slope.prj

<OpenGeoSysProject>
  <meshes>
    <mesh>domain.vtu</mesh>
    <mesh>bottom.vtu</mesh>
    <mesh>left.vtu</mesh>
    <mesh>right.vtu</mesh>
    <mesh>bench.vtu</mesh>
    <mesh>slope.vtu</mesh>
    <mesh>top_load.vtu</mesh>
  </meshes>
  <processes>
    <process>
      <name>SD</name>
      <type>SMALL_DEFORMATION</type>
      <integration_order>2</integration_order>
      <constitutive_relation>
        <type>MFront</type>
        <behaviour>MohrCoulombAbboSloan</behaviour>
        <material_properties>
          <material_property name="YoungModulus" parameter="YoungModulus" />
          <material_property name="PoissonRatio" parameter="PoissonRatio" />
          <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_properties>
      </constitutive_relation>
      <specific_body_force>0 -9.81</specific_body_force>
      <reference_temperature>T_ref</reference_temperature>
      <process_variables>
        <process_variable>displacement</process_variable>
      </process_variables>
      <secondary_variables>
        <secondary_variable internal_name="ElasticStrain" output_name="ElasticStrain" />
        <secondary_variable internal_name="EquivalentPlasticStrain" output_name="EquivalentPlasticStrain" />
        <secondary_variable internal_name="sigma" output_name="sigma" />
        <secondary_variable internal_name="epsilon" output_name="epsilon" />
      </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>
          <reltol>1e-8</reltol>
        </convergence_criterion>
        <time_discretization>
          <type>BackwardEuler</type>
        </time_discretization>
        <time_stepping>
          <type>IterationNumberBasedTimeStepping</type>
          <t_initial>0.0</t_initial>
          <t_end>9</t_end>
          <initial_dt>0.1</initial_dt>
          <minimum_dt>1e-3</minimum_dt>
          <maximum_dt>0.5</maximum_dt>
          <number_iterations>1 8 13 20</number_iterations>
          <multiplier>1.2 1.0 0.9 0.5</multiplier>
        </time_stepping>
      </process>
    </processes>
    <output>
      <type>VTK</type>
      <prefix>slope</prefix>
      <timesteps>
        <pair>
          <repeat>10000</repeat>
          <each_steps>1</each_steps>
        </pair>
      </timesteps>
      <variables />
      <suffix>ts{:timestep}_t_{:time}</suffix>
      <fixed_output_times>3.0</fixed_output_times>
    </output>
  </time_loop>
  <media>
    <medium>
      <phases>
        <phase>
          <type>Solid</type>
          <properties>
            <property>
              <name>density</name>
              <type>Parameter</type>
              <parameter_name>rho_sr</parameter_name>
            </property>
          </properties>
        </phase>
      </phases>
    </medium>
  </media>
  <parameters>
    <parameter>
      <name>T_ref</name>
      <type>Constant</type>
      <values>293.15</values>
    </parameter>
    <parameter>
      <name>YoungModulus</name>
      <type>Constant</type>
      <value>26e5</value>
    </parameter>
    <parameter>
      <name>PoissonRatio</name>
      <type>Constant</type>
      <value>.3</value>
    </parameter>
    <parameter>
      <name>Cohesion</name>
      <type>Function</type>
      <expression>5000.9 * max(0.4, min(1.0, 1.0 - (1.0-0.4)*(t-3)/6))</expression>
    </parameter>
    <parameter>
      <name>FrictionAngle</name>
      <type>Function</type>
      <expression>atan((max(0.4, min(1.0, 1.0 - (1.0-0.4)*(t-3)/6))) * tan(20.9*pi/180.0)) * 180.0/pi</expression>
    </parameter>
    <parameter>
      <name>DilatancyAngle</name>
      <type>Function</type>
      <expression>atan((max(0.4, min(1.0, 1.0 - (1.0-0.4)*(t-3)/6))) * tan(10.9*pi/180.0)) * 180.0/pi</expression>
    </parameter>
    <parameter>
      <name>rho_sr</name>
      <type>Function</type>
      <expression>1600.9 * max(0.0, min(1.0, t/1))</expression>
    </parameter>
    <parameter>
      <name>top_load</name>
      <type>Function</type>
      <expression>-3000.9 * max(0.0, min(1.0, (t-1.0)/1.0))</expression>
    </parameter>
    <parameter>
      <name>TransitionAngle</name>
      <type>Constant</type>
      <value>27</value>
    </parameter>
    <parameter>
      <name>TensionCutOffParameter</name>
      <type>Constant</type>
      <value>301.</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>displacement</name>
      <components>2</components>
      <order>1</order>
      <initial_condition>displacement0</initial_condition>
      <boundary_conditions>
        <boundary_condition>
          <mesh>bottom</mesh>
          <type>Dirichlet</type>
          <component>0</component>
          <parameter>dirichlet0</parameter>
        </boundary_condition>
        <boundary_condition>
          <mesh>bottom</mesh>
          <type>Dirichlet</type>
          <component>1</component>
          <parameter>dirichlet0</parameter>
        </boundary_condition>
        <boundary_condition>
          <mesh>right</mesh>
          <type>Dirichlet</type>
          <component>0</component>
          <parameter>dirichlet0</parameter>
        </boundary_condition>
        <boundary_condition>
          <mesh>left</mesh>
          <type>Dirichlet</type>
          <component>0</component>
          <parameter>dirichlet0</parameter>
        </boundary_condition>
        <boundary_condition>
          <mesh>top_load</mesh>
          <type>Neumann</type>
          <component>1</component>
          <parameter>top_load</parameter>
        </boundary_condition>
      </boundary_conditions>
    </process_variable>
  </process_variables>
  <nonlinear_solvers>
    <nonlinear_solver>
      <name>basic_newton</name>
      <type>Newton</type>
      <max_iter>30</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>SparseLU</solver_type>
        <scaling>true</scaling>
      </eigen>
    </linear_solver>
  </linear_solvers>
</OpenGeoSysProject>