(Exaple 22, see manual.
 Element test: undrained (constant volume) triaxial compression, strain control,
 elasto-plasticity: Modified Cam Clay,
 parameters of Weald clay after Carter, 1982.
 Test supplied by herle@linux.itam.cas.cz )

echo -no
number_of_space_dimensions 2
materi_velocity
materi_strain_total
materi_strain_plasti
materi_stress
materi_history_variables 2
end_initia

node 1  0 0
node 2  1 0
node 3  0 1
node 4  1 1

options_convection   -no
options_mesh         -fixed_in_space -fixed_in_space

element 1  -quad4 1 2 3 4

node_dof    -ra 1 2 3 4 -ra  0. 0.
                             0. 0. 0. 0. 0. 0.
                             0. 0. 0. 0. 0. 0.
                            -207. 0. 0. -207. 0. -207.
                             0.627  207.0  (e, p0)

start_define
  left_edge  geometry_line 0
end_define
start_define
  lower_edge geometry_line 1
end_define
start_define
  upper_edge geometry_line 2
end_define
start_define
  right_edge geometry_line 3
end_define

left_edge  0. 0. 0. 1.  1.e-5
lower_edge 0. 0. 1. 0.  1.e-5
upper_edge 0. 1. 1. 1.  1.e-5
right_edge 1. 0. 1. 1.  1.e-5

bounda_unknown 0  -left_edge  -velx
bounda_time    0  0. 0. 100. 0.
bounda_unknown 1  -lower_edge -vely
bounda_time    1  0. 0. 100. 0.
bounda_unknown 2  -upper_edge -vely
bounda_time    2  0. -1. 100. -1.
bounda_unknown 3  -right_edge  -velx
bounda_time    3  0. 0.5 100. 0.5

group_type                     0  -materi
group_materi_memory            0  -updated_without_rotation
group_materi_plasti_camclay    0  0.882  0.031  0.088
group_materi_elasti_camclay_g  0  3000.
group_integration_points       0  -minimal
group_axisymmetric             0 -yes

post_point 1  0.5 0.5

(initial state)
(
control_print_data_versus_data  19  -post_point_dof 1 -eptxx
                                    -post_point_dof 1 -eptyy
                                    -post_point_dof 1 -sigxx
                                    -post_point_dof 1 -sigyy
                                    -post_point_dof 1 -hisv0
                                    -post_point_dof 1 -hisv1
)

control_timestep                20   0.001 0.12
(
control_print                   20  -time_current
control_print_data_versus_data  20  -post_point_dof 1 -eptxx
                                    -post_point_dof 1 -eptyy
                                    -post_point_dof 1 -sigxx
                                    -post_point_dof 1 -sigyy
                                    -post_point_dof 1 -hisv0
                                    -post_point_dof 1 -hisv1
)

target_item    0  -post_point_dof 1 -hisv1
target_value   0  264.5 10.
end_data
