<OpenGeoSysProject>
  <meshes>
    <mesh>arehs-salt-TM0_ts_10_t_3153600000000.000000_element_ref_T.vtu</mesh>
    <mesh>geometry_bottom.vtu</mesh>
    <mesh>geometry_left.vtu</mesh>
    <mesh>geometry_right.vtu</mesh>
  </meshes>
  <processes>
    <process>
      <name>SD</name>
      <type>SMALL_DEFORMATION</type>
      <integration_order>4</integration_order>
      <constitutive_relation id="0">
        <type>LinearElasticIsotropic</type>
        <youngs_modulus>E_Deckgebirge</youngs_modulus>
        <poissons_ratio>nu_Deckgebirge</poissons_ratio>
      </constitutive_relation>
      <constitutive_relation id="1">
        <type>LinearElasticIsotropic</type>
        <youngs_modulus>E_Nebengebirge</youngs_modulus>
        <poissons_ratio>nu_Nebengebirge</poissons_ratio>
      </constitutive_relation>
      <constitutive_relation id="2">
        <type>CreepBGRa</type>
        <youngs_modulus>E_Salzgestein</youngs_modulus>
        <poissons_ratio>nu_Salzgestein</poissons_ratio>
        <a>A</a>
        <n>n</n>
        <sigma0>sigma_f</sigma0>
        <q>Q</q>
        <nonlinear_solver>
          <maximum_iterations>4000</maximum_iterations>
          <residuum_tolerance>5.0e-6</residuum_tolerance>
          <increment_tolerance>5.0e-7</increment_tolerance>
        </nonlinear_solver>
      </constitutive_relation>
      <constitutive_relation id="3">
        <type>LinearElasticIsotropic</type>
        <youngs_modulus>E_Grundgebirge</youngs_modulus>
        <poissons_ratio>nu_Grundgebirge</poissons_ratio>
      </constitutive_relation>
      <specific_body_force>0 -9.81</specific_body_force>
      <process_variables>
        <process_variable>displacement</process_variable>
      </process_variables>
      <secondary_variables>
        <secondary_variable name="sigma" />
        <secondary_variable name="epsilon" />
      </secondary_variables>
      <reference_temperature>T_ref</reference_temperature>
    </process>
  </processes>
  <time_loop>
    <processes>
      <process ref="SD">
        <nonlinear_solver>basic_newton</nonlinear_solver>
        <convergence_criterion>
          <type>PerComponentDeltaX</type>
          <norm_type>NORM2</norm_type>
          <reltols>1e-10 1e-10</reltols>
          <abstols>1e-10 1e-10</abstols>
        </convergence_criterion>
        <time_discretization>
          <type>BackwardEuler</type>
        </time_discretization>
        <time_stepping>
          <type>FixedTimeStepping</type>
          <t_initial>0</t_initial>
          <t_end>3.1535999999999998e+10</t_end>
          <timesteps>
            <pair>
              <repeat>1</repeat>
              <delta_t>1.0</delta_t>
            </pair>
            <pair>
              <repeat>5</repeat>
              <delta_t>3.63072e+9</delta_t>
            </pair>
          </timesteps>
        </time_stepping>
      </process>
    </processes>
    <output>
      <type>VTK</type>
      <prefix>arehs-salt-M_gravity_only</prefix>
      <timesteps>
        <pair>
          <repeat>1</repeat>
          <each_steps>1</each_steps>
        </pair>
        <pair>
          <repeat>1</repeat>
          <each_steps>5</each_steps>
        </pair>
      </timesteps>
      <variables>
        <variable>displacement</variable>
        <variable>sigma</variable>
        <variable>epsilon</variable>
      </variables>
      <suffix>ts{:timestep}_t_{:time}</suffix>
    </output>
  </time_loop>
  <media>
    <medium id="0">
      <phases>
        <phase>
          <type>Solid</type>
          <properties>
            <property>
              <name>density</name>
              <type>Constant</type>
              <value>1925</value>
            </property>
          </properties>
        </phase>
      </phases>
    </medium>
    <medium id="1, 3">
      <phases>
        <phase>
          <type>Solid</type>
          <properties>
            <property>
              <name>density</name>
              <type>Constant</type>
              <value>2700</value>
            </property>
          </properties>
        </phase>
      </phases>
    </medium>
    <medium id="2">
      <phases>
        <phase>
          <type>Solid</type>
          <properties>
            <property>
              <name>density</name>
              <type>Constant</type>
              <value>2140</value>
            </property>
          </properties>
        </phase>
      </phases>
    </medium>
  </media>
  <parameters>
    <parameter>
      <name>T_ref</name>
      <type>MeshElement</type>
      <field_name>element_temperatures</field_name>
    </parameter>
    <parameter>
      <name>E_Deckgebirge</name>
      <type>Constant</type>
      <value>7.7e9</value>
    </parameter>
    <parameter>
      <name>E_Nebengebirge</name>
      <type>Constant</type>
      <value>15.6e9</value>
    </parameter>
    <parameter>
      <name>E_Salzgestein</name>
      <type>Constant</type>
      <value>25e9</value>
    </parameter>
    <parameter>
      <name>E_Grundgebirge</name>
      <type>Constant</type>
      <value>15.6e9</value>
    </parameter>
    <parameter>
      <name>nu_Deckgebirge</name>
      <type>Constant</type>
      <value>0.28</value>
    </parameter>
    <parameter>
      <name>nu_Nebengebirge</name>
      <type>Constant</type>
      <value>0.3</value>
    </parameter>
    <parameter>
      <name>nu_Salzgestein</name>
      <type>Constant</type>
      <value>0.25</value>
    </parameter>
    <parameter>
      <name>nu_Grundgebirge</name>
      <type>Constant</type>
      <value>0.3</value>
    </parameter>
    <parameter>
      <name>Cohesion_Deckgebirge</name>
      <type>Constant</type>
      <value>10e5</value>
    </parameter>
    <parameter>
      <name>FrictionAngle_Deckgebirge</name>
      <type>Constant</type>
      <value>35.0</value>
    </parameter>
    <parameter>
      <name>DilatancyAngle_Deckgebirge</name>
      <type>Constant</type>
      <value>0</value>
    </parameter>
    <parameter>
      <name>TransitionAngle_Deckgebirge</name>
      <type>Constant</type>
      <value>0</value>
    </parameter>
    <parameter>
      <name>TensionCutOffParameter_Deckgebirge</name>
      <type>Constant</type>
      <value>0</value>
    </parameter>
    <parameter>
      <name>Cohesion_Nebengebirge</name>
      <type>Constant</type>
      <value>10e6</value>
    </parameter>
    <parameter>
      <name>FrictionAngle_Nebengebirge</name>
      <type>Constant</type>
      <value>15.0</value>
    </parameter>
    <parameter>
      <name>DilatancyAngle_Nebengebirge</name>
      <type>Constant</type>
      <value>0</value>
    </parameter>
    <parameter>
      <name>TransitionAngle_Nebengebirge</name>
      <type>Constant</type>
      <value>0</value>
    </parameter>
    <parameter>
      <name>TensionCutOffParameter_Nebengebirge</name>
      <type>Constant</type>
      <value>0</value>
    </parameter>
    <parameter>
      <name>A</name>
      <type>Constant</type>
      <value>3.3333333333333335e-05</value>
    </parameter>
    <parameter>
      <name>n</name>
      <type>Constant</type>
      <value>5.0</value>
    </parameter>
    <parameter>
      <name>sigma_f</name>
      <type>Constant</type>
      <value>1e6</value>
    </parameter>
    <parameter>
      <name>Q</name>
      <type>Constant</type>
      <value>54000</value>
    </parameter>
    <parameter>
      <name>displacement0</name>
      <type>Constant</type>
      <values>0 0</values>
    </parameter>
    <parameter>
      <name>zero</name>
      <type>Constant</type>
      <value>0.</value>
    </parameter>
    <parameter>
      <name>ice_load</name>
      <type>Constant</type>
      <value>-9.006e+6</value>
    </parameter>
  </parameters>
  <process_variables>
    <process_variable>
      <name>displacement</name>
      <components>2</components>
      <order>2</order>
      <initial_condition>displacement0</initial_condition>
      <boundary_conditions>
        <boundary_condition>
          <mesh>geometry_left</mesh>
          <type>Dirichlet</type>
          <component>0</component>
          <parameter>zero</parameter>
        </boundary_condition>
        <boundary_condition>
          <mesh>geometry_right</mesh>
          <type>Dirichlet</type>
          <component>0</component>
          <parameter>zero</parameter>
        </boundary_condition>
        <boundary_condition>
          <mesh>geometry_bottom</mesh>
          <type>Dirichlet</type>
          <component>1</component>
          <parameter>zero</parameter>
        </boundary_condition>
      </boundary_conditions>
    </process_variable>
  </process_variables>
  <nonlinear_solvers>
    <nonlinear_solver>
      <name>basic_newton</name>
      <type>Newton</type>
      <max_iter>20</max_iter>
      <linear_solver>general_linear_solver</linear_solver>
    </nonlinear_solver>
  </nonlinear_solvers>
  <linear_solvers>
    <linear_solver>
      <name>general_linear_solver</name>
      <eigen>
        <solver_type>BiCGSTAB</solver_type>
        <precon_type>ILUT</precon_type>
        <max_iteration_step>4000</max_iteration_step>
        <error_tolerance>1e-14</error_tolerance>
      </eigen>
    </linear_solver>
  </linear_solvers>
</OpenGeoSysProject>