*HEADING
Pre-tension Section Test []
Procedures Tested: Coupled Temperature-Displacement
Elements Tested: CPE8RT,CAX4T
**
*RESTART,WRITE
*NODE
       1,          0.,          0.
       2,         0.5,          0.
       3,          1.,          0.
       4,          0.,         0.5
       5,          1.,         0.5
       6,          0.,          1.
       7,         0.5,          1.
       8,          1.,          1.
       9,          0.,         1.5
      10,          1.,         1.5
      11,          0.,          2.
      12,         0.5,          2.
      13,          1.,          2.
      14,          2.,          0.
      15,          3.,          0.
      16,          2.,          1.
      17,          3.,          1.
      18,          2.,          2.
      19,          3.,          2.
** pre-tension section nodes
*NODE,NSET=NREF
    1001,          0.,          0.
    1002,          0.,          0.
**
*ELEMENT, TYPE=CPE8RT, ELSET=ECPE
       1,       1,       3,       8,       6,       2,       5,
       7,       4
       2,       6,       8,      13,      11,       7,      10,
      12,       9
*ELEMENT, TYPE=CAX4T, ELSET=ECAX
       3,      14,      15,      17,      16
       4,      16,      17,      19,      18
*SOLID SECTION,ELSET=ECPE,MATERIAL=MAT
1.0, 
*SOLID SECTION,ELSET=ECAX,MATERIAL=MAT
*MATERIAL,NAME=MAT
*ELASTIC
1.E5,0.3
*CONDUCTIVITY
1.0, 
**
** Node Sets for Boundary Conditions
**
*NSET, NSET=XSYMM
       1,       4,       6,       9,      11
*NSET, NSET=YSYMM
       1,       2,       3,      14,      15
*NSET, NSET=NPULL
      11,      12,      13,      18,      19
**
** Pre-tension Sections
**
*surface,NAME=SCPE
2,S1
*PRE-TENSION SECTION, SURFACE=SCPE, NODE=1001
*surface,NAME=SCAX
4,S1
*PRE-TENSION SECTION, SURFACE=SCAX, NODE=1002
**
** Analysis
**
*STEP,NLGEOM
pre-tension section by tightening
*COUPLED TEMPERATURE-DISPLACEMENT, STEADY STATE
1.0,1.0,
*BOUNDARY
XSYMM,1,,
YSYMM,2,,
NPULL,2,,
NREF,1,,0.1
*NODE FILE
U,RF
*EL FILE
S,E
*END STEP
*STEP,NLGEOM
further loading from initial tightened state
*COUPLED TEMPERATURE-DISPLACEMENT, STEADY STATE
1.0,1.0
*BOUNDARY,OP=NEW
XSYMM,1,,
YSYMM,2,,
NREF,1,,0.1
NPULL,2,,0.1
*ENDSTEP