anchor.diff:  *VGET, ReactForce(1,2), NODE, 1, U, Y
   *CFOPEN, ReactFileUp, csv
   *VWRITE, ReactForce(1,1), ',', ReactForce(1,2)
  +*CFCLOS
   
   /eof
  
positive.code: *VGET, ReactForce(1,2), NODE, 1, U, Y
  *CFOPEN, ReactFileLow, csv
  *VWRITE, ReactForce(1,1), ',', ReactForce(1,2)
  
  LSEL,S,,,6                                ! Crack
  NSLL,S,1                                  !Select nodes associated to this line
  
negative.code: *VGET, CrackDisps(1,2), NODE, 1, U, Y
  *CFOPEN, CrackDispsFile, csv
  *VWRITE, CrackDisps(1,1), ',', CrackDisps(1,2)
  *CFCLOS
  
  LSEL,S,,,7                                ! Crack
  NSLL,S,1                                  !Select nodes associated to this line
  