*HEADING
 Transfer from Standard to Explicit:  Test for B31 element
 - Explicit analysis
 - Unloading of the tension 
*IMPORT,UPDATE=YES,STATE=NO
 RECT, BOX, CIRC, HEX, I, L, PIPE, TRAP
*IMPORT NSET
 ALL, LEFT, RIGHT 
*BOUNDARY
 LEFT, 1,6
 RIGHT, 2,6
*STEP,NLGEOM,INC=20
*STATIC
0.1,1.0
*OUTPUT, FIELD
*NODE OUTPUT
 U,
 COORD,
*ELEMENT OUTPUT
E,
S,
*END STEP