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OGS
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OGS
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<OpenGeoSysProject>
<mesh>beam3d.vtu</mesh>
<geometry>beam3d.gml</geometry>
<processes>
<process>
<name>ThermoMechanicalPhaseField</name>
<type>THERMO_MECHANICAL_PHASE_FIELD</type>
<integration_order>3</integration_order>
<constitutive_relation>
<type>LinearElasticIsotropic</type>
<youngs_modulus>E</youngs_modulus>
<poissons_ratio>nu</poissons_ratio>
</constitutive_relation>
<phasefield_parameters>
<residual_stiffness>k</residual_stiffness>
<crack_resistance>gc</crack_resistance>
<crack_length_scale>ls</crack_length_scale>
<kinetic_coefficient>M</kinetic_coefficient>
</phasefield_parameters>
<solid_density>rho_sr</solid_density>
<thermal_parameters>
<linear_thermal_expansion_coefficient>alpha</linear_thermal_expansion_coefficient>
<specific_heat_capacity>cs</specific_heat_capacity>
<thermal_conductivity>lambda</thermal_conductivity>
<residual_thermal_conductivity>lambda_res</residual_thermal_conductivity>
</thermal_parameters>
<reference_temperature>20</reference_temperature>
<process_variables>
<temperature>temperature</temperature>
<displacement>displacement</displacement>
<phasefield>phasefield</phasefield>
</process_variables>
<secondary_variables>
<secondary_variable internal_name="sigma" output_name="sigma" />
<secondary_variable internal_name="epsilon" output_name="epsilon" />
<secondary_variable internal_name="heat_flux" output_name="heat_flux" />
</secondary_variables>
<specific_body_force>0 0 0</specific_body_force>
</process>
</processes>
<time_loop>
<global_process_coupling>
<max_iter>100</max_iter>
<convergence_criteria>
<convergence_criterion>
<type>DeltaX</type>
<norm_type>INFINITY_N</norm_type>
<abstol>1.e-12</abstol>
<reltol>1.e-14</reltol>
</convergence_criterion>
<convergence_criterion>
<type>DeltaX</type>
<norm_type>INFINITY_N</norm_type>
<abstol>1.e-10</abstol>
<reltol>1.e-10</reltol>
</convergence_criterion>
<convergence_criterion>
<type>DeltaX</type>
<norm_type>INFINITY_N</norm_type>
<abstol>1.e-12</abstol>
<reltol>1.e-14</reltol>
</convergence_criterion>
</convergence_criteria>
</global_process_coupling>
<processes>
<process ref="ThermoMechanicalPhaseField">
<nonlinear_solver>basic_newton_T</nonlinear_solver>
<convergence_criterion>
<type>DeltaX</type>
<norm_type>NORM2</norm_type>
<reltol>1.e-4</reltol>
</convergence_criterion>
<time_discretization>
<type>BackwardEuler</type>
</time_discretization>
<time_stepping>
<type>FixedTimeStepping</type>
<t_initial>0</t_initial>
<t_end>10</t_end>
<timesteps>
<pair>
<repeat>1</repeat>
<delta_t>10</delta_t>
</pair>
</timesteps>
</time_stepping>
</process>
<process ref="ThermoMechanicalPhaseField">
<nonlinear_solver>basic_newton_u</nonlinear_solver>
<convergence_criterion>
<type>DeltaX</type>
<norm_type>NORM2</norm_type>
<abstol>1.e-4</abstol>
</convergence_criterion>
<time_discretization>
<type>BackwardEuler</type>
</time_discretization>
<time_stepping>
<type>FixedTimeStepping</type>
<t_initial>0</t_initial>
<t_end>10</t_end>
<timesteps>
<pair>
<repeat>1</repeat>
<delta_t>10</delta_t>
</pair>
</timesteps>
</time_stepping>
</process>
<process ref="ThermoMechanicalPhaseField">
<nonlinear_solver>basic_newton_d</nonlinear_solver>
<convergence_criterion>
<type>DeltaX</type>
<norm_type>NORM2</norm_type>
<reltol>1.e-6</reltol>
</convergence_criterion>
<time_discretization>
<type>BackwardEuler</type>
</time_discretization>
<time_stepping>
<type>FixedTimeStepping</type>
<t_initial>0</t_initial>
<t_end>10</t_end>
<timesteps>
<pair>
<repeat>1</repeat>
<delta_t>10</delta_t>
</pair>
</timesteps>
</time_stepping>
</process>
</processes>
<output>
<type>VTK</type>
<prefix>beam3d</prefix>
<suffix>ts{:timestep}_t_{:time}</suffix>
<timesteps>
<pair>
<repeat>1</repeat>
<each_steps>1</each_steps>
</pair>
<pair>
<repeat>1</repeat>
<each_steps>1</each_steps>
</pair>
<pair>
<repeat>1</repeat>
<each_steps>1</each_steps>
</pair>
</timesteps>
<variables>
<variable>temperature</variable>
<variable>heat_flux</variable>
<variable>displacement</variable>
<variable>sigma</variable>
<variable>epsilon</variable>
<variable>phasefield</variable>
</variables>
</output>
</time_loop>
<parameters>
<parameter>
<name>E</name>
<type>MeshElement</type>
<field_name>youngs_modulus</field_name>
</parameter>
<parameter>
<name>nu</name>
<type>Constant</type>
<value>0.3</value>
</parameter>
<parameter>
<name>k</name>
<type>Constant</type>
<value>1e-3</value>
</parameter>
<parameter>
<name>gc</name>
<type>Constant</type>
<value>2.7</value>
</parameter>
<parameter>
<name>ls</name>
<type>Constant</type>
<value>0.002</value>
</parameter>
<parameter>
<name>M</name>
<type>Constant</type>
<value>1e6</value>
</parameter>
<parameter>
<name>alpha</name>
<type>Constant</type>
<value>1e-3</value>
</parameter>
<parameter>
<name>cs</name>
<type>Constant</type>
<value>2000</value>
</parameter>
<parameter>
<name>lambda</name>
<type>Constant</type>
<value>1e-1</value>
</parameter>
<parameter>
<name>lambda_res</name>
<type>Constant</type>
<value>1e-1</value>
</parameter>
<parameter>
<name>temperature_ic</name>
<type>Constant</type>
<value>500</value>
</parameter>
<parameter>
<name>rho_sr</name>
<type>Constant</type>
<value>1.2e-6</value>
</parameter>
<parameter>
<name>displacement0</name>
<type>Constant</type>
<values>0 0 0</values>
</parameter>
<parameter>
<name>phasefield_ic</name>
<type>Constant</type>
<value>1</value>
</parameter>
<parameter>
<name>dirichlet0</name>
<type>Constant</type>
<value>0</value>
</parameter>
<parameter>
<name>Dirichlet_spatial</name>
<type>Constant</type>
<value>1</value>
</parameter>
<parameter>
<name>temperature_bc</name>
<type>CurveScaled</type>
<curve>Dirichlet_temporal</curve>
<parameter>Dirichlet_spatial</parameter>
</parameter>
</parameters>
<curves>
<curve>
<name>Dirichlet_temporal</name>
<coords>0 10</coords>
<values>20 0</values>
</curve>
</curves>
<process_variables>
<process_variable>
<name>temperature</name>
<components>1</components>
<order>1</order>
<initial_condition>temperature_ic</initial_condition>
<boundary_conditions>
<boundary_condition>
<geometrical_set>beam3d_geometry</geometrical_set>
<geometry>left</geometry>
<type>Dirichlet</type>
<parameter>temperature_bc</parameter>
</boundary_condition>
<boundary_condition>
<geometrical_set>beam3d_geometry</geometrical_set>
<geometry>right</geometry>
<type>Dirichlet</type>
<parameter>temperature_bc</parameter>
</boundary_condition>
</boundary_conditions>
</process_variable>
<process_variable>
<name>displacement</name>
<components>3</components>
<order>1</order>
<initial_condition>displacement0</initial_condition>
<boundary_conditions>
<boundary_condition>
<geometrical_set>beam3d_geometry</geometrical_set>
<geometry>bottom</geometry>
<type>Dirichlet</type>
<component>1</component>
<parameter>dirichlet0</parameter>
</boundary_condition>
<boundary_condition>
<geometrical_set>beam3d_geometry</geometrical_set>
<geometry>top</geometry>
<type>Dirichlet</type>
<component>1</component>
<parameter>dirichlet0</parameter>
</boundary_condition>
<boundary_condition>
<geometrical_set>beam3d_geometry</geometrical_set>
<geometry>back</geometry>
<type>Dirichlet</type>
<component>2</component>
<parameter>dirichlet0</parameter>
</boundary_condition>
<boundary_condition>
<geometrical_set>beam3d_geometry</geometrical_set>
<geometry>front</geometry>
<type>Dirichlet</type>
<component>2</component>
<parameter>dirichlet0</parameter>
</boundary_condition>
<boundary_condition>
<geometrical_set>beam3d_geometry</geometrical_set>
<geometry>left</geometry>
<type>Dirichlet</type>
<component>0</component>
<parameter>dirichlet0</parameter>
</boundary_condition>
<boundary_condition>
<geometrical_set>beam3d_geometry</geometrical_set>
<geometry>right</geometry>
<type>Dirichlet</type>
<component>0</component>
<parameter>dirichlet0</parameter>
</boundary_condition>
</boundary_conditions>
</process_variable>
<process_variable>
<name>phasefield</name>
<components>1</components>
<order>1</order>
<initial_condition>phasefield_ic</initial_condition>
<boundary_conditions>
<boundary_condition>
<geometrical_set>beam3d_geometry</geometrical_set>
<geometry>bottom</geometry>
<type>PhaseFieldIrreversibleDamageOracleBoundaryCondition</type>
<component>0</component>
</boundary_condition>
</boundary_conditions>
</process_variable>
</process_variables>
<nonlinear_solvers>
<nonlinear_solver>
<name>basic_newton_T</name>
<type>Newton</type>
<max_iter>500</max_iter>
<linear_solver>linear_solver_T</linear_solver>
</nonlinear_solver>
<nonlinear_solver>
<name>basic_newton_u</name>
<type>Newton</type>
<max_iter>500</max_iter>
<linear_solver>linear_solver_u</linear_solver>
</nonlinear_solver>
<nonlinear_solver>
<name>basic_newton_d</name>
<type>Newton</type>
<max_iter>500</max_iter>
<linear_solver>linear_solver_d</linear_solver>
</nonlinear_solver>
</nonlinear_solvers>
<linear_solvers>
<linear_solver>
<name>linear_solver_T</name>
<eigen>
<solver_type>SparseLU</solver_type>
</eigen>
</linear_solver>
<linear_solver>
<name>linear_solver_u</name>
<eigen>
<solver_type>SparseLU</solver_type>
</eigen>
</linear_solver>
<linear_solver>
<name>linear_solver_d</name>
<eigen>
<solver_type>SparseLU</solver_type>
</eigen>
</linear_solver>
</linear_solvers>
</OpenGeoSysProject>
1.12.0