*HEADING
TEST OF AMPLITUDES IN RESTARTS                                     XAMP2
ONLY THE VALUES OF THE PRESCRIBED BOUNDARY CONDITIONS AND LOADS 
ARE TO BE CHECKED FROM THIS ANALYSIS TO VERIFY THE AMPLITUDE SPECIFICATIONS.
THE ANALYSIS IS RESTARTED WITHIN STEP 1 USING AN ENDSTEP PARAMETER. ALL 
DEFINITIONS OF LOADS AND BOUNDARY CONDITIONS ARE SET TO ZERO IN THE 
SUBSEQUENT STEP. THIS TESTS THE ABILITY TO READ THE AMPLITUDE CURVES AT 
ANY TIME IN THE STEP AND RAMP THE VALUES TO THE NEXT VALUE.
*RESTART,READ,STEP=1,INTERVAL=4,ENDSTEP
*NSET,NSET=QA_TEST
BCSET,
*STEP 
REMOVE (LINEARLY) LOADS AND BOUNDARY CONDITIONS
*DYNAMIC,EXPLICIT                                                       
,0.08
*CLOAD,OP=NEW
*BOUNDARY,OP=NEW            
BCSET,1,3
*FILE OUTPUT,NUM=5
*NODE FILE,NSET=BCSET
U,
*OUTPUT,FIELD,VAR=PRESELECT
*NODE OUTPUT,NSET=QA_TEST
U,
*END STEP