OGS
load_test_elastic.prj
<
OpenGeoSysProject
>
<
meshes
>
<
mesh
axially_symmetric
="true">model_bias.vtu</mesh>
<
mesh
axially_symmetric
="true">geometry_left.vtu</mesh>
<
mesh
axially_symmetric
="true">geometry_right.vtu</mesh>
<
mesh
axially_symmetric
="true">geometry_top.vtu</mesh>
<
mesh
axially_symmetric
="true">geometry_bottom.vtu</mesh>
</meshes>
<
processes
>
<
process
>
<
name
>SD</name>
<
type
>
SMALL_DEFORMATION
</type>
<
integration_order
>2</integration_order>
<constitutive_relation>
<type>
LinearElasticIsotropic
</type>
<
youngs_modulus
>E</youngs_modulus>
<
poissons_ratio
>nu</poissons_ratio>
</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
="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>
<
abstol
>1e-12</abstol>
</convergence_criterion>
<
time_discretization
>
<
type
>
BackwardEuler
</type>
</time_discretization>
<
time_stepping
>
<
type
>
FixedTimeStepping
</type>
<
t_initial
>0</t_initial>
<
t_end
>40</t_end>
<
timesteps
>
<
pair
>
<
repeat
>10</repeat>
<
delta_t
>1</delta_t>
</pair>
<
pair
>
<
repeat
>10</repeat>
<
delta_t
>1</delta_t>
</pair>
<
pair
>
<
repeat
>10</repeat>
<
delta_t
>1</delta_t>
</pair>
<
pair
>
<
repeat
>10</repeat>
<
delta_t
>1</delta_t>
</pair>
</timesteps>
</time_stepping>
</process>
</processes>
<
output
>
<
type
>
VTK
</type>
<
prefix
>load_test_elastic</prefix>
<
timesteps
>
<
pair
>
<
repeat
>40</repeat>
<
each_steps
>1</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
>
<
phases
>
<
phase
>
<
type
>
Solid
</type>
<
properties
>
<
property
>
<
name
>density</name>
<
type
>
Constant
</type>
<
value
>2300.0</value>
</property>
</properties>
</phase>
</phases>
</medium>
</media>
<
parameters
>
<
parameter
>
<
name
>E</name>
<
type
>
Constant
</type>
<
value
>6778</value>
</parameter>
<
parameter
>
<
name
>nu</name>
<
type
>
Constant
</type>
<
value
>.21</value>
</parameter>
<
parameter
>
<
name
>displacement0</name>
<
type
>
Constant
</type>
<
values
>0 0</values>
</parameter>
<
parameter
>
<
name
>Dirichlet_left</name>
<
type
>
Constant
</type>
<
value
>0.</value>
</parameter>
<
parameter
>
<
name
>Dirichlet_bottom</name>
<
type
>
Constant
</type>
<
value
>0.</value>
</parameter>
<
parameter
>
<
name
>Dirichlet_right</name>
<
type
>
Constant
</type>
<
value
>0.</value>
</parameter>
<
parameter
>
<
name
>Dirichlet_top</name>
<
type
>
Constant
</type>
<
value
>0.</value>
</parameter>
<
parameter
>
<
name
>internal_pressure_value</name>
<
type
>
Constant
</type>
<
value
>-1.0</value>
</parameter>
<
parameter
>
<
name
>internal_pressure</name>
<
type
>
CurveScaled
</type>
<
curve
>internal_pressure_curve</curve>
<
parameter
>internal_pressure_value</parameter>
</parameter>
</parameters>
<
curves
>
<
curve
>
<
name
>internal_pressure_curve</name>
<coords>0.0 10.0 20.0 30.0 40.0</coords>
<values>0.0 15.0 0.0 15.0 20.0</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
>
<
mesh
>geometry_bottom</mesh>
<
type
>
Dirichlet
</type>
<
component
>1</component>
<
parameter
>Dirichlet_bottom</parameter>
</boundary_condition>
<
boundary_condition
>
<
mesh
>geometry_top</mesh>
<
type
>
Dirichlet
</type>
<
component
>1</component>
<
parameter
>Dirichlet_top</parameter>
</boundary_condition>
<
boundary_condition
>
<
mesh
>geometry_right</mesh>
<
type
>
NormalTraction
</type>
<
parameter
>internal_pressure</parameter>
</boundary_condition>
</boundary_conditions>
</process_variable>
</process_variables>
<
nonlinear_solvers
>
<
nonlinear_solver
>
<
name
>basic_newton</name>
<
type
>
Newton
</type>
<
max_iter
>100</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
>CG</solver_type>
<
precon_type
>DIAGONAL</precon_type>
<
max_iteration_step
>10000</max_iteration_step>
<
error_tolerance
>1e-16</error_tolerance>
</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>
OGS CTests—Project Files
Mechanics
MohrCoulombAbboSloan
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