( Solid.
  Two-dimensional.
  Velocity gradient causes stress rate )

echo -no
number_of_space_dimensions 2
derivatives
materi_velocity
materi_strain_total
materi_stress
end_initia

options_mesh -fixed_in_space -fixed_in_space

node 1  0 0
node 2  1 0
node 3  0 1
element 1  -tria3 1 2 3

group_type 0  -materi
group_materi_density 0  1.0
group_materi_elasti_young 0  1.0
group_materi_elasti_poisson 0  0.0
group_materi_memory 0  -updated_without_rotation

bounda_unknown 0  -ra 1 2 3 -ra -velx
bounda_time    0  0. 0. 100. 0.
bounda_unknown 1  -ra 1 2 -ra -vely
bounda_time    1  0. 0. 100. 0.
bounda_unknown 2  3 -vely
bounda_time    2  0. 0. 1. 1. 100. 1.

print_filter 0 -node_dof -all -vely -tsigyy

control_timestep 0  1. 3.
(control_print    0  -time_current -node_dof)

target_item    0  -node_dof 1 -tsigyy
target_value   0  1. 1.e-8
end_data
