SimpleAxisymmetricCreepWithAnalyticSolutionMFront.prj

<?xml version="1.0" encoding="ISO-8859-1"?>
<OpenGeoSysProject>
    <mesh axially_symmetric="true">SimpleAxisymmetricCreepWithAnalyticSolutionMFront.vtu</mesh>
    <geometry>boundary.gml</geometry>
    <processes>
        <process>
            <name>ThermoMechanics</name>
            <type>THERMO_MECHANICS</type>
            <integration_order>2</integration_order>
            <constitutive_relation>
                <type>MFront</type>
                <behaviour>PowerLawLinearCreep</behaviour>
                <material_properties>
                    <material_property name="YoungModulus" parameter="E"/>
                    <material_property name="PoissonRatio" parameter="nu"/>
                    <material_property name="PowerLawFactor" parameter="A"/>
                    <material_property name="PowerLawEnergy" parameter="Q"/>
                    <material_property name="PowerLawExponent" parameter="n"/>
                    <material_property name="ReferenceStress" parameter="sigma_f"/>
                    <material_property name="LinearLawFactor" parameter="A2"/>
                    <material_property name="LinearLawEnergy" parameter="Q"/>
                    <material_property name="SaltGrainSize" parameter="Dgrain"/>
                </material_properties>
            </constitutive_relation>
            <process_variables>
                <displacement>displacement</displacement>
                <temperature>temperature</temperature>
            </process_variables>
            <secondary_variables>
                <secondary_variable internal_name="sigma" output_name="sigma"/>
                <secondary_variable internal_name="epsilon" output_name="epsilon"/>
            </secondary_variables>
            <specific_body_force>0 0</specific_body_force>
        </process>
    </processes>
    <media>
        <medium>
            <phases>
                <phase>
                    <type>Solid</type>
                    <properties>
                        <property>
                            <name>density</name>
                            <type>Constant</type>
                            <value>0.</value>
                        </property>
                        <property>
                            <name>specific_heat_capacity</name>
                            <type>Constant</type>
                            <value>100</value>
                        </property>
                        <property>
                            <name>thermal_conductivity</name>
                            <type>Constant</type>
                            <value>1</value>
                        </property>
                        <property>
                            <name>thermal_expansivity</name>
                            <type>Constant</type>
                            <value>4e-5</value>
                        </property>
                    </properties>
                </phase>
            </phases>
        </medium>
    </media>
    <time_loop>
        <processes>
            <process ref="ThermoMechanics">
                <nonlinear_solver>basic_newton</nonlinear_solver>
                <convergence_criterion>
                    <type>PerComponentDeltaX</type>
                    <norm_type>NORM2</norm_type>
                    <abstols>5e-12 1e-16 1e-16</abstols>
                </convergence_criterion>
                <time_discretization>
                    <type>BackwardEuler</type>
                </time_discretization>
                <time_stepping>
                    <type>FixedTimeStepping</type>
                    <t_initial>0</t_initial>
                    <t_end>100</t_end>
                    <timesteps>
                        <pair>
                            <repeat>100</repeat>
                            <delta_t>0.1</delta_t>
                        </pair>
                    </timesteps>
                </time_stepping>
            </process>
        </processes>
        <output>
            <type>VTK</type>
            <prefix>SimpleAxisymmetricCreepWithAnalyticalSolutionMFront</prefix>
            <timesteps>
                <pair>
                    <repeat>10</repeat>
                    <each_steps>100</each_steps>
                </pair>
            </timesteps>
            <variables>
                <variable>displacement</variable>
                <variable>temperature</variable>
                <variable>sigma</variable>
                <variable>epsilon</variable>
            </variables>
            <suffix>_ts_{:timestep}_t_{:time}</suffix>
        </output>
    </time_loop>
    <parameters>
        <parameter>
            <name>A</name>
            <type>Constant</type>
            <value>0.18</value>
        </parameter>
        <parameter>
            <name>n</name>
            <type>Constant</type>
            <value>5.0</value>
        </parameter>
        <parameter>
            <name>sigma_f</name>
            <type>Constant</type>
            <value>1</value>
        </parameter>
        <parameter>
            <name>Q</name>
            <type>Constant</type>
            <value>54000</value>
        </parameter>
        <parameter>
            <name>A2</name>
            <type>Constant</type>
            <value>0.0</value>
        </parameter>
        <parameter>
            <name>Dgrain</name>
            <type>Constant</type>
            <value>5e-2</value>
        </parameter>
        <parameter>
            <name>E</name>
            <type>Constant</type>
            <value>25000</value>
        </parameter>
        <parameter>
            <name>nu</name>
            <type>Constant</type>
            <value>0.27</value>
        </parameter>
        <parameter>
            <name>temperature_ic</name>
            <type>Constant</type>
            <value>373.15</value>
        </parameter>
        <parameter>
            <name>temperature_bc</name>
            <type>Constant</type>
            <value>373.15</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>
        <parameter>
            <name>m_pressure</name>
            <type>Constant</type>
            <value>5.0</value>
        </parameter>
    </parameters>
    <process_variables>
        <process_variable>
            <name>displacement</name>
            <components>2</components>
            <order>1</order>
            <initial_condition>displacement0</initial_condition>
            <boundary_conditions>
                <boundary_condition>
                    <geometrical_set>cpreepBGRA</geometrical_set>
                    <geometry>bottom</geometry>
                    <type>Neumann</type>
                    <component>1</component>
                    <parameter>m_pressure</parameter>
                </boundary_condition>
                <boundary_condition>
                    <geometrical_set>cpreepBGRA</geometrical_set>
                    <geometry>top</geometry>
                    <type>Dirichlet</type>
                    <component>1</component>
                    <parameter>dirichlet0</parameter>
                </boundary_condition>
            </boundary_conditions>
        </process_variable>
        <process_variable>
            <name>temperature</name>
            <components>1</components>
            <order>1</order>
            <initial_condition>temperature_ic</initial_condition>
            <boundary_conditions>
                <boundary_condition>
                    <geometrical_set>cpreepBGRA</geometrical_set>
                    <geometry>top</geometry>
                    <type>Dirichlet</type>
                    <parameter>temperature_bc</parameter>
                </boundary_condition>
                <boundary_condition>
                    <geometrical_set>cpreepBGRA</geometrical_set>
                    <geometry>bottom</geometry>
                    <type>Dirichlet</type>
                    <parameter>temperature_bc</parameter>
                </boundary_condition>
            </boundary_conditions>
        </process_variable>
    </process_variables>
    <nonlinear_solvers>
        <nonlinear_solver>
            <name>basic_newton</name>
            <type>Newton</type>
            <max_iter>50</max_iter>
            <linear_solver>general_linear_solver</linear_solver>
        </nonlinear_solver>
    </nonlinear_solvers>
    <linear_solvers>
        <linear_solver>
            <name>general_linear_solver</name>
            <lis>-i bicgstab -p jacobi -tol 1e-11 -maxiter 10000</lis>
            <eigen>
                <solver_type>BiCGSTAB</solver_type>
                <precon_type>DIAGONAL</precon_type>
                <max_iteration_step>10000</max_iteration_step>
                <error_tolerance>1e-17</error_tolerance>
            </eigen>
        </linear_solver>
    </linear_solvers>
</OpenGeoSysProject>