class SPAlgorithm(Algorithm):
def __init__(self):
super(SPAlgorithm, self).__init__()
sp_parameters_file_name = "SPParameters.json"
with open(sp_parameters_file_name, 'r') as parameter_file:
self.sp_parameters = Kratos.Parameters(parameter_file.read())
self.ValidateSettings()
self.test_number = self.sp_parameters["problem_data"][
"test_number"].GetInt()
# Test types (4 different options):
# Test number 0: no test simulation
# Test number 1: CTW16 specimen
# Test number 2: CTW10 specimen
# Test number 3: Blind test specimen
self.post_process_step_count = 0
self.post_process_frequency = self.sp_parameters["post_process_tool"][
"output_frequency"].GetInt()
self.post_process_write_count = self.post_process_frequency
@classmethod
def GetDefaultSettings(cls):
"""This function returns the default-settings used by this class
"""
return Kratos.Parameters("""{
"problem_data" : {
"test_number" : 1,
"center" : [0.0,0.0,0.0],
"axis" : [0.0,0.0,1.0]
},
"post_process_tool":{
"output_frequency": 0
}
}""")
def ValidateSettings(self):
"""This function validates the settings of the solver
"""
default_settings = self.GetDefaultSettings()
self.sp_parameters.ValidateAndAssignDefaults(default_settings)
def Initialize(self):
super(SPAlgorithm, self).Initialize()
self.InitializeAdditionalProcessInfoVars()
if self.test_number:
from KratosMultiphysics.DemStructuresCouplingApplication.control_module_fem_dem_utility import ControlModuleFemDemUtility
self.control_module_fem_dem_utility = ControlModuleFemDemUtility(
self.model, self.dem_solution.spheres_model_part,
self.test_number)
self.control_module_fem_dem_utility.ExecuteInitialize()
# Create Postprocess tool for SP
from KratosMultiphysics.DemStructuresCouplingApplication.sand_production_post_process_tool import SandProductionPostProcessTool
self.sp_post_process_tool = SandProductionPostProcessTool(
self.structural_solution._GetSolver().GetComputingModelPart(),
self.dem_solution.spheres_model_part, self.test_number)
from KratosMultiphysics.DemStructuresCouplingApplication import stress_failure_check_utility
self.stress_failure_check_utility = stress_failure_check_utility.StressFailureCheckUtility(
self.dem_solution.spheres_model_part, self.test_number)
def InitializeAdditionalProcessInfoVars(self):
self.dem_solution.spheres_model_part.ProcessInfo.SetValue(
SIGMA_3_AVERAGE, 0.0)
def RunSolutionLoop(self):
self.dem_solution.step = 0
self.dem_solution.time = 0.0
self.dem_solution.time_old_print = 0.0
self.time_dem = 0.0
self.Dt_structural = self.structural_solution._GetSolver(
).settings["time_stepping"]["time_step"].GetDouble()
while self.structural_solution.time < self.structural_solution.end_time:
portion_of_the_force_which_is_new = 0.4
DemFem.DemStructuresCouplingUtilities().SmoothLoadTrasferredToFem(
self.dem_solution.rigid_face_model_part,
portion_of_the_force_which_is_new)
self.structural_solution.time = self.structural_solution._GetSolver(
).AdvanceInTime(self.structural_solution.time)
self.structural_solution.InitializeSolutionStep()
if self.test_number:
self.control_module_fem_dem_utility.ExecuteInitializeSolutionStep(
)
self.structural_solution._GetSolver().Predict()
self.structural_solution._GetSolver().SolveSolutionStep()
self.structural_solution.FinalizeSolutionStep()
self.structural_solution.OutputSolutionStep()
time_final_DEM_substepping = self.structural_solution.time
self.Dt_DEM = self.dem_solution.spheres_model_part.ProcessInfo.GetValue(
Kratos.DELTA_TIME)
DemFem.InterpolateStructuralSolutionForDEM(
).SaveStructuralSolution(self.structural_mp)
DemFem.ComputeDEMFaceLoadUtility().ClearDEMFaceLoads(self.skin_mp)
if self.test_number == 1 or self.test_number == 2:
self.outer_walls_model_part = self.model[
"Structure.SurfacePressure3D_lateral_pressure"]
DemFem.DemStructuresCouplingUtilities(
).ComputeSandProductionWithDepthFirstSearch(
self.dem_solution.spheres_model_part,
self.outer_walls_model_part, self.structural_solution.time)
DemFem.DemStructuresCouplingUtilities().ComputeSandProduction(
self.dem_solution.spheres_model_part,
self.outer_walls_model_part, self.structural_solution.time)
elif self.test_number == 3:
self.outer_walls_model_part_1 = self.model[
"Structure.SurfacePressure3D_sigmaXpos"]
self.outer_walls_model_part_2 = self.model[
"Structure.SurfacePressure3D_sigmaYpos"]
DemFem.DemStructuresCouplingUtilities(
).ComputeTriaxialSandProduction(
self.dem_solution.spheres_model_part,
self.outer_walls_model_part_1,
self.outer_walls_model_part_2,
self.structural_solution.time)
for self.dem_solution.time_dem in self.yield_DEM_time(
self.dem_solution.time, time_final_DEM_substepping,
self.Dt_DEM):
self.dem_solution.time = self.dem_solution.time + self.dem_solution._GetSolver(
).dt
self.dem_solution.step += 1
self.dem_solution.DEMFEMProcedures.UpdateTimeInModelParts(
self.dem_solution.all_model_parts, self.dem_solution.time,
self.dem_solution._GetSolver().dt, self.dem_solution.step)
self.dem_solution.InitializeSolutionStep()
self.dem_solution._GetSolver().Predict()
DemFem.InterpolateStructuralSolutionForDEM(
).InterpolateStructuralSolution(
self.structural_mp, self.Dt_structural,
self.structural_solution.time,
self.dem_solution._GetSolver().dt, self.dem_solution.time)
self.dem_solution.SolverSolve()
DemFem.DemStructuresCouplingUtilities().MarkBrokenSpheres(
self.dem_solution.spheres_model_part)
center = Kratos.Array3()
center[0] = self.sp_parameters["problem_data"]["center"][
0].GetDouble()
center[1] = self.sp_parameters["problem_data"]["center"][
1].GetDouble()
center[2] = self.sp_parameters["problem_data"]["center"][
2].GetDouble()
axis = Kratos.Array3()
axis[0] = self.sp_parameters["problem_data"]["axis"][
0].GetDouble()
axis[1] = self.sp_parameters["problem_data"]["axis"][
1].GetDouble()
axis[2] = self.sp_parameters["problem_data"]["axis"][
2].GetDouble()
radius = 0
if self.test_number == 1:
radius = 0.0036195
#95% of the real hole. CTW16 specimen
elif self.test_number == 2:
radius = 0.012065
#95% of the real hole. CTW10 specimen
elif self.test_number == 3:
radius = 0.036195
#95% of the real hole. Blind Test
self.dem_solution.creator_destructor.MarkParticlesForErasingGivenCylinder(
self.dem_solution.spheres_model_part, center, axis, radius)
self.dem_solution.FinalizeSolutionStep()
DemFem.ComputeDEMFaceLoadUtility().CalculateDEMFaceLoads(
self.skin_mp,
self.dem_solution._GetSolver().dt, self.Dt_structural)
#### PRINTING GRAPHS ####
os.chdir(self.dem_solution.graphs_path)
self.dem_solution.post_utils.ComputeMeanVelocitiesInTrap(
"Average_Velocity.txt", self.dem_solution.time,
self.dem_solution.graphs_path)
self.dem_solution.materialTest.MeasureForcesAndPressure()
self.dem_solution.materialTest.PrintGraph(
self.dem_solution.time)
self.dem_solution.DEMFEMProcedures.PrintGraph(
self.dem_solution.time)
self.dem_solution.DEMFEMProcedures.PrintBallsGraph(
self.dem_solution.time)
self.dem_solution.DEMEnergyCalculator.CalculateEnergyAndPlot(
self.dem_solution.time)
self.dem_solution.BeforePrintingOperations(
self.dem_solution.time)
#### GiD IO ##########################################
if self.dem_solution.IsTimeToPrintPostProcess():
self.dem_solution._GetSolver().PrepareElementsForPrinting()
if self.dem_solution.DEM_parameters[
"ContactMeshOption"].GetBool():
self.dem_solution._GetSolver(
).PrepareContactElementsForPrinting()
self.dem_solution.PrintResultsForGid(
self.dem_solution.time)
self.dem_solution.demio.PrintMultifileLists(
self.dem_solution.time, self.dem_solution.post_path)
self.dem_solution.time_old_print = self.dem_solution.time
if self.test_number:
self.stress_failure_check_utility.ExecuteFinalizeSolutionStep(
)
self.dem_solution.FinalizeTimeStep(self.dem_solution.time)
DemFem.InterpolateStructuralSolutionForDEM(
).RestoreStructuralSolution(self.structural_mp)
if self.test_number:
self.control_module_fem_dem_utility.ExecuteFinalizeSolutionStep(
)
# Write SP data
if self.IsPostProcessWriteStep():
self.sp_post_process_tool.WriteData()
def IsPostProcessWriteStep(self):
self.post_process_step_count += 1
if self.post_process_step_count == self.post_process_write_count:
self.post_process_write_count += self.post_process_frequency
return True
else:
return False
class SPAlgorithm(Algorithm):
def __init__(self):
super(SPAlgorithm,self).__init__()
sp_parameters_file_name = "SPParameters.json"
with open(sp_parameters_file_name,'r') as parameter_file:
self.sp_parameters = Kratos.Parameters(parameter_file.read())
self.ValidateSettings()
self.test_number = self.sp_parameters["problem_data"]["test_number"].GetInt()
# Test types (4 different options):
# Test number 0: no test simulation
# Test number 1: CTW16 specimen
# Test number 2: CTW10 specimen
# Test number 3: Blind test specimen
self.post_process_step_count = 0
self.post_process_frequency = self.sp_parameters["post_process_tool"]["output_interval"].GetInt()
self.use_post_process_tool = self.sp_parameters["post_process_tool"]["use_post_process_tool"].GetBool()
if not self.use_post_process_tool:
self.post_process_frequency = 0
self.post_process_write_count = self.post_process_frequency
@classmethod
def GetDefaultParameters(cls):
"""This function returns the default-settings used by this class
"""
return Kratos.Parameters("""{
"problem_data" : {
"test_number" : 1,
"center" : [0.0,0.0,0.0],
"axis" : [0.0,0.0,1.0],
"sp_radius": 0.042
},
"post_process_tool":{
"use_post_process_tool": false,
"output_interval": 0
},
"multiaxial_control_module_fem_dem_generalized_2d_utility" : {
"Parameters" : {
"control_module_delta_time": 2.0e-6,
"perturbation_tolerance": 1.0e-3,
"perturbation_period": 10,
"max_reaction_rate_factor": 10.0,
"stiffness_averaging_time_interval": 2.0e-6,
"velocity_averaging_time_interval": 2.0e-6,
"reaction_averaging_time_interval": 2.0e-8,
"output_interval": 0
},
"list_of_actuators" : []
}
}""")
# This function can be extended with new deprecated variables as they are generated
def TranslateLegacyVariablesAccordingToCurrentStandard(self, settings):
# Defining a string to help the user understand where the warnings come from (in case any is thrown)
context_string = type(self).__name__
if settings.Has('post_process_tool'):
sub_settings_where_var_is = settings['post_process_tool']
old_name = 'output_frequency'
new_name = 'output_interval'
if DeprecationManager.HasDeprecatedVariable(context_string, sub_settings_where_var_is, old_name, new_name):
DeprecationManager.ReplaceDeprecatedVariableName(sub_settings_where_var_is, old_name, new_name)
def ValidateSettings(self):
"""This function validates the settings of the solver
"""
default_settings = self.GetDefaultParameters()
self.TranslateLegacyVariablesAccordingToCurrentStandard(self.sp_parameters)
self.sp_parameters.ValidateAndAssignDefaults(default_settings)
def Initialize(self):
super(SPAlgorithm,self).Initialize()
self.InitializeAdditionalProcessInfoVars()
from KratosMultiphysics.DemStructuresCouplingApplication.multiaxial_control_module_fem_dem_generalized_2d_utility import MultiaxialControlModuleFEMDEMGeneralized2DUtility
self.multiaxial_control_module = MultiaxialControlModuleFEMDEMGeneralized2DUtility(self.model, self.sp_parameters)
self.multiaxial_control_module.ExecuteInitialize()
# if self.test_number:
# from KratosMultiphysics.DemStructuresCouplingApplication.control_module_fem_dem_utility import ControlModuleFemDemUtility
# self.control_module_fem_dem_utility = ControlModuleFemDemUtility(self.model, self.dem_solution.spheres_model_part, self.test_number)
# self.control_module_fem_dem_utility.ExecuteInitialize()
self.CreateSPMeasuringRingSubmodelpart()
# Create Postprocess tool for SP
if self.use_post_process_tool:
from KratosMultiphysics.DemStructuresCouplingApplication.sand_production_post_process_tool import SandProductionPostProcessTool
self.sp_post_process_tool = SandProductionPostProcessTool(self.structural_solution._GetSolver().GetComputingModelPart(),
self.dem_solution.spheres_model_part,
self.test_number)
from KratosMultiphysics.DemStructuresCouplingApplication import stress_failure_check_utility
self.stress_failure_check_utility = stress_failure_check_utility.StressFailureCheckUtility(self.dem_solution.spheres_model_part, self.test_number)
def CreateSPMeasuringRingSubmodelpart(self):
if not self.dem_solution.spheres_model_part.HasSubModelPart("RingSubmodelPart"):
self.dem_solution.spheres_model_part.CreateSubModelPart('RingSubmodelPart')
self.ring_submodelpart = self.dem_solution.spheres_model_part.GetSubModelPart('RingSubmodelPart')
zone_radius_to_measure_2d_sp = self.sp_parameters["problem_data"]["sp_radius"].GetDouble()
nodes_in_zone_radius_list = []
elements_in_zone_radius_list = []
for element in self.dem_solution.spheres_model_part.Elements:
node = element.GetNode(0)
x = node.X
y = node.Y
if (x * x + y * y) < zone_radius_to_measure_2d_sp * zone_radius_to_measure_2d_sp:
nodes_in_zone_radius_list.append(node.Id)
elements_in_zone_radius_list.append(element.Id)
self.ring_submodelpart.AddNodes(nodes_in_zone_radius_list)
self.ring_submodelpart.AddElements(elements_in_zone_radius_list)
def InitializeAdditionalProcessInfoVars(self):
self.dem_solution.spheres_model_part.ProcessInfo.SetValue(Dem.SIGMA_3_AVERAGE, 0.0)
def _TransferStructuresSkinToDem(self):
self.structural_mp = self.structural_solution._GetSolver().GetComputingModelPart()
self.skin_mp = self.structural_mp.GetSubModelPart("DetectedByProcessSkinModelPart")
# dem_walls_mp = self.dem_solution.rigid_face_model_part.CreateSubModelPart("SkinTransferredFromStructure")
dem_walls_mp = self.dem_solution.rigid_face_model_part
max_prop_id = 0
for prop in dem_walls_mp.Properties:
if prop.Id > max_prop_id:
max_prop_id = prop.Id
props = Kratos.Properties(max_prop_id + 1)
# NOTE: this should be more general
props[Dem.FRICTION] = 0.2
props[Dem.WALL_COHESION] = 0.0
props[Dem.COMPUTE_WEAR] = False
props[Dem.SEVERITY_OF_WEAR] = 0.001
props[Dem.IMPACT_WEAR_SEVERITY] = 0.001
props[Dem.BRINELL_HARDNESS] = 200.0
props[Kratos.YOUNG_MODULUS] = 7e9
props[Kratos.POISSON_RATIO] = 0.16
dem_walls_mp.AddProperties(props)
DemFem.DemStructuresCouplingUtilities().TransferStructuresSkinToDem(self.skin_mp, dem_walls_mp, props)
def RunSolutionLoop(self):
self.dem_solution.step = 0
self.dem_solution.time = 0.0
self.dem_solution.time_old_print = 0.0
self.time_dem = 0.0
self.Dt_structural = self.structural_solution._GetSolver().settings["time_stepping"]["time_step"].GetDouble()
while self.structural_solution.time < self.structural_solution.end_time:
portion_of_the_force_which_is_new = 0.1
DemFem.DemStructuresCouplingUtilities().SmoothLoadTrasferredToFem(self.dem_solution.rigid_face_model_part, portion_of_the_force_which_is_new)
self.structural_solution.time = self.structural_solution._GetSolver().AdvanceInTime(self.structural_solution.time)
# if self.test_number:
# self.control_module_fem_dem_utility.ExecuteInitializeSolutionStep()
self.multiaxial_control_module.ExecuteInitializeSolutionStep()
self.structural_solution.InitializeSolutionStep()
self.structural_solution._GetSolver().Predict()
self.structural_solution._GetSolver().SolveSolutionStep()
time_final_DEM_substepping = self.structural_solution.time
self.Dt_DEM = self.dem_solution.spheres_model_part.ProcessInfo.GetValue(Kratos.DELTA_TIME)
DemFem.InterpolateStructuralSolutionForDEM().SaveStructuralSolution(self.structural_mp)
DemFem.ComputeDEMFaceLoadUtility().ClearDEMFaceLoads(self.skin_mp)
for self.dem_solution.time_dem in self.yield_DEM_time(self.dem_solution.time, time_final_DEM_substepping, self.Dt_DEM):
self.dem_solution.time = self.dem_solution.time + self.dem_solution._GetSolver().dt
self.dem_solution.step += 1
self.dem_solution.DEMFEMProcedures.UpdateTimeInModelParts(self.dem_solution.all_model_parts, self.dem_solution.time, self.dem_solution._GetSolver().dt, self.dem_solution.step)
self.dem_solution.InitializeSolutionStep()
self.dem_solution._GetSolver().Predict()
DemFem.InterpolateStructuralSolutionForDEM().InterpolateStructuralSolution(self.structural_mp, self.Dt_structural, self.structural_solution.time, self.dem_solution._GetSolver().dt, self.dem_solution.time)
self.dem_solution.SolverSolve()
self.dem_solution.FinalizeSolutionStep()
DemFem.ComputeDEMFaceLoadUtility().CalculateDEMFaceLoads(self.skin_mp, self.dem_solution._GetSolver().dt, self.Dt_structural)
#### PRINTING GRAPHS ####
os.chdir(self.dem_solution.graphs_path)
self.dem_solution.post_utils.ComputeMeanVelocitiesInTrap("Average_Velocity.txt", self.dem_solution.time, self.dem_solution.graphs_path)
self.dem_solution.materialTest.MeasureForcesAndPressure()
self.dem_solution.materialTest.PrintGraph(self.dem_solution.time)
self.dem_solution.DEMFEMProcedures.PrintGraph(self.dem_solution.time)
self.dem_solution.DEMFEMProcedures.PrintBallsGraph(self.dem_solution.time)
self.dem_solution.DEMEnergyCalculator.CalculateEnergyAndPlot(self.dem_solution.time)
self.dem_solution.BeforePrintingOperations(self.dem_solution.time)
#### GiD IO ##########################################
if self.dem_solution.IsTimeToPrintPostProcess():
self.dem_solution._GetSolver().PrepareElementsForPrinting()
if self.dem_solution.DEM_parameters["ContactMeshOption"].GetBool():
self.dem_solution._GetSolver().PrepareContactElementsForPrinting()
self.dem_solution.PrintResultsForGid(self.dem_solution.time)
self.SPPostProcessResults(self.dem_solution.time)
self.dem_solution.demio.PrintMultifileLists(self.dem_solution.time, self.dem_solution.post_path)
self.dem_solution.time_old_print = self.dem_solution.time
if self.test_number:
self.stress_failure_check_utility.ExecuteFinalizeSolutionStep()
DemFem.InterpolateStructuralSolutionForDEM().RestoreStructuralSolution(self.structural_mp)
# if self.test_number:
# self.control_module_fem_dem_utility.ExecuteFinalizeSolutionStep()
self.multiaxial_control_module.ExecuteFinalizeSolutionStep()
self.structural_solution.FinalizeSolutionStep()
self.structural_solution.OutputSolutionStep()
# Write SP data
if self.IsPostProcessWriteStep():
self.sp_post_process_tool.WriteData()
def IsPostProcessWriteStep(self):
self.post_process_step_count += 1
if self.post_process_step_count == self.post_process_write_count:
self.post_process_write_count += self.post_process_frequency
return True
else:
return False
def SPPostProcessResults(self,time):
DemFem.DemStructuresCouplingUtilities().MarkBrokenSpheres(self.ring_submodelpart)
center = Kratos.Array3()
center[0] = self.sp_parameters["problem_data"]["center"][0].GetDouble()
center[1] = self.sp_parameters["problem_data"]["center"][1].GetDouble()
center[2] = self.sp_parameters["problem_data"]["center"][2].GetDouble()
axis = Kratos.Array3()
axis[0] = self.sp_parameters["problem_data"]["axis"][0].GetDouble()
axis[1] = self.sp_parameters["problem_data"]["axis"][1].GetDouble()
axis[2] = self.sp_parameters["problem_data"]["axis"][2].GetDouble()
radius = 0
if self.test_number == 1:
radius = 0.0036195; #95% of the real hole. CTW16 specimen
elif self.test_number == 2:
radius = 0.012065; #95% of the real hole. CTW10 specimen
elif self.test_number == 3:
radius = 0.036195; #95% of the real hole. Blind Test
self.dem_solution.creator_destructor.MarkParticlesForErasingGivenCylinder(self.ring_submodelpart, center, axis, radius)
if self.test_number == 1 or self.test_number == 2:
if self.structural_solution._GetSolver().main_model_part.ProcessInfo[Kratos.DOMAIN_SIZE] == 2:
self.outer_walls_model_part = self.model["Structure.LinePressure2D_Outer_line"]
else:
self.outer_walls_model_part = self.model["Structure.SurfacePressure3D_lateral_pressure"]
DemFem.DemStructuresCouplingUtilities().ComputeSandProductionWithDepthFirstSearchNonRecursiveImplementation(self.ring_submodelpart, self.outer_walls_model_part, time)
DemFem.DemStructuresCouplingUtilities().ComputeSandProduction(self.ring_submodelpart, self.outer_walls_model_part, time)
elif self.test_number == 3:
if self.structural_solution._GetSolver().main_model_part.ProcessInfo[Kratos.DOMAIN_SIZE] == 2:
self.outer_walls_model_part_1 = self.model["Structure.LinePressure2D_Left_line"]
# self.outer_walls_model_part_2 = self.model["Structure.LinePressure2D_Bot_line"]
else:
self.outer_walls_model_part_1 = self.model["Structure.SurfacePressure3D_sigmaXpos"]
# self.outer_walls_model_part_2 = self.model["Structure.SurfacePressure3D_sigmaYpos"]
# NOTE: The stress printed in this case will also be the SigmaZ, but probably SigmaX is more appropriate
DemFem.DemStructuresCouplingUtilities().ComputeSandProductionWithDepthFirstSearchNonRecursiveImplementation(self.ring_submodelpart, self.outer_walls_model_part_1, time)
DemFem.DemStructuresCouplingUtilities().ComputeSandProduction(self.ring_submodelpart, self.outer_walls_model_part_1, time)