*HEADING
ELEMENT TESTED      : C3D8R
SECONDARY SURFACE TYPE  : NODE
MAIN SURFACE TYPE : NODE
*PREPRINT, ECHO=YES, MODEL=YES, HISTORY=YES
*NODE
      1,          15.,          15.,           0.
      2,          15.,          15.,          10.
      3,          30., -1.77636E-15,          10.
      4,          30., -1.77636E-15,           0.
      5,           5.,           5.,          10.
      6,          10.,           0.,          10.
      7,          10., -5.20283E-16,           0.
      8,           5.,           5.,           0.
      9, -2.96059E-16,          30.,           0.
     10,   1.4803E-16,          30.,          10.
     11,           0.,          10.,          10.
     12,           0.,          10.,           0.
     13, -2.08113E-15,          50.,           0.
     14, -2.08113E-15,          50.,          10.
     15,          25.,          25.,          10.
     16,          25.,          25.,           0.
     17,          50.,           0.,          10.
     18,          50.,           0.,           0.
*ELEMENT, TYPE=C3D8R, ELSET=EALL
1, 8, 5, 6, 7, 1, 2, 3, 4
2, 12, 11,  5,  8,  9, 10,  2,  1
3,  9, 10,  2,  1, 13, 14, 15, 16
4,  1,  2,  3,  4, 16, 15, 17, 18
*NSET, NSET=NBC
  5,  6,  7,  8, 11, 12
*NSET, NSET=NSECONDARY
  3,  4,  6,  7, 17, 18
*NSET, NSET=NMAIN, GENERATE
  9,  14,   1
*SURFACE, NAME=SSECONDARY, TYPE=NODE
NSECONDARY,
*SURFACE, NAME=SMAIN, TYPE=NODE
NMAIN,
*SOLID SECTION, ELSET=EALL,MATERIAL=MAT
*MATERIAL,NAME=MAT
*ELASTIC
10E8,0.3
*DENSITY
100, 
*TIE, CYCLICSYM, POSITION=0.5, NAME=TIE1
 SSECONDARY, SMAIN
*CYCLIC SYMMETRY MODEL,N=4
 0,0,0, 0,0,1
*STEP
*FREQUENCY,EIGENSOLVER=LANCZOS, SIM=NO
 12,
*OUTPUT, FIELD, FREQUENCY=0
*END STEP