*HEADING
 CONTINUUM ELEMENTS: MODEL CHANGE VERIFICATION, ELASTIC MATERIAL
 elements with pore pressure
*RESTART,WRITE
*PREPRINT,MODEL=YES,HISTORY=NO
**
** TEST 26.5: CPE4RP
**
*NODE,NSET=NALL
*NSET,NSET=LEFT
*NSET,NSET=MID
*NSET,NSET=RIGHT
*NSET,NSET=TIP
*NSET,NSET=REFER
*NSET,NSET=TEST
*ELEMENT,TYPE=CPE4RP,ELSET=TEST265
*ELSET,ELSET=REFER
*ELSET,ELSET=TEST
**
** TEST 27: CPE8P
**
*NODE,NSET=NALL
*NSET,NSET=LEFT
*NSET,NSET=MID
*NSET,NSET=RIGHT
*NSET,NSET=TIP
*NSET,NSET=REFER
*NSET,NSET=TEST
*ELEMENT,TYPE=CPE8P,ELSET=TEST27
*ELSET,ELSET=REFER
*ELSET,ELSET=TEST
**
** TEST 28: CPE8PH
**
*NODE,NSET=NALL
*NSET,NSET=LEFT
*NSET,NSET=MID
*NSET,NSET=RIGHT
*NSET,NSET=TIP
*NSET,NSET=REFER
*NSET,NSET=TEST
*ELEMENT,TYPE=CPE8PH,ELSET=TEST28
*ELSET,ELSET=REFER
*ELSET,ELSET=TEST
**
** TEST 29: CPE8RP
**
*NODE,NSET=NALL
*NSET,NSET=LEFT
*NSET,NSET=MID
*NSET,NSET=RIGHT
*NSET,NSET=TIP
*NSET,NSET=REFER
*NSET,NSET=TEST
*ELEMENT,TYPE=CPE8RP,ELSET=TEST29
*ELSET,ELSET=REFER
*ELSET,ELSET=TEST
**
**  REMAINDER OF INPUT DECK SAME FOR ALL TESTS
**
*ELSET,ELSET=EALL
TEST,REFER
*SOLID SECTION,MATERIAL=ELAS,ELSET=EALL
1.0,
*HOURGLASS STIFFNESS
*MATERIAL,NAME=ELAS
*ELASTIC
1000., .25
*PERMEABILITY
 1.E-5,
*EXPANSION
1.E-3,
*DENSITY
1.E-3,
*INITIAL CONDITIONS,TYPE=TEMPERATURE
NALL,70.
*INITIAL CONDITIONS,TYPE=RATIO
NALL,1.0
*INITIAL CONDITION,TYPE=PORE PRESSURE
REFER,10
*INITIAL CONDITION,TYPE=PORE PRESSURE
TEST,20
*AMPLITUDE,NAME=RAMP
0.,0.,  1.,1.
**
**
*STEP, UNSYMM=YES
 STEP #1: DISPLACE TEST SPECIMEN SO FINAL SHAPE IS
          IDENTICAL TO INITIAL SHAPE OF REFERENCE ELEMENT
*SOILS
*PRINT,MODEL CHANGE=YES
*BOUNDARY,OP=NEW
LEFT,1,2
TEST,8,8,10
*NODE PRINT,FREQ=999
RF,
*EL PRINT,FREQ=999
S,
E,
POR,
*NODE FILE,FREQ=999
RF,
*EL FILE,FREQ=999
E, S
*END STEP
**
**
*STEP
 STEP #2: REMOVE TEST ELEMENTS
*SOILS
*MODEL CHANGE,REMOVE,TYPE=ELEMENT
TEST,
*END STEP
**
**
*STEP
 STEP #3: ADD TEST ELEMENTS BACK IN STRAIN-FREE
*SOILS
*MODEL CHANGE,ADD=STRAINFREE,TYPE=ELEMENT
TEST,
*BOUNDARY,OP=NEW
LEFT,1,2
*END STEP
**
**
*STEP
 STEP #4: APPLY LOAD TO BOTH ELEMENTS
*SOILS
*DLOAD
TEST,P4,-25
REFER,P4,-25
*END STEP
**
**
*STEP
 STEP #5: REMOVE TEST ELEMENT
*SOILS
*MODEL CHANGE,REMOVE,TYPE=ELEMENT
TEST,
*END STEP
**
**
*STEP
 STEP #6: ADD TEST ELEMENTS BACK IN WITH-STRAIN
*SOILS
*MODEL CHANGE,ADD=WITHSTRAIN,TYPE=ELEMENT
TEST,
*END STEP
**
**
*STEP
 STEP #7: APPLY THERMAL LOAD
*SOILS
*BOUNDARY,OP=NEW,FIXED
TIP,1
LEFT,1,2
LEFT,8,8
*TEMPERATURE
NALL,100.
*EL PRINT,FREQ=999
S,
POR,
THE,TEMP
*EL FILE,FREQ=999
S,
THE,TEMP
*END STEP
**