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/NOPR
NSEL,ALL
*GET,N,NODE,,NUM,MAX                 ! CURRENT MAXIMUM NODE NUMBER
CMSEL,S,CRACKTIP                     ! SELECT THE TIP NODES
ESLN                                 ! ANY ELEMENTS ATTACHED
*GET,ELMAX,ELEM,,NUM,MAX             ! CURRENT MAXIMUM ELEMENT NUMBER
*DO,IEL,1,ELMAX                      ! LOOP ON MAX ELEMENT
   ELMI=IEL
   *IF,ELMI,LE,0,EXIT                ! NO MORE SELECTED
   *GET,ELTYPE,ELEM,ELMI,ATTR,TYPE   ! GET ELEMENT TYPE
   *IF,ELTYPE,NE,ARG1,CYCLE          ! CHECK FOR SELECTED ELEMENT
   N3 = NELEM(ELMI,3)                ! GET NODE 3 (K)
   *IF,NSEL(N3),LE,0,CYCLE           ! IT MUST BE SELECTED
   N7 = NELEM(ELMI,7)                ! GET NODE 7 (L)
   *IF,NSEL(N7),LE,0,CYCLE           ! IT MUST ALSO BE SELECTED
   N1 = NELEM(ELMI,1)                ! GET NODE 1 (I)
   N2 = NELEM(ELMI,2)                ! GET NODE 2 (J)
   N5 = NELEM(ELMI,5)                ! GET NODE 5 (M)
   N6 = NELEM(ELMI,6)                ! GET NODE 6 (N)

   X3 = 0.75*NX(N3)                  ! WEIGHTED POSITION OF N3
   Y3 = 0.75*NY(N3)
   Z3 = 0.75*NZ(N3)
   X  = 0.25*NX(N2) + X3             ! QUARTER POINT LOCATION ( NODE (R) )
   Y  = 0.25*NY(N2) + Y3
   Z  = 0.25*NZ(N2) + Z3
   N  = N + 1                        ! NEXT NODE
   N10 = N
   N,N10,X,Y,Z                       ! MIDSIDE NODE LOCATION
   X  = 0.25*NX(N1) + X3
   Y  = 0.25*NY(N1) + Y3
   Z  = 0.25*NZ(N1) + Z3
   N  = N + 1
   N12= N
   N,N12,X,Y,Z
   X7 = 0.75*NX(N7)
   Y7 = 0.75*NY(N7)
   Z7 = 0.75*NZ(N7)
   X  = 0.25*NX(N6) + X7
   Y  = 0.25*NY(N6) + Y7
   Z  = 0.25*NZ(N6) + Z7
   N  = N + 1
   N14 = N
   N,N14,X,Y,Z
   X  = 0.25*NX(N5) + X7
   Y  = 0.25*NY(N5) + Y7
   Z  = 0.25*NZ(N5) + Z7
   N  = N + 1
   N16 = N
   N,N16,X,Y,Z
   N4=N3
   N8=N7
   NSEL,ALL
   TYPE,3
   EN,ELMI,N1,N2,N3,N4,N5,N6,N7,N8   ! REDEFINE THE ELEMENT
   EMORE,0,N10,0,N12,0,N14,0,N16
   EMORE,
*ENDDO
CMSEL,U,CRACKTIP                     ! UNSELECT THE TIP NODES
NUMMRG,NODE                          ! MERGE MIDSIDE NODES
NSEL,ALL                             ! SELECT ALL ELEMENTS
ESEL,ALL                             ! SELECT ALL ELEMENTS
/GOPR
*END
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