No._material_props:    7
    E:     10000.0
    nu:    0.3
    Y:     15.0
    e0:    0.5
    n:     10.
    edot0: 0.1
    m:     10.
No._coords_per_node:   2
No._DOF_per_node:      2
No._nodes:             4
Nodal_coords:
    0.0   0.0
    1.0   0.0
    1.0   1.0
    0.0   1.0
No._elements:                       1
Max_no._nodes_on_any_one_element:   4
element_identifier; no._nodes_on_element; connectivity:
    1  4  1 2 3 4
No._nodes_with_prescribed_DOFs:  4
Node_#, DOF#, Value:
   1 1 0.0
   1 2 0.0
   2 2 0.0
   4 1 0.0
No._elements_with_prescribed_loads: 1
Element_#, Face_#, Traction_components:
  1 2 20.0 0.0