*HEADING
EC26AFAR: IMPEDANCE PROPERTY  [AC2D6]
*NODE, Nset=ODB_NSET
1, 
41,,10.
1001,1.
1041,1.,10.
300,0.5,0.5
309,0.5,9.5
*NGEN,NSET=NALL1
1,41
*NGEN,NSET=NALL2
1001,1041
*NGEN,NSET=NALL3
300,309
*NFILL,NSET=NALL
NALL1,NALL2,2,500
*Element, type=AC2D6,elset=eall
  200,    1, 1001, 1005,  501, 1003,  300,
  201, 1005,    5,    1,  505,    3,  300,
  202,    5, 1005, 1009,  505, 1007,  301,
  203, 1009,    9,    5,  509,    7,  301,
  204,    9, 1009, 1013,  509, 1011,  302,
  205, 1013,   13,    9,  513,   11,  302,
  206,   13, 1013, 1017,  513, 1015,  303,
  207, 1017,   17,   13,  517,   15,  303,
  208,   17, 1017, 1021,  517, 1019,  304,
  209, 1021,   21,   17,  521,   19,  304,
  210,   21, 1021, 1025,  521, 1023,  305,
  211, 1025,   25,   21,  525,   23,  305,
  212,   25, 1025, 1029,  525, 1027,  306,
  213, 1029,   29,   25,  529,   27,  306,
  214,   29, 1029, 1033,  529, 1031,  307,
  215, 1033,   33,   29,  533,   31,  307,
  216,   33, 1033, 1037,  533, 1035,  308,
  217, 1037,   37,   33,  537,   35,  308,
  218,   37, 1037, 1041,  537, 1039,  309,
  219, 1041,   41,   37,  541,   39,  309,
*ELSET,ELSET=LINER3
219, 
*MATERIAL,NAME=AIR
*DENSITY
1.293, 
*ACOUSTIC MEDIUM,BULK MODULUS
1.42176E5, 
*SOLID SECTION,MATERIAL=AIR,ELSET=EALL
*IMPEDANCE PROPERTY,NAME=IMPED
0.0,2.3323171E-3
*NSET,NSET=QA_TEST,GEN
1,41,4
1001,1041,4
*NSET,NSET=DRIV
1,501,1001
**
*STEP
*STEADY STATE DYNAMIC,DIRECT
1., 
5., 
10., 
17., 
25., 
50., 
75., 
100., 
*IMPEDANCE,prop=imped
LINER3,I1
*BOUNDARY
DRIV,8,,1.
*NODE PRINT,NSET=QA_TEST
POR,
*OUTPUT,FIELD, OP=NEW
*NODE OUTPUT,NSET=QA_TEST
POR,
*OUTPUT,HISTORY,OP=ADD
*NODE OUTPUT,NSET=QA_TEST
POR,
*END STEP