<OpenGeoSysProject>
  <mesh>square_1x1_quad_1e0.vtu</mesh>
  <geometry>square_1x1.gml</geometry>
  <processes>
    <process>
      <name>SD</name>
      <type>SMALL_DEFORMATION</type>
      <integration_order>2</integration_order>
      <constitutive_relation>
        <type>MFront</type>
        <behaviour>MohrCoulombAbboSloanAniso</behaviour>
        <material_properties>
          <material_property name="YoungModulus1" parameter="YoungModulus1" />
          <material_property name="YoungModulus2" parameter="YoungModulus2" />
          <material_property name="YoungModulus3" parameter="YoungModulus3" />
          <material_property name="PoissonRatio12" parameter="PoissonRatio12" />
          <material_property name="PoissonRatio23" parameter="PoissonRatio23" />
          <material_property name="PoissonRatio13" parameter="PoissonRatio13" />
          <material_property name="ShearModulus12" parameter="ShearModulus12" />
          <material_property name="Cohesion" parameter="Cohesion" />
          <material_property name="FrictionAngle" parameter="FrictionAngle" />
          <material_property name="DilatancyAngle" parameter="DilatancyAngle" />
          <material_property name="TransitionAngle" parameter="TransitionAngle" />
          <material_property name="TensionCutOffParameter" parameter="TensionCutOffParameter" />
          <material_property name="NormalFactor" parameter="NormalFactor" />
          <material_property name="ShearFactor" parameter="ShearFactor" />
        </material_properties>
      </constitutive_relation>
      <specific_body_force>0 0</specific_body_force>
      <process_variables>
        <process_variable>displacement</process_variable>
      </process_variables>
      <secondary_variables>
        <secondary_variable internal_name="ElasticStrain" output_name="ElasticStrain" type="static" />
        <secondary_variable internal_name="sigma" output_name="sigma" type="static" />
        <secondary_variable internal_name="epsilon" output_name="epsilon" type="static" />
      </secondary_variables>
    </process>
  </processes>
  <time_loop>
    <processes>
      <process ref="SD">
        <nonlinear_solver>basic_newton</nonlinear_solver>
        <convergence_criterion>
          <type>DeltaX</type>
          <norm_type>NORM2</norm_type>
          <abstol>1e-12</abstol>
        </convergence_criterion>
        <time_discretization>
          <type>BackwardEuler</type>
        </time_discretization>
        <time_stepping>
          <type>IterationNumberBasedTimeStepping</type>
          <t_initial>0.0</t_initial>
          <t_end>2.0</t_end>
          <initial_dt>0.01</initial_dt>
          <minimum_dt>0.001</minimum_dt>
          <maximum_dt>0.01</maximum_dt>
          <number_iterations>1 4 10 20</number_iterations>
          <multiplier>1.2 1.0 0.9 0.8</multiplier>
        </time_stepping>
      </process>
    </processes>
    <output>
      <type>VTK</type>
      <prefix>triax_aniso_0</prefix>
      <timesteps>
        <pair>
          <repeat>1</repeat>
          <each_steps>100000</each_steps>
        </pair>
      </timesteps>
      <variables>
        <variable>displacement</variable>
        <variable>sigma</variable>
      </variables>
      <suffix>ts{:timestep}_t_{:time}</suffix>
    </output>
  </time_loop>
  <local_coordinate_system>
    <basis_vector_0>e0</basis_vector_0>
    <basis_vector_1>e1</basis_vector_1>
  </local_coordinate_system>
  <media>
    <medium>
      <phases>
        <phase>
          <type>Solid</type>
          <properties>
            <property>
              <name>density</name>
              <type>Constant</type>
              <value>1</value>
            </property>
          </properties>
        </phase>
      </phases>
    </medium>
  </media>
  <parameters>
    <parameter>
      <name>e0</name>
      <type>Constant</type>
      <values>1 0</values>
    </parameter>
    <parameter>
      <name>e1</name>
      <type>Constant</type>
      <values>0 1</values>
    </parameter>
    <parameter>
      <name>YoungModulus1</name>
      <type>Constant</type>
      <value>29.65e9</value>
    </parameter>
    <parameter>
      <name>YoungModulus2</name>
      <type>Constant</type>
      <value>15.2e9</value>
    </parameter>
    <parameter>
      <name>YoungModulus3</name>
      <type>Constant</type>
      <value>15.2e9</value>
    </parameter>
    <parameter>
      <name>PoissonRatio12</name>
      <type>Constant</type>
      <value>.2</value>
    </parameter>
    <parameter>
      <name>PoissonRatio23</name>
      <type>Constant</type>
      <value>.22</value>
    </parameter>
    <parameter>
      <name>PoissonRatio13</name>
      <type>Constant</type>
      <value>.2</value>
    </parameter>
    <parameter>
      <name>ShearModulus12</name>
      <type>Constant</type>
      <value>5.86e9</value>
    </parameter>
    <parameter>
      <name>ShearModulus23</name>
      <type>Constant</type>
      <value>6.23e9</value>
    </parameter>
    <parameter>
      <name>ShearModulus13</name>
      <type>Constant</type>
      <value>12.35e9</value>
    </parameter>
    <parameter>
      <name>Cohesion</name>
      <type>Constant</type>
      <value>26.e6</value>
    </parameter>
    <parameter>
      <name>FrictionAngle</name>
      <type>Constant</type>
      <value>29</value>
    </parameter>
    <parameter>
      <name>DilatancyAngle</name>
      <type>Constant</type>
      <value>10</value>
    </parameter>
    <parameter>
      <name>TransitionAngle</name>
      <type>Constant</type>
      <value>29</value>
    </parameter>
    <parameter>
      <name>TensionCutOffParameter</name>
      <type>Constant</type>
      <value>1e3</value>
    </parameter>
    <parameter>
      <name>ShearFactor</name>
      <type>Constant</type>
      <value>1.29</value>
    </parameter>
    <parameter>
      <name>NormalFactor</name>
      <type>Constant</type>
      <value>0.92</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>axial_displacement_top</name>
      <type>CurveScaled</type>
      <curve>dis_loading_curve</curve>
      <parameter>loading_value_top</parameter>
    </parameter>
    <parameter>
      <name>loading_value_top</name>
      <type>Constant</type>
      <value>-1e-2</value>
    </parameter>
    <parameter>
      <name>neumann_force_value_left</name>
      <type>Constant</type>
      <values>1e1</values>
    </parameter>
    <parameter>
      <name>neumann_force_left</name>
      <type>CurveScaled</type>
      <curve>pre_loading_curve</curve>
      <parameter>neumann_force_value_left</parameter>
    </parameter>
    <parameter>
      <name>neumann_force_value_right</name>
      <type>Constant</type>
      <values>-1e1</values>
    </parameter>
    <parameter>
      <name>neumann_force_right</name>
      <type>CurveScaled</type>
      <curve>pre_loading_curve</curve>
      <parameter>neumann_force_value_right</parameter>
    </parameter>
  </parameters>
  <curves>
    <curve>
      <name>dis_loading_curve</name>
      <coords>0.0 1.0 2.0</coords>
      <values>0.0 0.0 1.0</values>
    </curve>
    <curve>
      <name>pre_loading_curve</name>
      <coords>0.0 1.0 2.0</coords>
      <values>0.0 1.0 1.0</values>
    </curve>
  </curves>
  <process_variables>
    <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>bottom</geometry>
          <type>Dirichlet</type>
          <component>1</component>
          <parameter>zero</parameter>
        </boundary_condition>
        <boundary_condition>
          <geometrical_set>square_1x1_geometry</geometrical_set>
          <geometry>origin</geometry>
          <type>Dirichlet</type>
          <component>0</component>
          <parameter>zero</parameter>
        </boundary_condition>
        <boundary_condition>
          <geometrical_set>square_1x1_geometry</geometrical_set>
          <geometry>top</geometry>
          <type>Dirichlet</type>
          <component>1</component>
          <parameter>axial_displacement_top</parameter>
        </boundary_condition>
        <boundary_condition>
          <geometrical_set>square_1x1_geometry</geometrical_set>
          <geometry>right</geometry>
          <type>Neumann</type>
          <component>0</component>
          <parameter>neumann_force_right</parameter>
        </boundary_condition>
        <boundary_condition>
          <geometrical_set>square_1x1_geometry</geometrical_set>
          <geometry>left</geometry>
          <type>Neumann</type>
          <component>0</component>
          <parameter>neumann_force_left</parameter>
        </boundary_condition>
      </boundary_conditions>
    </process_variable>
  </process_variables>
  <nonlinear_solvers>
    <nonlinear_solver>
      <name>basic_newton</name>
      <type>Newton</type>
      <max_iter>40</max_iter>
      <linear_solver>general_linear_solver</linear_solver>
    </nonlinear_solver>
  </nonlinear_solvers>
  <linear_solvers>
    <linear_solver>
      <name>general_linear_solver</name>
      <lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
      <eigen>
        <solver_type>SparseLU</solver_type>
        <precon_type>DIAGONAL</precon_type>
      </eigen>
      <petsc>
        <prefix>sd</prefix>
        <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
      </petsc>
    </linear_solver>
  </linear_solvers>
</OpenGeoSysProject>