( Mohr coulomb softening plasticity test.
  Two-dimensional.
  Shear only.
  phi = phiflow = 0, c = 0.1 for large enough kappa.
  For these material parameters the shear force cannot
  exceed 0.01 )

echo -no
number_of_space_dimensions 2
materi_velocity
materi_strain_total
materi_strain_plasti
materi_plasti_kappa
materi_stress
end_initia

node 1  0  0
node 2  1  0
node 3  0  1
node 4  1  1
element 1  -quad4 1 2 3 4

bounda_unknown 0  -ra 1 2 -ra -velx -vely
bounda_time    0  0. 0. 100. 0.
bounda_unknown 1  -ra 3 4 -ra -vely
bounda_time    1  0. 0. 100. 0.
bounda_unknown 2  -ra 3 4 -ra -velx
bounda_time    2  0. 1. 100. 1.

group_type 0  -materi
group_materi_elasti_young 0 1.
group_materi_memory 0  -updated_without_rotation
group_materi_plasti_mohrcoul_softening 0  0. 0.1 0. 0. 0.01 0. 0.1

print_filter 0  -node_dof -all -sigxy

control_timestep 0  1.e-2 1.
(
control_print    0  -time_current -node_dof
)

target_item 1  -node_dof 1 -sigxy
target_value 1  0.01 1.e-5
end_data
