*HEADING
EC23AFAR: IMPEDANCE PROPERTY  [AC2D3]
*NODE, Nset=ODB_NSET
1, 
41,,10.
1001,1.
1041,1.,10.
*NGEN,NSET=NALL
1,41
1001,1041
*ELEMENT,TYPE=AC2D3,ELSET=EALL
  200,    1, 1001, 1003,
  201, 1003,    3,    1,
  202,    3, 1003, 1005,
  203, 1005,    5,    3,
  204,    5, 1005, 1007,
  205, 1007,    7,    5,
  206,    7, 1007, 1009,
  207, 1009,    9,    7,
  208,    9, 1009, 1011,
  209, 1011,   11,    9,
  210,   11, 1011, 1013,
  211, 1013,   13,   11,
  212,   13, 1013, 1015,
  213, 1015,   15,   13,
  214,   15, 1015, 1017,
  215, 1017,   17,   15,
  216,   17, 1017, 1019,
  217, 1019,   19,   17,
  218,   19, 1019, 1021,
  219, 1021,   21,   19,
  220,   21, 1021, 1023,
  221, 1023,   23,   21,
  222,   23, 1023, 1025,
  223, 1025,   25,   23,
  224,   25, 1025, 1027,
  225, 1027,   27,   25,
  226,   27, 1027, 1029,
  227, 1029,   29,   27,
  228,   29, 1029, 1031,
  229, 1031,   31,   29,
  230,   31, 1031, 1033,
  231, 1033,   33,   31,
  232,   33, 1033, 1035,
  233, 1035,   35,   33,
  234,   35, 1035, 1037,
  235, 1037,   37,   35,
  236,   37, 1037, 1039,
  237, 1039,   39,   37,
  238,   39, 1039, 1041,
  239, 1041,   41,   39,
*ELSET,ELSET=LINER3
239, 
*MATERIAL,NAME=AIR
*DENSITY
1.293, 
*ACOUSTIC MEDIUM,BULK MODULUS
1.42176E5, 
*SOLID SECTION,MATERIAL=AIR,ELSET=EALL
*IMPEDANCE PROPERTY,NAME=IMPED
0.0,2.3323E-3
*NSET,NSET=QA_TEST,GEN
1,41,4
1001,1041,4
*NSET,NSET=DRIV
1,1001
**
*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