iglu_quarter_plane_strain_quad.prj 13.3 KB
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<?xml version="1.0" encoding="ISO-8859-1"?>
<OpenGeoSysProject>
    <mesh>tm_q_quad.vtu</mesh>
    <geometry>quarter_group.gml</geometry>
    <search_length_algorithm>
        <type>fixed</type>
        <value>1e-6</value>
    </search_length_algorithm>
    <processes>
        <process>
            <name>ThermoMechanics</name>
            <type>THERMO_MECHANICS</type>
            <coupling_scheme>staggered</coupling_scheme>
            <integration_order>3</integration_order>
            <constitutive_relation>
                <type>LinearElasticIsotropic</type>
                <youngs_modulus>E</youngs_modulus>
                <poissons_ratio>nu</poissons_ratio>
            </constitutive_relation>
            <process_variables>
                <displacement>displacement</displacement>
                <temperature>temperature</temperature>
            </process_variables>
            <secondary_variables>
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                <secondary_variable internal_name="sigma" output_name="sigma"/>
                <secondary_variable internal_name="epsilon" output_name="epsilon"/>
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            </secondary_variables>
            <specific_body_force>0 0</specific_body_force>
        </process>
    </processes>
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    <media>
        <medium id="0">
            <phases>
                <phase>
                    <type>Solid</type>
                    <properties>
                        <property>
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                            <!-- rho_s= rho_0 exp(-alpha_T (T-T0))-->
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                            <name>density</name>
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                            <type>Exponential</type>
                            <!-- Reference density rho_0 -->
                            <reference_value>1.583e-6</reference_value>
                            <exponent>
                                <variable_name>temperature</variable_name>
                                <!-- Reference temeperature T0 -->
                                <reference_condition>283.15</reference_condition>
                                <!-- Volumetric thermal expansivity with sign-->
                                <factor>-3.207e-05</factor>
                            </exponent>
                            <offset>0.0</offset>
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                        </property>
                        <property>
                            <name>thermal_expansivity</name>
                            <type>Constant</type>
                            <value>1.069e-5</value>
                        </property>
                        <property>
                            <name>thermal_conductivity</name>
                            <type>Constant</type>
                            <value>0.96e-3</value>
                        </property>
                        <property>
                            <name>specific_heat_capacity</name>
                            <type>Constant</type>
                            <value>2083.4</value>
                        </property>
                    </properties>
                </phase>
            </phases>
        </medium>
        <medium id="1">
            <phases>
                <phase>
                    <type>Solid</type>
                    <properties>
                        <property>
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                            <!-- rho_s= rho_0 exp(-alpha_T (T-T0))-->
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                            <name>density</name>
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                            <type>Exponential</type>
                            <!-- Reference density rho_0 -->
                            <reference_value>1.825e-6</reference_value>
                            <exponent>
                                <variable_name>temperature</variable_name>
                                <!-- Reference temeperature T0 -->
                                <reference_condition>283.15</reference_condition>
                                <!-- Volumetric thermal expansivity with sign-->
                                <factor>-9e-5</factor>
                            </exponent>
                            <offset>0.0</offset>
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                        </property>
                        <property>
                            <name>thermal_expansivity</name>
                            <type>Constant</type>
                            <value>3e-5</value>
                        </property>
                        <property>
                            <name>thermal_conductivity</name>
                            <type>Constant</type>
                            <value>0.4e-3</value>
                        </property>
                        <property>
                            <name>specific_heat_capacity</name>
                            <type>Constant</type>
                            <value>2200</value>
                        </property>
                    </properties>
                </phase>
            </phases>
        </medium>
    </media>
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    <time_loop>
        <global_process_coupling>
            <max_iter> 6 </max_iter>
            <convergence_criteria>
                <!-- convergence criterion for the first process -->
                <convergence_criterion>
                    <type>DeltaX</type>
                    <norm_type>NORM2</norm_type>
                    <reltol>1.e-10</reltol>
                </convergence_criterion>
                <!-- convergence criterion for the second process -->
                <convergence_criterion>
                    <type>DeltaX</type>
                    <norm_type>NORM2</norm_type>
                    <reltol>1.e-10</reltol>
                </convergence_criterion>
            </convergence_criteria>
        </global_process_coupling>
        <processes>
            <process ref="ThermoMechanics">
                <nonlinear_solver>basic_newton_T</nonlinear_solver>
                <convergence_criterion>
                    <type>DeltaX</type>
                    <norm_type>NORM2</norm_type>
                    <abstol>1e-5</abstol>
                </convergence_criterion>
                <time_discretization>
                    <type>BackwardEuler</type>
                </time_discretization>
                <time_stepping>
                    <type>FixedTimeStepping</type>
                    <t_initial>0</t_initial>
                    <t_end>20000</t_end>
                    <timesteps>
                        <pair>
                            <repeat>20</repeat>
                            <delta_t>1000</delta_t>
                        </pair>
                    </timesteps>
                </time_stepping>
            </process>
            <process ref="ThermoMechanics">
                <nonlinear_solver>basic_newton_u</nonlinear_solver>
                <convergence_criterion>
                    <type>DeltaX</type>
                    <norm_type>NORM2</norm_type>
                    <abstol>1e-10</abstol>
                </convergence_criterion>
                <time_discretization>
                    <type>BackwardEuler</type>
                </time_discretization>
                <time_stepping>
                    <type>FixedTimeStepping</type>
                    <t_initial>0</t_initial>
                    <t_end>20000</t_end>
                    <timesteps>
                        <pair>
                            <repeat>20</repeat>
                            <delta_t>1000</delta_t>
                        </pair>
                    </timesteps>
                </time_stepping>
            </process>
        </processes>
        <output>
            <type>VTK</type>
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            <prefix>tm_q_quad</prefix>
            <suffix>_ts_{:timestep}_t_{:time}</suffix>
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            <timesteps>
                <pair>
                    <repeat>20</repeat>
                    <each_steps>1</each_steps>
                </pair>
            </timesteps>
            <variables>
                <variable>displacement</variable>
                <variable>temperature</variable>
                <variable>sigma</variable>
                <variable>epsilon</variable>
            </variables>
        </output>
    </time_loop>
    <parameters>
        <parameter>
            <name>E</name>
            <type>Group</type>
            <group_id_property>MaterialIDs</group_id_property>
            <index_values>
                <index>0</index>
                <value>1.911e3</value>
            </index_values>
            <index_values>
                <index>1</index>
                <value>68.9e3</value>
            </index_values>
        </parameter>
        <parameter>
            <name>nu</name>
            <type>Group</type>
            <group_id_property>MaterialIDs</group_id_property>
            <index_values>
                <index>0</index>
                <value>0.17</value>
            </index_values>
            <index_values>
                <index>1</index>
                <value>0.4</value>
            </index_values>
        </parameter>
        <parameter>
            <name>temperature_ic</name>
            <type>Constant</type>
            <value>283.15</value>
        </parameter>
        <parameter>
            <name>temperature_bc</name>
            <type>Constant</type>
            <value>363.15</value>
        </parameter>
        <parameter>
            <name>displacement0</name>
            <type>Constant</type>
            <values>0 0</values>
        </parameter>
        <parameter>
            <name>dirichlet0</name>
            <type>Constant</type>
            <value>0</value>
        </parameter>
    </parameters>
    <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>square_1x1_geometry</geometrical_set>
                    <geometry>in</geometry>
                    <type>Dirichlet</type>
                    <component>0</component>
                    <parameter>temperature_bc</parameter>
                </boundary_condition>
            </boundary_conditions>
        </process_variable>
        <process_variable>
            <name>displacement</name>
            <components>2</components>
            <order>1</order>
            <initial_condition>displacement0</initial_condition>
            <boundary_conditions>
                <boundary_condition>
                    <geometrical_set>square_1x1_geometry</geometrical_set>
                    <geometry>left</geometry>
                    <type>Dirichlet</type>
                    <component>0</component>
                    <parameter>dirichlet0</parameter>
                </boundary_condition>
                <boundary_condition>
                    <geometrical_set>square_1x1_geometry</geometrical_set>
                    <geometry>bottom</geometry>
                    <type>Dirichlet</type>
                    <component>1</component>
                    <parameter>dirichlet0</parameter>
                </boundary_condition>
            </boundary_conditions>
        </process_variable>
    </process_variables>
    <nonlinear_solvers>
        <nonlinear_solver>
            <name>basic_newton_T</name>
            <type>Newton</type>
            <max_iter>50</max_iter>
            <linear_solver>general_linear_solver_T</linear_solver>
        </nonlinear_solver>
        <nonlinear_solver>
            <name>basic_newton_u</name>
            <type>Newton</type>
            <max_iter>50</max_iter>
            <linear_solver>general_linear_solver_u</linear_solver>
        </nonlinear_solver>
    </nonlinear_solvers>
    <linear_solvers>
        <linear_solver>
            <name>general_linear_solver_T</name>
            <lis>-i bicgstab -p ilu -tol 1e-11 -maxiter 10000</lis>
            <eigen>
                <solver_type>CG</solver_type>
                <precon_type>DIAGONAL</precon_type>
                <max_iteration_step>10000</max_iteration_step>
                <error_tolerance>1e-11</error_tolerance>
            </eigen>
        </linear_solver>
        <linear_solver>
            <name>general_linear_solver_u</name>
            <lis>-i bicgstab -p ilu -tol 1e-11 -maxiter 10000</lis>
            <eigen>
                <solver_type>BiCGSTAB</solver_type>
                <precon_type>ILUT</precon_type>
                <max_iteration_step>10000</max_iteration_step>
                <error_tolerance>1e-11</error_tolerance>
            </eigen>
        </linear_solver>
    </linear_solvers>
    <test_definition>
        <vtkdiff>
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            <file>tm_q_quad_ts_20_t_20000.000000.vtu</file>
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            <field>displacement</field>
            <absolute_tolerance>1e-8</absolute_tolerance>
            <relative_tolerance>1.e-5</relative_tolerance>
        </vtkdiff>
        <vtkdiff>
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            <file>tm_q_quad_ts_20_t_20000.000000.vtu</file>
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            <field>sigma</field>
            <absolute_tolerance>1e-8</absolute_tolerance>
            <relative_tolerance>1.e-5</relative_tolerance>
        </vtkdiff>
        <vtkdiff>
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            <file>tm_q_quad_ts_20_t_20000.000000.vtu</file>
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            <field>epsilon</field>
            <absolute_tolerance>1e-8</absolute_tolerance>
            <relative_tolerance>1.e-5</relative_tolerance>
        </vtkdiff>
        <vtkdiff>
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            <file>tm_q_quad_ts_20_t_20000.000000.vtu</file>
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            <field>temperature</field>
            <absolute_tolerance>1e-8</absolute_tolerance>
            <relative_tolerance>1.e-5</relative_tolerance>
        </vtkdiff>
    </test_definition>
</OpenGeoSysProject>