NCP function. Requires that either the gap distance or the normal contact pressure (represented by the value of variable) is zero. The LM variable must be of the same order as the mesh
Input Parameters
- c1Parameter for balancing the size of the gap and contact pressure
Default:1
C++ Type:double
Options:
Description:Parameter for balancing the size of the gap and contact pressure
- disp_yThe y displacement
C++ Type:std::vector<VariableName>
Options:
Description:The y displacement
- disp_zThe z displacement
C++ Type:std::vector<VariableName>
Options:
Description:The z displacement
- ncp_function_typeminThe type of NCP function to use
Default:min
C++ Type:MooseEnum
Options:min, fb
Description:The type of NCP function to use
- normal_smoothing_distanceDistance from edge in parametric coordinates over which to smooth contact normal
C++ Type:double
Options:
Description:Distance from edge in parametric coordinates over which to smooth contact normal
- normal_smoothing_methodMethod to use to smooth normals (edge_based|nodal_normal_based)
C++ Type:std::string
Options:
Description:Method to use to smooth normals (edge_based|nodal_normal_based)
- orderFIRSTThe finite element order used for projections
Default:FIRST
C++ Type:MooseEnum
Options:FIRST, SECOND, THIRD, FOURTH
Description:The finite element order used for projections
- primaryThe boundary ID associated with the primary side
C++ Type:BoundaryName
Options:
Description:The boundary ID associated with the primary side
- primary_variableThe variable on the primary side of the domain
C++ Type:std::vector<VariableName>
Options:
Description:The variable on the primary side of the domain
- secondaryThe boundary ID associated with the secondary side
C++ Type:BoundaryName
Options:
Description:The boundary ID associated with the secondary side
- tangential_toleranceTangential distance to extend edges of contact surfaces
C++ Type:double
Options:
Description:Tangential distance to extend edges of contact surfaces
Optional Parameters
- control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector<std::string>
Options:
Description:Adds user-defined labels for accessing object parameters via control logic.
- enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Options:
Description:Set the enabled status of the MooseObject.
- 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
- seed0The seed for the master random number generator
Default:0
C++ Type:unsigned int
Options:
Description:The seed for the master random number generator
- use_displaced_meshTrueWhether 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:True
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.
Advanced Parameters
- extra_matrix_tagsThe extra tags for the matrices this Kernel should fill
C++ Type:std::vector<TagName>
Options:
Description:The extra tags for the matrices this Kernel should fill
- extra_vector_tagsThe extra tags for the vectors this Kernel should fill
C++ Type:std::vector<TagName>
Options:
Description:The extra tags for the vectors this Kernel should fill
- matrix_tagssystemThe tag for the matrices this Kernel should fill
Default:system
C++ Type:MultiMooseEnum
Options:nontime, system
Description:The tag for the matrices this Kernel should fill
- vector_tagsnontimeThe tag for the vectors this Kernel should fill
Default:nontime
C++ Type:MultiMooseEnum
Options:nontime, time
Description:The tag for the vectors this Kernel should fill
Tagging Parameters
Input Files
- (modules/contact/test/tests/mortar_tm/2drz/frictionless_first/finite_noaction.i)
- (modules/contact/test/tests/mortar_tm/2drz/frictionless_second/finite_noaction.i)
- (modules/contact/test/tests/bouncing-block-contact/frictionless-nodal-fb-lm-nodal-disp.i)
- (modules/contact/examples/2d_indenter/indenter_rz_fine.i)
- (modules/contact/test/tests/bouncing-block-contact/frictionless-nodal-fb-lm-mortar-disp.i)
- (modules/contact/test/tests/bouncing-block-contact/frictional-nodal-min-lm-mortar-disp.i)
- (modules/contact/test/tests/mortar_tm/2d/frictionless_first/finite_noaction.i)
- (modules/contact/test/tests/sliding_block/in_and_out/frictionless_lm.i)
- (modules/contact/test/tests/mortar_tm/2d/frictionless_second/finite_noaction.i)
- (modules/contact/test/tests/bouncing-block-contact/frictional-nodal-min-normal-lm-mortar-fb-tangential-lm-mortar-disp.i)
- (modules/contact/test/tests/bouncing-block-contact/frictionless-nodal-min-lm-mortar-disp.i)
- (modules/contact/test/tests/sliding_block/in_and_out/frictional_lm.i)
- (modules/contact/test/tests/bouncing-block-contact/grid-sequencing/grid-sequencing.i)
- (modules/contact/test/tests/mechanical-small-problem/frictionless-nodal-lm-mortar-disp.i)
- (modules/contact/test/tests/bouncing-block-contact/frictionless-nodal-min-lm-nodal-disp.i)
(modules/contact/test/tests/mortar_tm/2drz/frictionless_first/finite_noaction.i)
E_block = 1e7
E_plank = 1e7
elem = QUAD4
order = FIRST
name = 'finite_noaction'
[Problem]
coord_type = RZ
[]
[Mesh]
patch_size = 80
patch_update_strategy = auto
[./plank]
type = GeneratedMeshGenerator
dim = 2
xmin = 0
xmax = 0.6
ymin = -10
ymax = 10
nx = 2
ny = 67
elem_type = ${elem}
boundary_name_prefix = plank
[../]
[./plank_id]
type = SubdomainIDGenerator
input = plank
subdomain_id = 1
[../]
[./block]
type = GeneratedMeshGenerator
dim = 2
xmin = 0.61
xmax = 1.21
ymin = 9.2
ymax = 10.0
nx = 3
ny = 4
elem_type = ${elem}
boundary_name_prefix = block
boundary_id_offset = 10
[../]
[./block_id]
type = SubdomainIDGenerator
input = block
subdomain_id = 2
[../]
[./combined]
type = MeshCollectionGenerator
inputs = 'plank_id block_id'
[../]
[./block_rename]
type = RenameBlockGenerator
input = combined
old_block_id = '1 2'
new_block_name = 'plank block'
[../]
[./secondary]
input = block_rename
type = LowerDBlockFromSidesetGenerator
sidesets = 'block_left'
new_block_id = '30'
new_block_name = 'frictionless_secondary_subdomain'
[../]
[./primary]
input = secondary
type = LowerDBlockFromSidesetGenerator
sidesets = 'plank_right'
new_block_id = '20'
new_block_name = 'frictionless_primary_subdomain'
[../]
[]
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Variables]
[./disp_x]
order = ${order}
block = 'plank block'
scaling = ${fparse 2.0 / (E_plank + E_block)}
[../]
[./disp_y]
order = ${order}
block = 'plank block'
scaling = ${fparse 2.0 / (E_plank + E_block)}
[../]
[./frictionless_normal_lm]
order = ${order}
block = 'frictionless_secondary_subdomain'
[../]
[]
[Modules/TensorMechanics/Master]
[./block]
strain = FINITE
generate_output = 'stress_xx stress_yy stress_zz vonmises_stress hydrostatic_stress strain_xx strain_yy strain_zz'
block = 'block'
[../]
[./plank]
strain = FINITE
generate_output = 'stress_xx stress_yy stress_zz vonmises_stress hydrostatic_stress strain_xx strain_yy strain_zz'
block = 'plank'
eigenstrain_names = 'swell'
[../]
[]
[Constraints]
[./lm]
type = NormalNodalLMMechanicalContact
secondary = block_left
primary = plank_right
variable = frictionless_normal_lm
primary_variable = disp_x
disp_y = disp_y
ncp_function_type = min
use_displaced_mesh = true
[../]
[./normal_x]
type = NormalMortarMechanicalContact
primary_boundary = plank_right
secondary_boundary = block_left
primary_subdomain = frictionless_primary_subdomain
secondary_subdomain = frictionless_secondary_subdomain
variable = frictionless_normal_lm
secondary_variable = disp_x
component = x
use_displaced_mesh = true
compute_lm_residuals = false
[../]
[./normal_y]
type = NormalMortarMechanicalContact
primary_boundary = plank_right
secondary_boundary = block_left
primary_subdomain = frictionless_primary_subdomain
secondary_subdomain = frictionless_secondary_subdomain
variable = frictionless_normal_lm
secondary_variable = disp_y
component = y
use_displaced_mesh = true
compute_lm_residuals = false
[../]
[]
[BCs]
[./left_x]
type = DirichletBC
variable = disp_x
boundary = plank_left
value = 0.0
[../]
[./left_y]
type = DirichletBC
variable = disp_y
boundary = plank_bottom
value = 0.0
[../]
[./right_x]
type = DirichletBC
variable = disp_x
boundary = block_right
value = 0
[../]
[./right_y]
type = FunctionDirichletBC
variable = disp_y
boundary = block_right
function = '-t'
[../]
[]
[Materials]
[./plank]
type = ComputeIsotropicElasticityTensor
block = 'plank'
poissons_ratio = 0.3
youngs_modulus = ${E_plank}
[../]
[./block]
type = ComputeIsotropicElasticityTensor
block = 'block'
poissons_ratio = 0.3
youngs_modulus = ${E_block}
[../]
[./stress]
type = ComputeFiniteStrainElasticStress
block = 'plank block'
[../]
[./swell]
type = ComputeEigenstrain
block = 'plank'
eigenstrain_name = swell
eigen_base = '1 0 0 0 0 0 0 0 0'
prefactor = swell_mat
[../]
[./swell_mat]
type = GenericFunctionMaterial
prop_names = 'swell_mat'
prop_values = '7e-2*(1-cos(4*t))'
block = 'plank'
[../]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options = '-snes_converged_reason -ksp_converged_reason'
petsc_options_iname = '-pc_type -mat_mffd_err -pc_factor_shift_type -pc_factor_shift_amount'
petsc_options_value = 'lu 1e-5 NONZERO 1e-15'
end_time = 10
dt = 0.1
dtmin = 0.1
timestep_tolerance = 1e-6
line_search = 'contact'
snesmf_reuse_base = false
[]
[Postprocessors]
[./nl_its]
type = NumNonlinearIterations
[../]
[./total_nl_its]
type = CumulativeValuePostprocessor
postprocessor = nl_its
[../]
[./l_its]
type = NumLinearIterations
[../]
[./total_l_its]
type = CumulativeValuePostprocessor
postprocessor = l_its
[../]
[./contact]
type = ContactDOFSetSize
variable = frictionless_normal_lm
subdomain = frictionless_secondary_subdomain
[../]
[./avg_hydro]
type = ElementAverageValue
variable = hydrostatic_stress
block = 'block'
[../]
[./max_hydro]
type = ElementExtremeValue
variable = hydrostatic_stress
block = 'block'
[../]
[./min_hydro]
type = ElementExtremeValue
variable = hydrostatic_stress
block = 'block'
value_type = min
[../]
[./avg_vonmises]
type = ElementAverageValue
variable = vonmises_stress
block = 'block'
[../]
[./max_vonmises]
type = ElementExtremeValue
variable = vonmises_stress
block = 'block'
[../]
[./min_vonmises]
type = ElementExtremeValue
variable = vonmises_stress
block = 'block'
value_type = min
[../]
[]
[Outputs]
exodus = true
file_base = ${name}
[./comp]
type = CSV
show = 'contact'
[../]
[./out]
type = CSV
file_base = '${name}_out'
[../]
[]
[Debug]
show_var_residual_norms = true
[]
(modules/contact/test/tests/mortar_tm/2drz/frictionless_second/finite_noaction.i)
E_block = 1e7
E_plank = 1e7
elem = QUAD9
order = SECOND
name = 'finite_noaction'
[Problem]
coord_type = RZ
[]
[Mesh]
patch_size = 80
patch_update_strategy = auto
[./plank]
type = GeneratedMeshGenerator
dim = 2
xmin = 0
xmax = 0.6
ymin = 0
ymax = 10
nx = 2
ny = 33
elem_type = ${elem}
boundary_name_prefix = plank
[../]
[./plank_id]
type = SubdomainIDGenerator
input = plank
subdomain_id = 1
[../]
[./block]
type = GeneratedMeshGenerator
dim = 2
xmin = 0.61
xmax = 1.21
ymin = 9.2
ymax = 10.0
nx = 3
ny = 4
elem_type = ${elem}
boundary_name_prefix = block
boundary_id_offset = 10
[../]
[./block_id]
type = SubdomainIDGenerator
input = block
subdomain_id = 2
[../]
[./combined]
type = MeshCollectionGenerator
inputs = 'plank_id block_id'
[../]
[./block_rename]
type = RenameBlockGenerator
input = combined
old_block_id = '1 2'
new_block_name = 'plank block'
[../]
[./secondary]
input = block_rename
type = LowerDBlockFromSidesetGenerator
sidesets = 'block_left'
new_block_id = '30'
new_block_name = 'frictionless_secondary_subdomain'
[../]
[./primary]
input = secondary
type = LowerDBlockFromSidesetGenerator
sidesets = 'plank_right'
new_block_id = '20'
new_block_name = 'frictionless_primary_subdomain'
[../]
[]
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Variables]
[./disp_x]
order = ${order}
block = 'plank block'
scaling = ${fparse 2.0 / (E_plank + E_block)}
[../]
[./disp_y]
order = ${order}
block = 'plank block'
scaling = ${fparse 2.0 / (E_plank + E_block)}
[../]
[./frictionless_normal_lm]
order = ${order}
block = 'frictionless_secondary_subdomain'
[../]
[]
[Modules/TensorMechanics/Master]
[./block]
strain = FINITE
generate_output = 'stress_xx stress_yy stress_zz vonmises_stress hydrostatic_stress strain_xx strain_yy strain_zz'
block = 'block'
[../]
[./plank]
strain = FINITE
generate_output = 'stress_xx stress_yy stress_zz vonmises_stress hydrostatic_stress strain_xx strain_yy strain_zz'
block = 'plank'
eigenstrain_names = 'swell'
[../]
[]
[Constraints]
[./lm]
type = NormalNodalLMMechanicalContact
secondary = block_left
primary = plank_right
variable = frictionless_normal_lm
primary_variable = disp_x
disp_y = disp_y
ncp_function_type = min
use_displaced_mesh = true
[../]
[./normal_x]
type = NormalMortarMechanicalContact
primary_boundary = plank_right
secondary_boundary = block_left
primary_subdomain = frictionless_primary_subdomain
secondary_subdomain = frictionless_secondary_subdomain
variable = frictionless_normal_lm
secondary_variable = disp_x
component = x
use_displaced_mesh = true
compute_lm_residuals = false
[../]
[./normal_y]
type = NormalMortarMechanicalContact
primary_boundary = plank_right
secondary_boundary = block_left
primary_subdomain = frictionless_primary_subdomain
secondary_subdomain = frictionless_secondary_subdomain
variable = frictionless_normal_lm
secondary_variable = disp_y
component = y
use_displaced_mesh = true
compute_lm_residuals = false
[../]
[]
[BCs]
[./left_x]
type = DirichletBC
variable = disp_x
preset = false
boundary = plank_left
value = 0.0
[../]
[./left_y]
type = DirichletBC
variable = disp_y
preset = false
boundary = plank_bottom
value = 0.0
[../]
[./right_x]
type = DirichletBC
variable = disp_x
preset = false
boundary = block_right
value = 0
[../]
[./right_y]
type = FunctionDirichletBC
variable = disp_y
preset = false
boundary = block_right
function = '-t'
[../]
[]
[Materials]
[./plank]
type = ComputeIsotropicElasticityTensor
block = 'plank'
poissons_ratio = 0.3
youngs_modulus = ${E_plank}
[../]
[./block]
type = ComputeIsotropicElasticityTensor
block = 'block'
poissons_ratio = 0.3
youngs_modulus = ${E_block}
[../]
[./stress]
type = ComputeFiniteStrainElasticStress
block = 'plank block'
[../]
[./swell]
type = ComputeEigenstrain
block = 'plank'
eigenstrain_name = swell
eigen_base = '1 0 0 0 0 0 0 0 0'
prefactor = swell_mat
[../]
[./swell_mat]
type = GenericFunctionMaterial
prop_names = 'swell_mat'
prop_values = '7e-2*(1-cos(4*t))'
block = 'plank'
[../]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options = '-snes_converged_reason -ksp_converged_reason'
petsc_options_iname = '-pc_type -mat_mffd_err -pc_factor_shift_type -pc_factor_shift_amount'
petsc_options_value = 'lu 1e-5 NONZERO 1e-15'
end_time = 5
dt = 0.1
dtmin = 0.1
timestep_tolerance = 1e-6
line_search = 'contact'
snesmf_reuse_base = false
[]
[Postprocessors]
[./nl_its]
type = NumNonlinearIterations
[../]
[./total_nl_its]
type = CumulativeValuePostprocessor
postprocessor = nl_its
[../]
[./l_its]
type = NumLinearIterations
[../]
[./total_l_its]
type = CumulativeValuePostprocessor
postprocessor = l_its
[../]
[./contact]
type = ContactDOFSetSize
variable = frictionless_normal_lm
subdomain = frictionless_secondary_subdomain
[../]
[./avg_hydro]
type = ElementAverageValue
variable = hydrostatic_stress
block = 'block'
[../]
[./max_hydro]
type = ElementExtremeValue
variable = hydrostatic_stress
block = 'block'
[../]
[./min_hydro]
type = ElementExtremeValue
variable = hydrostatic_stress
block = 'block'
value_type = min
[../]
[./avg_vonmises]
type = ElementAverageValue
variable = vonmises_stress
block = 'block'
[../]
[./max_vonmises]
type = ElementExtremeValue
variable = vonmises_stress
block = 'block'
[../]
[./min_vonmises]
type = ElementExtremeValue
variable = vonmises_stress
block = 'block'
value_type = min
[../]
[]
[Outputs]
exodus = true
file_base = ${name}
[./comp]
type = CSV
show = 'contact'
[../]
[./out]
type = CSV
file_base = '${name}_out'
[../]
[]
[Debug]
show_var_residual_norms = true
[]
(modules/contact/test/tests/bouncing-block-contact/frictionless-nodal-fb-lm-nodal-disp.i)
starting_point = 2e-1
offset = 1e-2
[GlobalParams]
displacements = 'disp_x disp_y'
diffusivity = 1e0
scaling = 1e0
[]
[Mesh]
file = long-bottom-block-1elem-blocks.e
[]
[Problem]
kernel_coverage_check = false
[]
[Variables]
[./disp_x]
block = '1 2'
[../]
[./disp_y]
block = '1 2'
[../]
[./normal_lm]
block = 3
[../]
[]
[ICs]
[./disp_y]
block = 2
variable = disp_y
value = ${fparse starting_point + offset}
type = ConstantIC
[../]
[]
[Kernels]
[./disp_x]
type = MatDiffusion
variable = disp_x
[../]
[./disp_y]
type = MatDiffusion
variable = disp_y
[../]
[]
[Constraints]
[./lm]
type = NormalNodalLMMechanicalContact
secondary = 10
primary = 20
variable = normal_lm
primary_variable = disp_x
disp_y = disp_y
ncp_function_type = 'fb'
[../]
[./disp_x]
type = NormalNodalMechanicalContact
secondary = 10
primary = 20
variable = disp_x
primary_variable = disp_x
lambda = normal_lm
component = x
[../]
[./disp_y]
type = NormalNodalMechanicalContact
secondary = 10
primary = 20
variable = disp_y
primary_variable = disp_y
lambda = normal_lm
component = y
[../]
[]
[BCs]
[./botx]
type = DirichletBC
variable = disp_x
preset = false
boundary = 40
value = 0.0
[../]
[./boty]
type = DirichletBC
variable = disp_y
preset = false
boundary = 40
value = 0.0
[../]
[./topy]
type = FunctionDirichletBC
variable = disp_y
preset = false
boundary = 30
function = '${starting_point} * cos(2 * pi / 40 * t) + ${offset}'
[../]
[./leftx]
type = FunctionDirichletBC
variable = disp_x
preset = false
boundary = 50
function = '1e-2 * t'
[../]
[]
[Executioner]
type = Transient
end_time = 200
dt = 5
dtmin = .1
solve_type = 'PJFNK'
petsc_options = '-snes_converged_reason -ksp_converged_reason -pc_svd_monitor -snes_linesearch_monitor'
petsc_options_iname = '-pc_type -pc_factor_shift_type -pc_factor_shift_amount -mat_mffd_err'
petsc_options_value = 'lu NONZERO 1e-15 1e-5'
l_max_its = 30
nl_max_its = 20
line_search = 'none'
snesmf_reuse_base = false
[]
[Debug]
show_var_residual_norms = true
[]
[Outputs]
exodus = true
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Postprocessors]
active = 'num_nl cumulative contact'
[./num_nl]
type = NumNonlinearIterations
[../]
[./cumulative]
type = CumulativeValuePostprocessor
postprocessor = num_nl
[../]
[contact]
type = ContactDOFSetSize
variable = normal_lm
subdomain = '3'
execute_on = 'nonlinear timestep_end'
[]
[]
(modules/contact/examples/2d_indenter/indenter_rz_fine.i)
[GlobalParams]
volumetric_locking_correction = true
displacements = 'disp_x disp_y'
[]
[Problem]
coord_type = RZ
type = ReferenceResidualProblem
reference_vector = 'ref'
extra_tag_vectors = 'ref'
[]
[Mesh]
patch_update_strategy = auto
patch_size = 2
partitioner = centroid
centroid_partitioner_direction = y
[simple_mesh]
type = FileMeshGenerator
file = indenter_rz_fine_bigsideset.e
[]
[secondary]
type = LowerDBlockFromSidesetGenerator
sidesets = '4'
new_block_id = '10001'
new_block_name = 'secondary_lower'
input = simple_mesh
[]
[primary]
type = LowerDBlockFromSidesetGenerator
sidesets = '6'
new_block_id = '10000'
new_block_name = 'primary_lower'
input = secondary
[]
# For NodalVariableValue to work with distributed mesh
allow_renumbering = false
[../]
[Functions]
[disp_y]
type = PiecewiseLinear
x = '0. 1.0 2.0 2.6 3.0'
y = '0. -4.5 -5.7 -5.7 -4.0'
[]
[]
[Variables]
[disp_x]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[disp_y]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[frictionless_normal_lm]
block = 'secondary_lower'
[]
[]
[AuxVariables]
[saved_x]
[]
[saved_y]
[]
[]
[Modules/TensorMechanics/Master]
[all]
add_variables = true
strain = FINITE
block = '1 2'
use_automatic_differentiation = false
generate_output = 'stress_xx stress_xy stress_xz stress_yy stress_zz'
save_in = 'saved_x saved_y'
[]
[]
[BCs]
# Symmetries of the Problem
[symm_x_indenter]
type = DirichletBC
variable = disp_x
boundary = 5
value = 0.0
[]
[symm_x_material]
type = DirichletBC
variable = disp_x
boundary = 9
value = 0.0
[]
# Material should not fly away
[material_base_y]
type = DirichletBC
variable = disp_y
boundary = 8
value = 0.0
[]
# Drive indenter motion
[disp_y]
type = FunctionDirichletBC
variable = disp_y
boundary = 1
function = disp_y
[]
[]
[Constraints]
# All constraints below for mechanical contact (Mortar)
[lm]
type = NormalNodalLMMechanicalContact
secondary = '4'
primary = 6
variable = frictionless_normal_lm
primary_variable = disp_x
disp_y = disp_y
use_displaced_mesh = true
tangential_tolerance = 0.01
[]
[x]
type = NormalMortarMechanicalContact
primary_boundary = '6'
secondary_boundary = '4'
primary_subdomain = '10000'
secondary_subdomain = '10001'
variable = frictionless_normal_lm
secondary_variable = disp_x
component = x
use_displaced_mesh = true
compute_lm_residuals = true
[]
[y]
type = NormalMortarMechanicalContact
primary_boundary = '6'
secondary_boundary = '4'
primary_subdomain = '10000'
secondary_subdomain = '10001'
variable = frictionless_normal_lm
secondary_variable = disp_y
component = y
use_displaced_mesh = true
compute_lm_residuals = true
[]
[../]
[UserObjects]
[slip_rate_gss]
type = CrystalPlasticitySlipRateGSS
variable_size = 48
slip_sys_file_name = input_slip_sys_bcc48.txt
num_slip_sys_flowrate_props = 2
flowprops = '1 48 0.0001 0.01'
uo_state_var_name = state_var_gss
slip_incr_tol = 10.0
block = 2
[]
[slip_resistance_gss]
type = CrystalPlasticitySlipResistanceGSS
variable_size = 48
uo_state_var_name = state_var_gss
block = 2
[]
[state_var_gss]
type = CrystalPlasticityStateVariable
variable_size = 48
groups = '0 24 48'
group_values = '900 1000' #120
uo_state_var_evol_rate_comp_name = state_var_evol_rate_comp_gss
scale_factor = 1.0
block = 2
[]
[state_var_evol_rate_comp_gss]
type = CrystalPlasticityStateVarRateComponentGSS
variable_size = 48
hprops = '1.4 1000 1200 2.5'
uo_slip_rate_name = slip_rate_gss
uo_state_var_name = state_var_gss
block = 2
[]
[]
[Materials]
[tensor]
type = ComputeIsotropicElasticityTensor
block = '1'
youngs_modulus = 1.0e7
poissons_ratio = 0.25
[]
[stress]
type = ComputeFiniteStrainElasticStress
block = '1'
[]
[crysp]
type = FiniteStrainUObasedCP
block = 2
stol = 1e-2
tan_mod_type = exact
uo_slip_rates = 'slip_rate_gss'
uo_slip_resistances = 'slip_resistance_gss'
uo_state_vars = 'state_var_gss'
uo_state_var_evol_rate_comps = 'state_var_evol_rate_comp_gss'
maximum_substep_iteration = 20
[]
[elasticity_tensor]
type = ComputeElasticityTensorCP
block = 2
C_ijkl = '265190 113650 113650 265190 113650 265190 75769 75769 75760'
fill_method = symmetric9
[]
[]
[Preconditioning]
[SMP]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options = '-snes_ksp_ew'
petsc_options_iname = '-pc_type -snes_linesearch_type -pc_factor_shift_type '
'-pc_factor_shift_amount'
petsc_options_value = 'lu basic NONZERO 1e-15'
line_search = 'none'
automatic_scaling = true
nl_abs_tol = 1.5e-07
nl_rel_tol = 1.5e-07
l_max_its = 40
l_abs_tol = 1e-08
l_tol = 1e-08
start_time = 0.0
dt = 0.01
end_time = 3.0 # Executioner
[]
[Postprocessors]
[maxdisp]
type = NodalVariableValue
nodeid = 39
variable = disp_y
[]
[resid_y]
type = NodalSum
variable = saved_y
boundary = 1
[]
[]
[Outputs]
[out]
type = Exodus
elemental_as_nodal = true
[]
perf_graph = true
csv = true
[]
(modules/contact/test/tests/bouncing-block-contact/frictionless-nodal-fb-lm-mortar-disp.i)
starting_point = 2e-1
offset = 1e-2
[GlobalParams]
displacements = 'disp_x disp_y'
diffusivity = 1e0
scaling = 1e0
[]
[Mesh]
file = long-bottom-block-1elem-blocks.e
[]
[Variables]
[./disp_x]
block = '1 2'
[../]
[./disp_y]
block = '1 2'
[../]
[./normal_lm]
block = 3
[../]
[]
[ICs]
[./disp_y]
block = 2
variable = disp_y
value = ${fparse starting_point + offset}
type = ConstantIC
[../]
[]
[Kernels]
[./disp_x]
type = MatDiffusion
variable = disp_x
[../]
[./disp_y]
type = MatDiffusion
variable = disp_y
[../]
[]
[Constraints]
[./lm]
type = NormalNodalLMMechanicalContact
secondary = 10
primary = 20
variable = normal_lm
primary_variable = disp_x
disp_y = disp_y
ncp_function_type = 'fb'
[../]
[normal_x]
type = NormalMortarMechanicalContact
primary_boundary = 20
secondary_boundary = 10
primary_subdomain = 4
secondary_subdomain = 3
variable = normal_lm
secondary_variable = disp_x
component = x
use_displaced_mesh = true
compute_lm_residuals = false
[]
[normal_y]
type = NormalMortarMechanicalContact
primary_boundary = 20
secondary_boundary = 10
primary_subdomain = 4
secondary_subdomain = 3
variable = normal_lm
secondary_variable = disp_y
component = y
use_displaced_mesh = true
compute_lm_residuals = false
[]
[]
[BCs]
[./botx]
type = DirichletBC
variable = disp_x
boundary = 40
value = 0.0
[../]
[./boty]
type = DirichletBC
variable = disp_y
boundary = 40
value = 0.0
[../]
[./topy]
type = FunctionDirichletBC
variable = disp_y
boundary = 30
function = '${starting_point} * cos(2 * pi / 40 * t) + ${offset}'
[../]
[./leftx]
type = FunctionDirichletBC
variable = disp_x
boundary = 50
function = '1e-2 * t'
[../]
[]
[Executioner]
type = Transient
end_time = 200
dt = 5
dtmin = .1
solve_type = 'PJFNK'
petsc_options = '-snes_converged_reason -ksp_converged_reason -pc_svd_monitor -snes_linesearch_monitor'
petsc_options_iname = '-pc_type -pc_factor_shift_type -pc_factor_shift_amount -mat_mffd_err'
petsc_options_value = 'lu NONZERO 1e-15 1e-5'
l_max_its = 30
nl_max_its = 20
line_search = 'none'
snesmf_reuse_base = false
[]
[Debug]
show_var_residual_norms = true
[]
[Outputs]
exodus = true
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Postprocessors]
active = 'num_nl cumulative contact'
[./num_nl]
type = NumNonlinearIterations
[../]
[./cumulative]
type = CumulativeValuePostprocessor
postprocessor = num_nl
[../]
[contact]
type = ContactDOFSetSize
variable = normal_lm
subdomain = '3'
execute_on = 'nonlinear timestep_end'
[]
[]
(modules/contact/test/tests/bouncing-block-contact/frictional-nodal-min-lm-mortar-disp.i)
starting_point = 2e-1
offset = 1e-2
[GlobalParams]
displacements = 'disp_x disp_y'
diffusivity = 1e0
scaling = 1e0
[]
[Mesh]
file = long-bottom-block-1elem-blocks.e
[]
[Variables]
[./disp_x]
block = '1 2'
[../]
[./disp_y]
block = '1 2'
[../]
[./normal_lm]
block = 3
[../]
[./tangential_lm]
block = 3
[../]
[]
[ICs]
[./disp_y]
block = 2
variable = disp_y
value = ${fparse starting_point + offset}
type = ConstantIC
[../]
[]
[Kernels]
[./disp_x]
type = MatDiffusion
variable = disp_x
[../]
[./disp_y]
type = MatDiffusion
variable = disp_y
[../]
[]
[Constraints]
[normal_lm]
type = NormalNodalLMMechanicalContact
primary = 20
secondary = 10
variable = normal_lm
primary_variable = disp_x
disp_y = disp_y
ncp_function_type = min
[]
[normal_x]
type = NormalMortarMechanicalContact
primary_boundary = 20
secondary_boundary = 10
primary_subdomain = 4
secondary_subdomain = 3
variable = normal_lm
secondary_variable = disp_x
component = x
use_displaced_mesh = true
compute_lm_residuals = false
[]
[normal_y]
type = NormalMortarMechanicalContact
primary_boundary = 20
secondary_boundary = 10
primary_subdomain = 4
secondary_subdomain = 3
variable = normal_lm
secondary_variable = disp_y
component = y
use_displaced_mesh = true
compute_lm_residuals = false
[]
[tangential_lm]
type = TangentialNodalLMMechanicalContact
primary = 20
secondary = 10
variable = tangential_lm
primary_variable = disp_x
disp_y = disp_y
contact_pressure = normal_lm
ncp_function_type = min
mu = .1
[]
[tangential_x]
type = TangentialMortarMechanicalContact
primary_boundary = 20
secondary_boundary = 10
primary_subdomain = 4
secondary_subdomain = 3
variable = tangential_lm
secondary_variable = disp_x
component = x
use_displaced_mesh = true
compute_lm_residuals = false
[]
[tangential_y]
type = TangentialMortarMechanicalContact
primary_boundary = 20
secondary_boundary = 10
primary_subdomain = 4
secondary_subdomain = 3
variable = tangential_lm
secondary_variable = disp_y
component = y
use_displaced_mesh = true
compute_lm_residuals = false
[]
[]
[BCs]
[./botx]
type = DirichletBC
variable = disp_x
boundary = 40
value = 0.0
[../]
[./boty]
type = DirichletBC
variable = disp_y
boundary = 40
value = 0.0
[../]
[./topy]
type = FunctionDirichletBC
variable = disp_y
boundary = 30
function = '${starting_point} * cos(2 * pi / 40 * t) + ${offset}'
[../]
[./leftx]
type = FunctionDirichletBC
variable = disp_x
boundary = 50
function = '1e-2 * t'
[../]
[]
[Executioner]
type = Transient
end_time = 200
dt = 5
dtmin = .1
solve_type = 'PJFNK'
petsc_options = '-snes_converged_reason -ksp_converged_reason -pc_svd_monitor -snes_linesearch_monitor -snes_ksp_ew'
petsc_options_iname = '-pc_type -pc_factor_shift_type -pc_factor_shift_amount -mat_mffd_err'
petsc_options_value = 'lu NONZERO 1e-15 1e-5'
l_max_its = 30
nl_max_its = 20
line_search = 'none'
snesmf_reuse_base = false
[]
[Debug]
show_var_residual_norms = true
[]
[Outputs]
[exodus]
type = Exodus
sync_times = '0 5 10 15 20 25 30 35 40 45 50'
file_base = frictional-nodal-min-lm-mortar-disp_out
[]
[dof]
type = DOFMap
execute_on = 'initial'
[]
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Postprocessors]
[./num_nl]
type = NumNonlinearIterations
[../]
[./cumulative]
type = CumulativeValuePostprocessor
postprocessor = num_nl
[../]
[contact]
type = ContactDOFSetSize
variable = normal_lm
subdomain = '3'
execute_on = 'nonlinear timestep_end'
[]
[]
(modules/contact/test/tests/mortar_tm/2d/frictionless_first/finite_noaction.i)
E_block = 1e7
E_plank = 1e7
elem = QUAD4
order = FIRST
name = 'finite_noaction'
[Mesh]
patch_size = 80
patch_update_strategy = auto
[./plank]
type = GeneratedMeshGenerator
dim = 2
xmin = -0.3
xmax = 0.3
ymin = -10
ymax = 10
nx = 2
ny = 67
elem_type = ${elem}
boundary_name_prefix = plank
[../]
[./plank_id]
type = SubdomainIDGenerator
input = plank
subdomain_id = 1
[../]
[./block]
type = GeneratedMeshGenerator
dim = 2
xmin = 0.31
xmax = 0.91
ymin = 7.7
ymax = 8.5
nx = 3
ny = 4
elem_type = ${elem}
boundary_name_prefix = block
boundary_id_offset = 10
[../]
[./block_id]
type = SubdomainIDGenerator
input = block
subdomain_id = 2
[../]
[./combined]
type = MeshCollectionGenerator
inputs = 'plank_id block_id'
[../]
[./block_rename]
type = RenameBlockGenerator
input = combined
old_block_id = '1 2'
new_block_name = 'plank block'
[../]
[./secondary]
input = block_rename
type = LowerDBlockFromSidesetGenerator
sidesets = 'block_left'
new_block_id = '30'
new_block_name = 'frictionless_secondary_subdomain'
[../]
[./primary]
input = secondary
type = LowerDBlockFromSidesetGenerator
sidesets = 'plank_right'
new_block_id = '20'
new_block_name = 'frictionless_primary_subdomain'
[../]
[]
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Variables]
[./disp_x]
order = ${order}
block = 'plank block'
scaling = ${fparse 2.0 / (E_plank + E_block)}
[../]
[./disp_y]
order = ${order}
block = 'plank block'
scaling = ${fparse 2.0 / (E_plank + E_block)}
[../]
[./frictionless_normal_lm]
order = ${order}
block = 'frictionless_secondary_subdomain'
[../]
[]
[Modules/TensorMechanics/Master]
[./action]
strain = FINITE
generate_output = 'stress_xx stress_yy stress_zz vonmises_stress hydrostatic_stress strain_xx strain_yy strain_zz'
block = 'plank block'
[../]
[]
[Constraints]
[./lm]
type = NormalNodalLMMechanicalContact
secondary = block_left
primary = plank_right
variable = frictionless_normal_lm
primary_variable = disp_x
disp_y = disp_y
ncp_function_type = min
use_displaced_mesh = true
[../]
[./normal_x]
type = NormalMortarMechanicalContact
primary_boundary = plank_right
secondary_boundary = block_left
primary_subdomain = frictionless_primary_subdomain
secondary_subdomain = frictionless_secondary_subdomain
variable = frictionless_normal_lm
secondary_variable = disp_x
component = x
use_displaced_mesh = true
compute_lm_residuals = false
[../]
[./normal_y]
type = NormalMortarMechanicalContact
primary_boundary = plank_right
secondary_boundary = block_left
primary_subdomain = frictionless_primary_subdomain
secondary_subdomain = frictionless_secondary_subdomain
variable = frictionless_normal_lm
secondary_variable = disp_y
component = y
use_displaced_mesh = true
compute_lm_residuals = false
[../]
[]
[BCs]
[./left_x]
type = DirichletBC
variable = disp_x
boundary = plank_left
value = 0.0
[../]
[./left_y]
type = DirichletBC
variable = disp_y
boundary = plank_bottom
value = 0.0
[../]
[./right_x]
type = FunctionDirichletBC
variable = disp_x
boundary = block_right
function = '-0.04*sin(4*(t+1.5))+0.02'
[../]
[./right_y]
type = FunctionDirichletBC
variable = disp_y
boundary = block_right
function = '-t'
[../]
[]
[Materials]
[./plank]
type = ComputeIsotropicElasticityTensor
block = 'plank'
poissons_ratio = 0.3
youngs_modulus = ${E_plank}
[../]
[./block]
type = ComputeIsotropicElasticityTensor
block = 'block'
poissons_ratio = 0.3
youngs_modulus = ${E_block}
[../]
[./stress]
type = ComputeFiniteStrainElasticStress
block = 'plank block'
[../]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options = '-snes_converged_reason -ksp_converged_reason'
petsc_options_iname = '-pc_type -mat_mffd_err -pc_factor_shift_type -pc_factor_shift_amount'
petsc_options_value = 'lu 1e-5 NONZERO 1e-15'
end_time = 13.5
dt = 0.1
dtmin = 0.1
timestep_tolerance = 1e-6
line_search = 'contact'
snesmf_reuse_base = false
[]
[Postprocessors]
[./nl_its]
type = NumNonlinearIterations
[../]
[./total_nl_its]
type = CumulativeValuePostprocessor
postprocessor = nl_its
[../]
[./l_its]
type = NumLinearIterations
[../]
[./total_l_its]
type = CumulativeValuePostprocessor
postprocessor = l_its
[../]
[./contact]
type = ContactDOFSetSize
variable = frictionless_normal_lm
subdomain = frictionless_secondary_subdomain
[../]
[./avg_hydro]
type = ElementAverageValue
variable = hydrostatic_stress
block = 'block'
[../]
[./max_hydro]
type = ElementExtremeValue
variable = hydrostatic_stress
block = 'block'
[../]
[./min_hydro]
type = ElementExtremeValue
variable = hydrostatic_stress
block = 'block'
value_type = min
[../]
[./avg_vonmises]
type = ElementAverageValue
variable = vonmises_stress
block = 'block'
[../]
[./max_vonmises]
type = ElementExtremeValue
variable = vonmises_stress
block = 'block'
[../]
[./min_vonmises]
type = ElementExtremeValue
variable = vonmises_stress
block = 'block'
value_type = min
[../]
[]
[Outputs]
exodus = true
file_base = ${name}
[./comp]
type = CSV
show = 'contact'
[../]
[./out]
type = CSV
file_base = '${name}_out'
[../]
[]
[Debug]
show_var_residual_norms = true
[]
(modules/contact/test/tests/sliding_block/in_and_out/frictionless_lm.i)
[Mesh]
patch_size = 80
[file]
type = FileMeshGenerator
file = sliding_elastic_blocks_2d.e
[]
[secondary]
input = file
type = LowerDBlockFromSidesetGenerator
sidesets = '3'
new_block_id = '30'
[]
[primary]
input = secondary
type = LowerDBlockFromSidesetGenerator
sidesets = '2'
new_block_id = '20'
[]
[]
[GlobalParams]
displacements = 'disp_x disp_y'
volumetric_locking_correction = false
[]
[Modules/TensorMechanics/Master]
[./all]
add_variables = true
strain = FINITE
block = '1 2'
[../]
[]
[Variables]
[normal_lm]
block = '30'
[]
[]
[BCs]
[./left_x]
type = DirichletBC
variable = disp_x
boundary = 1
value = 0.0
[../]
[./left_y]
type = DirichletBC
variable = disp_y
boundary = 1
value = 0.0
[../]
[./right_x]
type = FunctionDirichletBC
variable = disp_x
boundary = 4
function = horizontal_movement
[../]
[./right_y]
type = FunctionDirichletBC
variable = disp_y
boundary = 4
function = vertical_movement
[../]
[]
[Materials]
[./left]
type = ComputeIsotropicElasticityTensor
block = '1 2'
youngs_modulus = 1e6
poissons_ratio = 0.3
constant_on = SUBDOMAIN
[../]
[./stress]
type = ComputeFiniteStrainElasticStress
block = '1 2'
[../]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options = '-snes_converged_reason -ksp_converged_reason -snes_ksp_ew'
petsc_options_iname = '-pc_type -mat_mffd_err -pc_factor_shift_type -pc_factor_shift_amount'
petsc_options_value = 'lu 1e-5 NONZERO 1e-15'
end_time = 15
dt = 0.1
dtmin = 0.01
l_max_its = 30
nl_max_its = 20
line_search = 'none'
timestep_tolerance = 1e-6
snesmf_reuse_base = false
[]
[Debug]
show_var_residual_norms = true
[]
[Outputs]
sync_times = '1 2 3 4 5 6 7 8 9 10 11 12 13 14 15'
[out]
type = Exodus
sync_only = true
[]
[dof]
execute_on = 'initial'
type = DOFMap
[]
[csv]
type = CSV
execute_on = 'nonlinear timestep_end'
[]
[]
[Functions]
[./vertical_movement]
type = ParsedFunction
value = -t
[../]
[./horizontal_movement]
type = ParsedFunction
value = -0.04*sin(4*t)+0.02
[../]
[]
[Constraints]
[./lm]
type = NormalNodalLMMechanicalContact
secondary = 3
primary = 2
variable = normal_lm
primary_variable = disp_x
disp_y = disp_y
ncp_function_type = min
use_displaced_mesh = true
[../]
[normal_x]
type = NormalMortarMechanicalContact
primary_boundary = '2'
secondary_boundary = '3'
primary_subdomain = '20'
secondary_subdomain = '30'
variable = normal_lm
secondary_variable = disp_x
component = x
use_displaced_mesh = true
compute_lm_residuals = false
[]
[normal_y]
type = NormalMortarMechanicalContact
primary_boundary = '2'
secondary_boundary = '3'
primary_subdomain = '20'
secondary_subdomain = '30'
variable = normal_lm
secondary_variable = disp_y
component = y
use_displaced_mesh = true
compute_lm_residuals = false
[]
[]
[Postprocessors]
[./num_nl]
type = NumNonlinearIterations
[../]
[lin]
type = NumLinearIterations
[]
[contact]
type = ContactDOFSetSize
variable = normal_lm
subdomain = '30'
execute_on = 'nonlinear timestep_end'
[]
[]
(modules/contact/test/tests/mortar_tm/2d/frictionless_second/finite_noaction.i)
E_block = 1e7
E_plank = 1e7
elem = QUAD9
order = SECOND
name = 'finite_noaction'
[Mesh]
patch_size = 80
patch_update_strategy = auto
[./plank]
type = GeneratedMeshGenerator
dim = 2
xmin = -0.3
xmax = 0.3
ymin = -10
ymax = 10
nx = 2
ny = 67
elem_type = ${elem}
boundary_name_prefix = plank
[../]
[./plank_id]
type = SubdomainIDGenerator
input = plank
subdomain_id = 1
[../]
[./block]
type = GeneratedMeshGenerator
dim = 2
xmin = 0.31
xmax = 0.91
ymin = 7.7
ymax = 8.5
nx = 3
ny = 4
elem_type = ${elem}
boundary_name_prefix = block
boundary_id_offset = 10
[../]
[./block_id]
type = SubdomainIDGenerator
input = block
subdomain_id = 2
[../]
[./combined]
type = MeshCollectionGenerator
inputs = 'plank_id block_id'
[../]
[./block_rename]
type = RenameBlockGenerator
input = combined
old_block_id = '1 2'
new_block_name = 'plank block'
[../]
[./secondary]
input = block_rename
type = LowerDBlockFromSidesetGenerator
sidesets = 'block_left'
new_block_id = '30'
new_block_name = 'frictionless_secondary_subdomain'
[../]
[./primary]
input = secondary
type = LowerDBlockFromSidesetGenerator
sidesets = 'plank_right'
new_block_id = '20'
new_block_name = 'frictionless_primary_subdomain'
[../]
[]
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Variables]
[./disp_x]
order = ${order}
block = 'plank block'
scaling = ${fparse 2.0 / (E_plank + E_block)}
[../]
[./disp_y]
order = ${order}
block = 'plank block'
scaling = ${fparse 2.0 / (E_plank + E_block)}
[../]
[./frictionless_normal_lm]
order = ${order}
block = 'frictionless_secondary_subdomain'
[../]
[]
[Modules/TensorMechanics/Master]
[./action]
strain = FINITE
generate_output = 'stress_xx stress_yy stress_zz vonmises_stress hydrostatic_stress strain_xx strain_yy strain_zz'
block = 'plank block'
[../]
[]
[Constraints]
[./lm]
type = NormalNodalLMMechanicalContact
secondary = block_left
primary = plank_right
variable = frictionless_normal_lm
primary_variable = disp_x
disp_y = disp_y
ncp_function_type = min
use_displaced_mesh = true
[../]
[./normal_x]
type = NormalMortarMechanicalContact
primary_boundary = plank_right
secondary_boundary = block_left
primary_subdomain = frictionless_primary_subdomain
secondary_subdomain = frictionless_secondary_subdomain
variable = frictionless_normal_lm
secondary_variable = disp_x
component = x
use_displaced_mesh = true
compute_lm_residuals = false
[../]
[./normal_y]
type = NormalMortarMechanicalContact
primary_boundary = plank_right
secondary_boundary = block_left
primary_subdomain = frictionless_primary_subdomain
secondary_subdomain = frictionless_secondary_subdomain
variable = frictionless_normal_lm
secondary_variable = disp_y
component = y
use_displaced_mesh = true
compute_lm_residuals = false
[../]
[]
[BCs]
[./left_x]
type = DirichletBC
variable = disp_x
preset = false
boundary = plank_left
value = 0.0
[../]
[./left_y]
type = DirichletBC
variable = disp_y
preset = false
boundary = plank_bottom
value = 0.0
[../]
[./right_x]
type = FunctionDirichletBC
variable = disp_x
preset = false
boundary = block_right
function = '-0.04*sin(4*(t+1.5))+0.02'
[../]
[./right_y]
type = FunctionDirichletBC
variable = disp_y
preset = false
boundary = block_right
function = '-t'
[../]
[]
[Materials]
[./plank]
type = ComputeIsotropicElasticityTensor
block = 'plank'
poissons_ratio = 0.3
youngs_modulus = ${E_plank}
[../]
[./block]
type = ComputeIsotropicElasticityTensor
block = 'block'
poissons_ratio = 0.3
youngs_modulus = ${E_block}
[../]
[./stress]
type = ComputeFiniteStrainElasticStress
block = 'plank block'
[../]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options = '-snes_converged_reason -ksp_converged_reason'
petsc_options_iname = '-pc_type -mat_mffd_err -pc_factor_shift_type -pc_factor_shift_amount'
petsc_options_value = 'lu 1e-5 NONZERO 1e-15'
end_time = 13.5
dt = 0.1
dtmin = 0.1
timestep_tolerance = 1e-6
line_search = 'contact'
snesmf_reuse_base = false
[]
[Postprocessors]
[./nl_its]
type = NumNonlinearIterations
[../]
[./total_nl_its]
type = CumulativeValuePostprocessor
postprocessor = nl_its
[../]
[./l_its]
type = NumLinearIterations
[../]
[./total_l_its]
type = CumulativeValuePostprocessor
postprocessor = l_its
[../]
[./contact]
type = ContactDOFSetSize
variable = frictionless_normal_lm
subdomain = frictionless_secondary_subdomain
[../]
[./avg_hydro]
type = ElementAverageValue
variable = hydrostatic_stress
block = 'block'
[../]
[./max_hydro]
type = ElementExtremeValue
variable = hydrostatic_stress
block = 'block'
[../]
[./min_hydro]
type = ElementExtremeValue
variable = hydrostatic_stress
block = 'block'
value_type = min
[../]
[./avg_vonmises]
type = ElementAverageValue
variable = vonmises_stress
block = 'block'
[../]
[./max_vonmises]
type = ElementExtremeValue
variable = vonmises_stress
block = 'block'
[../]
[./min_vonmises]
type = ElementExtremeValue
variable = vonmises_stress
block = 'block'
value_type = min
[../]
[]
[Outputs]
exodus = true
file_base = ${name}
[./comp]
type = CSV
show = 'contact'
[../]
[./out]
type = CSV
file_base = '${name}_out'
[../]
[]
[Debug]
show_var_residual_norms = true
[]
(modules/contact/test/tests/bouncing-block-contact/frictional-nodal-min-normal-lm-mortar-fb-tangential-lm-mortar-disp.i)
starting_point = 2e-1
# We offset slightly so we avoid the case where the bottom of the secondary block and the top of the
# primary block are perfectly vertically aligned which can cause the backtracking line search some
# issues for a coarse mesh (basic line search handles that fine)
offset = 1e-2
[GlobalParams]
displacements = 'disp_x disp_y'
diffusivity = 1e0
scaling = 1e0
[]
[Mesh]
[./file_mesh]
type = FileMeshGenerator
file = long-bottom-block-1elem-blocks-coarse.e
[../]
[]
[Variables]
[./disp_x]
block = '1 2'
# order = SECOND
[../]
[./disp_y]
block = '1 2'
# order = SECOND
[../]
[./frictional_normal_lm]
block = 3
# family = MONOMIAL
# order = CONSTANT
[../]
[./frictional_tangential_lm]
block = 3
family = MONOMIAL
order = CONSTANT
[../]
[]
[ICs]
[./disp_y]
block = 2
variable = disp_y
value = ${fparse starting_point + offset}
type = ConstantIC
[../]
[]
[Kernels]
[./disp_x]
type = MatDiffusion
variable = disp_x
[../]
[./disp_y]
type = MatDiffusion
variable = disp_y
[../]
[]
[Constraints]
[frictional_normal_lm]
type = NormalNodalLMMechanicalContact
secondary = 10
primary = 20
variable = frictional_normal_lm
primary_variable = disp_x
disp_y = disp_y
ncp_function_type = min
[../]
[normal_x]
type = NormalMortarMechanicalContact
primary_boundary = 20
secondary_boundary = 10
primary_subdomain = 4
secondary_subdomain = 3
variable = frictional_normal_lm
secondary_variable = disp_x
component = x
use_displaced_mesh = true
compute_lm_residuals = false
[]
[normal_y]
type = NormalMortarMechanicalContact
primary_boundary = 20
secondary_boundary = 10
primary_subdomain = 4
secondary_subdomain = 3
variable = frictional_normal_lm
secondary_variable = disp_y
component = y
use_displaced_mesh = true
compute_lm_residuals = false
[]
[frictional_tangential_lm]
type = TangentialMortarLMMechanicalContact
primary_boundary = 20
secondary_boundary = 10
primary_subdomain = 4
secondary_subdomain = 3
variable = frictional_tangential_lm
secondary_variable = disp_x
secondary_disp_y = disp_y
use_displaced_mesh = true
compute_primal_residuals = false
contact_pressure = frictional_normal_lm
friction_coefficient = .1
ncp_function_type = fb
[]
[tangential_x]
type = TangentialMortarMechanicalContact
primary_boundary = 20
secondary_boundary = 10
primary_subdomain = 4
secondary_subdomain = 3
variable = frictional_tangential_lm
secondary_variable = disp_x
component = x
use_displaced_mesh = true
compute_lm_residuals = false
[]
[tangential_y]
type = TangentialMortarMechanicalContact
primary_boundary = 20
secondary_boundary = 10
primary_subdomain = 4
secondary_subdomain = 3
variable = frictional_tangential_lm
secondary_variable = disp_y
component = y
use_displaced_mesh = true
compute_lm_residuals = false
[]
[]
[BCs]
[./botx]
type = DirichletBC
variable = disp_x
boundary = 40
value = 0.0
[../]
[./boty]
type = DirichletBC
variable = disp_y
boundary = 40
value = 0.0
[../]
[./topy]
type = FunctionDirichletBC
variable = disp_y
boundary = 30
function = '${starting_point} * cos(2 * pi / 40 * t) + ${offset}'
[../]
[./leftx]
type = FunctionDirichletBC
variable = disp_x
boundary = 50
function = '1e-2 * t'
[../]
[]
[Executioner]
type = Transient
end_time = 200
dt = 5
dtmin = .1
solve_type = 'PJFNK'
petsc_options = '-snes_converged_reason -ksp_converged_reason -pc_svd_monitor -snes_linesearch_monitor -snes_ksp_ew'
petsc_options_iname = '-pc_type -pc_factor_shift_type -pc_factor_shift_amount -mat_mffd_err'
petsc_options_value = 'lu NONZERO 1e-15 1e-5'
l_max_its = 30
nl_max_its = 20
line_search = 'none'
snesmf_reuse_base = false
# [./Predictor]
# type = SimplePredictor
# scale = 1.0
# [../]
[]
[Debug]
show_var_residual_norms = true
[]
[Outputs]
exodus = true
# checkpoint = true
# [./dofmap]
# type = DOFMap
# execute_on = 'initial'
# [../]
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Postprocessors]
[./num_nl]
type = NumNonlinearIterations
[../]
[./cumulative]
type = CumulativeValuePostprocessor
postprocessor = num_nl
[../]
[contact]
type = ContactDOFSetSize
variable = frictional_normal_lm
subdomain = '3'
execute_on = 'nonlinear timestep_end'
[]
[]
(modules/contact/test/tests/bouncing-block-contact/frictionless-nodal-min-lm-mortar-disp.i)
starting_point = 2e-1
offset = 1e-2
[GlobalParams]
displacements = 'disp_x disp_y'
diffusivity = 1e0
scaling = 1e0
[]
[Mesh]
file = long-bottom-block-1elem-blocks.e
[]
[Variables]
[./disp_x]
block = '1 2'
[../]
[./disp_y]
block = '1 2'
[../]
[./normal_lm]
block = 3
[../]
[]
[ICs]
[./disp_y]
block = 2
variable = disp_y
value = ${fparse starting_point + offset}
type = ConstantIC
[../]
[]
[Kernels]
[./disp_x]
type = MatDiffusion
variable = disp_x
[../]
[./disp_y]
type = MatDiffusion
variable = disp_y
[../]
[]
[Constraints]
[./lm]
type = NormalNodalLMMechanicalContact
secondary = 10
primary = 20
variable = normal_lm
primary_variable = disp_x
disp_y = disp_y
[../]
[normal_x]
type = NormalMortarMechanicalContact
primary_boundary = 20
secondary_boundary = 10
primary_subdomain = 4
secondary_subdomain = 3
variable = normal_lm
secondary_variable = disp_x
component = x
use_displaced_mesh = true
compute_lm_residuals = false
[]
[normal_y]
type = NormalMortarMechanicalContact
primary_boundary = 20
secondary_boundary = 10
primary_subdomain = 4
secondary_subdomain = 3
variable = normal_lm
secondary_variable = disp_y
component = y
use_displaced_mesh = true
compute_lm_residuals = false
[]
[]
[BCs]
[./botx]
type = DirichletBC
variable = disp_x
boundary = 40
value = 0.0
[../]
[./boty]
type = DirichletBC
variable = disp_y
boundary = 40
value = 0.0
[../]
[./topy]
type = FunctionDirichletBC
variable = disp_y
boundary = 30
function = '${starting_point} * cos(2 * pi / 40 * t) + ${offset}'
[../]
[./leftx]
type = FunctionDirichletBC
variable = disp_x
boundary = 50
function = '1e-2 * t'
[../]
[]
[Executioner]
type = Transient
end_time = 200
dt = 5
dtmin = .1
solve_type = 'PJFNK'
petsc_options = '-snes_converged_reason -ksp_converged_reason -pc_svd_monitor -snes_linesearch_monitor'
petsc_options_iname = '-pc_type -pc_factor_shift_type -pc_factor_shift_amount -mat_mffd_err'
petsc_options_value = 'lu NONZERO 1e-15 1e-5'
l_max_its = 30
nl_max_its = 20
line_search = 'none'
snesmf_reuse_base = false
[]
[Debug]
show_var_residual_norms = true
[]
[Outputs]
exodus = true
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Postprocessors]
active = 'num_nl cumulative contact'
[./num_nl]
type = NumNonlinearIterations
[../]
[./cumulative]
type = CumulativeValuePostprocessor
postprocessor = num_nl
[../]
[contact]
type = ContactDOFSetSize
variable = normal_lm
subdomain = '3'
execute_on = 'nonlinear timestep_end'
[]
[]
(modules/contact/test/tests/sliding_block/in_and_out/frictional_lm.i)
[Mesh]
patch_size = 80
[file]
type = FileMeshGenerator
file = sliding_elastic_blocks_2d.e
[]
[secondary]
input = file
type = LowerDBlockFromSidesetGenerator
sidesets = '3'
new_block_id = '30'
[]
[primary]
input = secondary
type = LowerDBlockFromSidesetGenerator
sidesets = '2'
new_block_id = '20'
[]
[]
[GlobalParams]
volumetric_locking_correction = false
displacements = 'disp_x disp_y'
[]
[Variables]
[normal_lm]
block = '30'
[]
[tangential_lm]
block = '30'
family = MONOMIAL
order = CONSTANT
[]
[]
[BCs]
[./left_x]
type = DirichletBC
variable = disp_x
boundary = 1
value = 0.0
[../]
[./left_y]
type = DirichletBC
variable = disp_y
boundary = 1
value = 0.0
[../]
[./right_x]
type = FunctionDirichletBC
variable = disp_x
boundary = 4
function = horizontal_movement
[../]
[./right_y]
type = FunctionDirichletBC
variable = disp_y
boundary = 4
function = vertical_movement
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
add_variables = true
strain = FINITE
block = '1 2'
[../]
[]
[Materials]
[./tensor]
type = ComputeIsotropicElasticityTensor
block = '1 2'
youngs_modulus = 1e6
poissons_ratio = 0.3
constant_on = SUBDOMAIN
[../]
[./stress]
type = ComputeFiniteStrainElasticStress
block = '1 2'
[../]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options = '-snes_converged_reason -ksp_converged_reason -snes_ksp_ew'
petsc_options_iname = '-pc_type -mat_mffd_err -pc_factor_shift_type -pc_factor_shift_amount'
petsc_options_value = 'lu 1e-5 NONZERO 1e-15'
end_time = 15
dt = 0.1
dtmin = 0.01
l_max_its = 30
nl_max_its = 20
line_search = 'none'
timestep_tolerance = 1e-6
snesmf_reuse_base = false
[./Predictor]
type = SimplePredictor
scale = 1.0
[../]
[]
[Debug]
show_var_residual_norms = true
[]
[Outputs]
sync_times = '1 2 3 4 5 6 7 8 9 10 11 12 13 14 15'
[out]
type = Exodus
sync_only = true
[]
[dof]
execute_on = 'initial'
type = DOFMap
[]
[csv]
type = CSV
execute_on = 'nonlinear timestep_end'
[]
[]
[Functions]
[./vertical_movement]
type = ParsedFunction
value = -t
[../]
[./horizontal_movement]
type = ParsedFunction
value = -0.04*sin(4*t)+0.02
[../]
[]
[Constraints]
[./lm]
type = NormalNodalLMMechanicalContact
secondary = 3
primary = 2
variable = normal_lm
primary_variable = disp_x
disp_y = disp_y
ncp_function_type = min
use_displaced_mesh = true
c = 1e6 # relative scale difference between pressure and gap
[../]
[normal_x]
type = NormalMortarMechanicalContact
primary_boundary = '2'
secondary_boundary = '3'
primary_subdomain = '20'
secondary_subdomain = '30'
variable = normal_lm
secondary_variable = disp_x
component = x
use_displaced_mesh = true
compute_lm_residuals = false
[]
[normal_y]
type = NormalMortarMechanicalContact
primary_boundary = '2'
secondary_boundary = '3'
primary_subdomain = '20'
secondary_subdomain = '30'
variable = normal_lm
secondary_variable = disp_y
component = y
use_displaced_mesh = true
compute_lm_residuals = false
[]
[tangential_lm]
type = TangentialMortarLMMechanicalContact
primary_boundary = '2'
secondary_boundary = '3'
primary_subdomain = '20'
secondary_subdomain = '30'
variable = tangential_lm
secondary_variable = disp_x
secondary_disp_y = disp_y
use_displaced_mesh = true
compute_primal_residuals = false
contact_pressure = normal_lm
friction_coefficient = .4
ncp_function_type = fb
c = 1000 # relative scale difference between pressure and velocity
[]
[tangential_x]
type = TangentialMortarMechanicalContact
primary_boundary = '2'
secondary_boundary = '3'
primary_subdomain = '20'
secondary_subdomain = '30'
variable = tangential_lm
secondary_variable = disp_x
component = x
use_displaced_mesh = true
compute_lm_residuals = false
[]
[tangential_y]
type = TangentialMortarMechanicalContact
primary_boundary = '2'
secondary_boundary = '3'
primary_subdomain = '20'
secondary_subdomain = '30'
variable = tangential_lm
secondary_variable = disp_y
component = y
use_displaced_mesh = true
compute_lm_residuals = false
[]
[]
[Postprocessors]
[./num_nl]
type = NumNonlinearIterations
[../]
[./cumulative]
type = CumulativeValuePostprocessor
postprocessor = num_nl
[../]
[lin]
type = NumLinearIterations
[]
[cum_lin]
type = CumulativeValuePostprocessor
postprocessor = lin
[]
[contact]
type = ContactDOFSetSize
variable = normal_lm
subdomain = '30'
execute_on = 'nonlinear timestep_end'
[]
[]
(modules/contact/test/tests/bouncing-block-contact/grid-sequencing/grid-sequencing.i)
starting_point = 2e-1
# We offset slightly so we avoid the case where the bottom of the secondary block and the top of the
# primary block are perfectly vertically aligned which can cause the backtracking line search some
# issues for a coarsest mesh (basic line search handles that fine)
offset = 1e-2
[GlobalParams]
displacements = 'disp_x disp_y'
diffusivity = 1e0
[]
[Mesh]
file = level0.e
[]
[Variables]
[./disp_x]
block = '1 2'
[../]
[./disp_y]
block = '1 2'
[../]
[./normal_lm]
block = 3
[../]
[./tangential_lm]
block = 3
family = MONOMIAL
order = CONSTANT
[../]
[]
[ICs]
[./disp_y]
block = 2
variable = disp_y
value = ${fparse starting_point + offset}
type = ConstantIC
[../]
[]
[Kernels]
[./disp_x]
type = MatDiffusion
variable = disp_x
[../]
[./disp_y]
type = MatDiffusion
variable = disp_y
[../]
[]
[Constraints]
[normal_lm]
type = NormalNodalLMMechanicalContact
secondary = 10
primary = 20
variable = normal_lm
primary_variable = disp_x
disp_y = disp_y
ncp_function_type = min
[../]
[normal_x]
type = NormalMortarMechanicalContact
primary_boundary = 20
secondary_boundary = 10
primary_subdomain = 4
secondary_subdomain = 3
variable = normal_lm
secondary_variable = disp_x
component = x
use_displaced_mesh = true
compute_lm_residuals = false
[]
[normal_y]
type = NormalMortarMechanicalContact
primary_boundary = 20
secondary_boundary = 10
primary_subdomain = 4
secondary_subdomain = 3
variable = normal_lm
secondary_variable = disp_y
component = y
use_displaced_mesh = true
compute_lm_residuals = false
[]
[tangential_lm]
type = TangentialMortarLMMechanicalContact
primary_boundary = 20
secondary_boundary = 10
primary_subdomain = 4
secondary_subdomain = 3
variable = tangential_lm
secondary_variable = disp_x
secondary_disp_y = disp_y
use_displaced_mesh = true
compute_primal_residuals = false
contact_pressure = normal_lm
friction_coefficient = .1
ncp_function_type = fb
[]
[tangential_x]
type = TangentialMortarMechanicalContact
primary_boundary = 20
secondary_boundary = 10
primary_subdomain = 4
secondary_subdomain = 3
variable = tangential_lm
secondary_variable = disp_x
component = x
use_displaced_mesh = true
compute_lm_residuals = false
[]
[tangential_y]
type = TangentialMortarMechanicalContact
primary_boundary = 20
secondary_boundary = 10
primary_subdomain = 4
secondary_subdomain = 3
variable = tangential_lm
secondary_variable = disp_y
component = y
use_displaced_mesh = true
compute_lm_residuals = false
[]
[]
[BCs]
[./botx]
type = DirichletBC
variable = disp_x
boundary = 40
value = 0.0
[../]
[./boty]
type = DirichletBC
variable = disp_y
boundary = 40
value = 0.0
[../]
[./topy]
type = FunctionDirichletBC
variable = disp_y
boundary = 30
function = '${starting_point} * cos(2 * pi / 40 * t) + ${offset}'
[../]
[./leftx]
type = FunctionDirichletBC
variable = disp_x
boundary = 50
function = '1e-2 * t'
[../]
[]
[Executioner]
type = Transient
end_time = 200
num_steps = 3
dt = 5
dtmin = .1
solve_type = 'PJFNK'
petsc_options = '-snes_converged_reason -ksp_converged_reason -snes_linesearch_monitor'
petsc_options_iname = '-pc_type -pc_factor_shift_type -pc_factor_shift_amount -mat_mffd_err'
petsc_options_value = 'lu NONZERO 1e-15 1e-5'
l_max_its = 30
nl_max_its = 20
line_search = 'none'
nl_abs_tol = 1e-10
num_grids = 5
snesmf_reuse_base = false
[]
[Debug]
show_var_residual_norms = true
[]
[Outputs]
[exo]
type = Exodus
sync_times = '15'
sync_only = true
[]
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Postprocessors]
[./num_nl]
type = NumNonlinearIterations
[../]
[./cumulative]
type = CumulativeValuePostprocessor
postprocessor = num_nl
[../]
[contact]
type = ContactDOFSetSize
variable = normal_lm
subdomain = '3'
execute_on = 'nonlinear timestep_end'
[]
[]
(modules/contact/test/tests/mechanical-small-problem/frictionless-nodal-lm-mortar-disp.i)
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Mesh]
[./simple_mesh]
type = FileMeshGenerator
file = mesh.e
[../]
[./primary]
type = LowerDBlockFromSidesetGenerator
input = simple_mesh
sidesets = '2'
new_block_id = '3'
[../]
[./secondary]
type = LowerDBlockFromSidesetGenerator
input = primary
sidesets = '1'
new_block_id = '4'
[../]
[]
[Constraints]
[./lm]
type = NormalNodalLMMechanicalContact
secondary = 1
primary = 2
variable = frictionless_normal_lm
primary_variable = disp_x
disp_y = disp_y
[../]
[x]
type = NormalMortarMechanicalContact
primary_boundary = '2'
secondary_boundary = '1'
primary_subdomain = '3'
secondary_subdomain = '4'
variable = frictionless_normal_lm
secondary_variable = disp_x
component = x
use_displaced_mesh = true
compute_lm_residuals = false
[]
[y]
type = NormalMortarMechanicalContact
primary_boundary = '2'
secondary_boundary = '1'
primary_subdomain = '3'
secondary_subdomain = '4'
variable = frictionless_normal_lm
secondary_variable = disp_y
component = y
use_displaced_mesh = true
compute_lm_residuals = false
[]
[]
[Variables]
[./disp_x]
block = '1 2'
[../]
[./disp_y]
block = '1 2'
[../]
[./frictionless_normal_lm]
block = 4
[../]
[]
[BCs]
[./left_x]
type = DirichletBC
variable = disp_x
boundary = 'outside_left'
value = 0.0
[../]
[./left_y]
type = DirichletBC
variable = disp_y
boundary = 'outside_left'
value = 0.0
[../]
[./right_x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'outside_right'
function = '-5e-3 * t'
[../]
[./right_y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'outside_right'
function = 0
[../]
[]
[Kernels]
[disp_x]
type = Diffusion
variable = disp_x
block = '1 2'
[]
[disp_y]
type = Diffusion
variable = disp_y
block = '1 2'
[]
[]
[Debug]
show_var_residual_norms = 1
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
solve_type = PJFNK
type = Transient
num_steps = 10
dt = 1
dtmin = 1
petsc_options_iname = '-pc_type -snes_linesearch_type -pc_factor_shift_type -pc_factor_shift_amount'
petsc_options_value = 'lu basic NONZERO 1e-15'
[]
[Outputs]
exodus = true
[]
[Postprocessors]
[contact]
type = ContactDOFSetSize
variable = frictionless_normal_lm
subdomain = '4'
execute_on = 'nonlinear timestep_end'
[]
[]
(modules/contact/test/tests/bouncing-block-contact/frictionless-nodal-min-lm-nodal-disp.i)
starting_point = 2e-1
offset = 1e-2
[GlobalParams]
displacements = 'disp_x disp_y'
diffusivity = 1e0
scaling = 1e0
[]
[Mesh]
file = long-bottom-block-1elem-blocks.e
[]
[Problem]
kernel_coverage_check = false
[]
[Variables]
[./disp_x]
block = '1 2'
[../]
[./disp_y]
block = '1 2'
[../]
[./normal_lm]
block = 3
[../]
[]
[ICs]
[./disp_y]
block = 2
variable = disp_y
value = ${fparse starting_point + offset}
type = ConstantIC
[../]
[]
[Kernels]
[./disp_x]
type = MatDiffusion
variable = disp_x
[../]
[./disp_y]
type = MatDiffusion
variable = disp_y
[../]
[]
[Constraints]
[./lm]
type = NormalNodalLMMechanicalContact
secondary = 10
primary = 20
variable = normal_lm
primary_variable = disp_x
disp_y = disp_y
[../]
[./disp_x]
type = NormalNodalMechanicalContact
secondary = 10
primary = 20
variable = disp_x
primary_variable = disp_x
lambda = normal_lm
component = x
[../]
[./disp_y]
type = NormalNodalMechanicalContact
secondary = 10
primary = 20
variable = disp_y
primary_variable = disp_y
lambda = normal_lm
component = y
[../]
[]
[BCs]
[./botx]
type = DirichletBC
variable = disp_x
boundary = 40
value = 0.0
[../]
[./boty]
type = DirichletBC
variable = disp_y
boundary = 40
value = 0.0
[../]
[./topy]
type = FunctionDirichletBC
variable = disp_y
boundary = 30
function = '${starting_point} * cos(2 * pi / 40 * t) + ${offset}'
[../]
[./leftx]
type = FunctionDirichletBC
variable = disp_x
boundary = 50
function = '1e-2 * t'
[../]
[]
[Executioner]
type = Transient
end_time = 200
dt = 5
dtmin = .1
solve_type = 'PJFNK'
petsc_options = '-snes_converged_reason -ksp_converged_reason -pc_svd_monitor -snes_linesearch_monitor'
petsc_options_iname = '-pc_type -pc_factor_shift_type -pc_factor_shift_amount -mat_mffd_err'
petsc_options_value = 'lu NONZERO 1e-15 1e-5'
l_max_its = 30
nl_max_its = 20
line_search = 'none'
snesmf_reuse_base = false
[]
[Debug]
show_var_residual_norms = true
[]
[Outputs]
exodus = true
[dof]
type = DOFMap
execute_on = 'initial'
[]
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Postprocessors]
active = 'num_nl cumulative contact'
[./num_nl]
type = NumNonlinearIterations
[../]
[./cumulative]
type = CumulativeValuePostprocessor
postprocessor = num_nl
[../]
[contact]
type = ContactDOFSetSize
variable = normal_lm
subdomain = '3'
execute_on = 'nonlinear timestep_end'
[]
[]