*HEADING
 :  C3D8R MODEL CHANGE VERIFICATION; ELASTIC MATERIAL
*NODE
1,
11,5.
401,,2.
411,5.,2.
1001, ,   , -1.0
1011,5.,  , -1.0
1401,,2.  , -1.0
1411,5.,2., -1.0
*NGEN,NSET=BOT
1,11,1
1001,  1011
*NGEN,NSET=TOP
401,411,1
1401, 1411, 1
*NFILL,NSET=NALL
BOT,TOP,4,100
*NSET, NSET=XFIX, GEN
1, 401, 100
1001, 1401, 100
*NSET, NSET=YZFIX
1, 11
*NSET, NSET=YFIX
1001, 1011
*NSET, NSET=XMOVE, GEN
11, 411, 100
1011, 1411, 100
*NSET, NSET=YZMOVE, GEN
204, 208, 1
404, 408, 1
1204, 1208,1
1404, 1408,1
1004, 1008, 1
*ELEMENT,TYPE=C3D8R,ELSET=EALL
1,1,3,1003,1001, 201, 203, 1203, 1201,
*ELGEN,ELSET=EALL
1,5,2,1,2,200,5
*ELSET, ELSET=EREMOV
2,3,4,7,8,9
*SOLID SECTION,MATERIAL=RUBBER,ELSET=EALL
*MATERIAL,NAME=RUBBER
*ELASTIC
4064385.018,0.451566
*BOUNDARY
YZFIX, 2, 3
YFIX, 2, 2
XFIX, 1,1
*STEP,NLGEOM
 COMPRESS ELEMENTS
*STATIC
0.1,1.,0.1,0.1
*BOUNDARY
XMOVE, 1,1 ,-0.1
*NODE FILE, FREQ=99
U, 
RF, 
*EL FILE, FREQ=99
E, 
S, 
*END STEP
*STEP,NLGEOM
REMOVE MIDDLE ELEMENTS
*STATIC
1.,1.
*MODEL CHANGE,REMOVE,TYPE=ELEMENT
EREMOV,
*END STEP
*STEP,NLGEOM
*STATIC
1.,1.
*BOUNDARY
YZMOVE, 2,3, 0.0
*END STEP
*STEP,NLGEOM
 ADD ELEMENTS BACK IN
*STATIC
0.1,1.,0.1,0.1
*MODEL CHANGE,ADD,TYPE=ELEMENT
EREMOV,
*BOUNDARY,OP=NEW
YZFIX, 2,3
YFIX, 2, 2
XFIX, 1,1
XMOVE, 1,1 ,0.1
*END STEP