*HEADING *NODE 1, 0.5, 0.5, 0. 2, 0., 0.5, 0.5 3, 0.5, 0.5, 0.5 4, 0., -0.5, 0.5 5, 0.5, -0.5, 0. 6, 0.5, -0.5, 0.5 7, -0.5, -0.5, 1. 8, -0.5, -0.5, 0.5 9, -0.5, 0.5, 1. 10, -0.5, 0.5, 0.5 11, 0.5, 0.5, 1. 12, 0., 0.5, 1. 13, 0.5, -0.5, 1. 14, 0., -0.5, 1. 15, -0.5, 0.5, 0. 16, 0., 0.5, 0. 17, -0.5, -0.5, 0. 18, 0., -0.5, 0. *ELEMENT, TYPE=C3D6, ELSET=CUBE 1, 3, 2, 1, 6, 4, 5 2, 8, 7, 4, 10, 9, 2 3, 12, 2, 11, 14, 4, 13 4, 16, 2, 15, 18, 4, 17 5, 14, 4, 7, 12, 2, 9 6, 10, 15, 2, 8, 17, 4 7, 18, 4, 5, 16, 2, 1 8, 6, 4, 13, 3, 2, 11 *DISTRIBUTION TABLE, NAME=ANGLETABLE ANGLE *DISTRIBUTION TABLE, NAME=THICKNESSTABLE LENGTH *DISTRIBUTION, NAME=DISTANGLEPLY1, LOCATION=ELEMENT, TABLE=ANGLETABLE , 0. *DISTRIBUTION, NAME=DISTANGLEPLY4, LOCATION=ELEMENT, TABLE=ANGLETABLE , 90. *DISTRIBUTION, NAME=DISTTHICKPLY1, LOCATION=ELEMENT, TABLE=THICKNESSTABLE , 1.0 E1234, 1.1 *DISTRIBUTION, NAME=DISTTHICKPLY4, LOCATION=ELEMENT, TABLE=THICKNESSTABLE , 1.0 E1234, 4.4 *ORIENTATION, NAME=ORI1 1.,1.,1., -1.,1.,-1. 1, 0.0 *ORIENTATION, NAME=ORIPLY2 0.,1.,0., -1.,0.,0. 1, 0.0 *SOLID SECTION, ELSET=CUBE, COMPOSITE, ORIENTATION=ORI1 DISTTHICKPLY1, 3, MATERIAL-1, DISTANGLEPLY1 1., 3, MATERIAL-2, ORIPLY2 1., 3, MATERIAL-3, 0. DISTTHICKPLY4, 3, MATERIAL-4, DISTANGLEPLY4 *NSET, NSET=FIX 4, 5, 6, 7, 8, 11, 13, 14, 17, 18 *NSET, NSET=LOAD 1, 2, 3, 9, 10, 12, 15, 16 *ELSET,ELSET=E1234 1,2,3,4 *ELSET,ELSET=E5678 5,6,7,8 ** ** MATERIALS ** *MATERIAL, NAME=MATERIAL-1 *ELASTIC, TYPE=ENGINEERING CONSTANTS 3.1E+06, 4.1E+06, 5.1E+06, 0.11, 0.21, 0.31, 3.1E+05, 4.1E+05 5.1E+05 *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, 3.2E+05, 4.2E+05 5.2E+05 *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, 3.3E+05, 4.3E+05 5.3E+05 *DENSITY 0.753E-03 *MATERIAL, NAME=MATERIAL-4 *ELASTIC, TYPE=ENGINEERING CONSTANTS 3.4E+06, 4.4E+06, 5.4E+06, 0.14, 0.24, 0.34, 3.4E+05, 4.4E+05 5.4E+05 *DENSITY 0.754E-03 *ELSET, ELSET=EALL, GENERATE 1, 8, 1 *PSD-DEFINITION, NAME=WHITE, TYPE=FORCE 1.0,0.1,0.0 1.0,0.1,60.0 *SPECTRUM, NAME=SPEC,TYPE=ACCELERATION 0., 0., 0. 1.E5, 10., 0. 1.E5, 100., 0. *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 1, 5 *MODAL DAMPING, RAYLEIGH 1, 5, 0.5 *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 1, 5 *MODAL DAMPING, RAYLEIGH 1, 5, 0.5 *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 60., *SELECT EIGENMODES, GENERATE 1, 5 *CLOAD, LOAD CASE=1 LOAD, 2, 100. *CLOAD, LOAD CASE=2 LOAD, 2, 100. *CORRELATION, PSD=WHITE, TYPE=UNCORRELATED, COMPLEX=NO 1,1 2,1 *END STEP ** ** -------------------------------------------------- ** *STEP, NAME=STEP-7 RESPONSE SPECTRUM *RESPONSE SPECTRUM, SUM=ABS, COMP=ALG SPEC,0.,1.,0.,1. *SELECT EIGENMODES, GENERATE 1, 5 *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