*HEADING
*NODE
*ELEMENT, TYPE=C3D20R, ELSET=CUBE
*DISTRIBUTION TABLE, NAME=ORIENTATIONTABLE
 COORD3D, COORD3D
*DISTRIBUTION, NAME=DISTORI, TABLE=ORIENTATIONTABLE, LOCATION=ELEMENT
*ORIENTATION, NAME=ORI
 DISTORI
*SOLID SECTION, ELSET=CUBE, COMPOSITE, ORIENTATION=ORI
 1.1, 3, MATERIAL-1, 10.
 1.2, 3, MATERIAL-2, 20.
 1.3, 3, MATERIAL-3, 30.
*NSET, NSET=FIX
*NSET, NSET=LOAD
**
** MATERIALS
**
*MATERIAL, NAME=MATERIAL-1
*ELASTIC, TYPE=ENGINEERING CONSTANTS
 3.1E+06,  4.1E+06,  5.1E+06,    0.11,    0.21,    0.31, 310000.,410000.
 510000.,
*DENSITY
  0.751E-03,
*MATERIAL, NAME=MATERIAL-2
*ELASTIC, TYPE=ENGINEERING CONSTANTS
 3.2E+06,  4.2E+06,  5.2E+06,    0.12,    0.22,    0.32, 320000.,420000.
 520000.,
*DENSITY
  0.752E-03,
*MATERIAL, NAME=MATERIAL-3
*ELASTIC, TYPE=ENGINEERING CONSTANTS
 3.3E+06,  4.3E+06,  5.3E+06,    0.13,    0.23,    0.33, 330000.,430000.
 530000.,
*DENSITY
  0.753E-03,
*ELSET, ELSET=EALL, GENERATE
*PSD-DEFINITION, NAME=WHITE, TYPE=FORCE
*SPECTRUM, NAME=SPEC,TYPE=ACCELERATION
*BOUNDARY
 FIX, 1,3
**
** --------------------------------------------------
**
*STEP, NAME=STEP-1
 FREQUENCY ANALYSIS
*FREQUENCY,SIM,normalization=mass
 5,
*EL PRINT
 S,
*NODE PRINT
 U,
*OUTPUT, FIELD
*NODE OUTPUT
 U,
*ELEMENT OUTPUT
 S,
*END STEP
**
** --------------------------------------------------
**
*STEP, NAME=STEP-2
 SSD MODE-BASED
*STEADY STATE DYNAMICS, INTERVAL=EIGENFREQUENCY
 60,
*EL PRINT, FREQ=999
 S,
*NODE PRINT, FREQ=0
*OUTPUT, FIELD, OP=NEW
*ELEMENT OUTPUT
 S,
*CLOAD
 LOAD, 2, 1.E5
 LOAD, 3, 1.E5
*SELECT EIGENMODES, GENERATE
*MODAL DAMPING, RAYLEIGH
*END STEP
**
** --------------------------------------------------
**
*STEP, NAME=STEP-3
 MODAL DYNAMIC
*MODAL DYNAMIC
 0.1,1.
*CLOAD
 LOAD, 2, 1.E5
 LOAD, 3, 1.E5
*SELECT EIGENMODES, GENERATE
*MODAL DAMPING, RAYLEIGH
*END STEP
**
** --------------------------------------------------
**
*STEP, NAME=STEP-4
 SSD DIRECT
*STEADY STATE DYNAMICS, DIRECT, INTERVAL=EIGENFREQUENCY
 60.,
*CLOAD
 LOAD, 2, 100.
*END STEP
**
** --------------------------------------------------
**
*STEP, NAME=STEP-5
 SSD SUBSPACE
*STEADY STATE DYNAMICS, SUBSPACE PROJECTION, INTERVAL=EIGENFREQUENCY
 60.,
*CLOAD
 LOAD, 2, 100.
*END STEP
**
** --------------------------------------------------
**
*STEP, NAME=STEP-6
 RANDOM RESPONSE
*RANDOM RESPONSE
*SELECT EIGENMODES, GENERATE
*CLOAD, LOAD CASE=1
 LOAD, 2, 100.
*CLOAD, LOAD CASE=2
 LOAD, 2, 100.
*CORRELATION, PSD=WHITE, TYPE=UNCORRELATED, COMPLEX=NO
*END STEP
**
** --------------------------------------------------
**
*STEP, NAME=STEP-7
 RESPONSE SPECTRUM
*RESPONSE SPECTRUM, SUM=ABS, COMP=ALG
 SPEC,0.,1.,0.,1.
*SELECT EIGENMODES, GENERATE
*END STEP
**
** --------------------------------------------------
**
*STEP, NLGEOM=YES, NAME=STEP-8
 STATIC
*STATIC
 1.0, 1.0
*BOUNDARY
 LOAD, 1, 1, 0.025
 LOAD, 2, 2, 0.050
*EL PRINT, FREQ=999
 S,
*NODE PRINT, FREQ=999
 U,
*OUTPUT, FIELD, OP=NEW
*NODE OUTPUT
 U,
*ELEMENT OUTPUT
 S,
*END STEP
**
** --------------------------------------------------
**
*STEP, PERTURBATION, NAME=STEP-9
 STATIC
*STATIC
*EL PRINT, FREQ=999
 S,
*NODE PRINT, FREQ=0
*OUTPUT, FIELD, OP=NEW
*ELEMENT OUTPUT
 S,
*LOAD CASE, NAME=LOAD1
*DLOAD
 EALL, BX, 1.E3
*END LOAD CASE
*LOAD CASE, NAME=LOAD2
*DLOAD
 EALL, GRAV, 1.E6, 0.,1.,0.
*END LOAD CASE
*LOAD CASE, NAME=LOAD3
*DLOAD
 EALL, CENT, 100.,0.,0.,0.,1.,0.
*END LOAD CASE
*LOAD CASE, NAME=LOAD4
*DLOAD
 EALL, CENTRIF, 1.E6,0.,0.,0.,1.,0.
*END LOAD CASE
*END STEP