C OTTOEC    SOURCE    CHAT      05/01/13    02:07:24     5004           
      SUBROUTINE OTTOEC(NCA,NN,SIGMA,W,WMAX,SMAX,BILIN,WRUPT,BTR,
     &    XLTR,XINVL,SBILI,FCRIT,FCRIT2,PENTE,PENTE2,LEBIL,ISING,
     &    PRECIE,PRECIZ,XCOMP,XLAMC,KERRE)
C=========================================================================
C
C  ENTREES :
C    SIGMA,W,WMAX,SMAX,BILIN,WRUPT,BTR,XLTR,XINVL,SBILI
C
C
C  SORTIES :
C    FCRIT
C
C==========================================================================
C
      IMPLICIT INTEGER(I-N)
      IMPLICIT REAL*8(A-H,O-Z)      
-INC CCOPTIO
C
      PARAMETER (XZER=0.D0,UNDEMI=.5D0,UN=1.D0,DEUX=2.D0,TROIS=3.D0)
      PARAMETER (NC=4)
C
      DIMENSION SIGMA(6),W(3),WMAX(3),BILIN(3),WREOUV(3),
     &          WRUPT(3),XLTR(3),XINVL(3),SBILI(3)
      DIMENSION FCRIT(*),FCRIT2(*),NN(*),SMAX(*),XCOMP(*)
      DIMENSION LEBIL(*),ISING(*)
      DIMENSION PENTE(*),PENTE2(*)
*
      DIMENSION DFF(6),DGG(6)

C
C     INITIALISATIONS
C
      KERRE=0
      DO IC=1,NC
        FCRIT(IC)=-1.D4*PRECIZ
        FCRIT2(IC)=-1.D4*PRECIZ
        LEBIL(IC)=0
      ENDDO
*
*
      DO IC=1,NCA
         JC=NN(IC)
*
         GO TO (1,1,1,4),JC
*
         KERRE=99
         RETURN
*
  1      CONTINUE
*-----------------
*
         IF (XINVL(JC).NE.XZER) THEN
*
           WREOUV(JC) = BTR*MIN(WMAX(JC),WRUPT(JC))
           PRECIW=PRECIE/XINVL(JC)

      IF(IIMPI.EQ.42) THEN
            PRINT *,'  '
            PRINT *,'OTTOEC - JC     =',JC
            PRINT *,'OTTOEC - W      =',W(JC)
            PRINT *,'OTTOEC - WMAX   =',WMAX(JC)
            PRINT *,'OTTOEC - WREOUV =',WREOUV(JC)
            PRINT *,'OTTOEC - WRUPT  =',WRUPT(JC)
            PRINT *,'OTTOEC - ISING  =',ISING(JC)
      ENDIF

*
*
*          cas ou le materiau n'est pas totalement casse
*          ---------------------------------------------
*
           IF(WMAX(JC).LT.WRUPT(JC)) THEN

             IF(ABS(W(JC)-WREOUV(JC)).LT.PRECIW) THEN

                IF(WMAX(JC).EQ.0.D0.OR.BTR.EQ.UN) THEN
*
*               le materiau vient d'atteindre la limite
*
                  CALL OTTOFU(XINVL,XLTR,WRUPT,BTR,BILIN,SBILI,W,
     &                      WMAX,SMAX,PENTE,JC)
                  FCRIT(JC)=SIGMA(JC)-SMAX(JC)

                ELSE

*
*
                   IF(IIMPI.EQ.42) THEN
                      PRINT *,'CAS W=WREOUV DANS OTTOEC'
                   ENDIF


                   FCRIT(JC)=SIGMA(JC)
                   IF(FCRIT(JC).GE.-PRECIZ) THEN
*
*            ici on pourrait aussi tester que w > wreouv
*
                     PENTE(JC) = SMAX(JC)/(WMAX(JC)-WREOUV(JC))
                     LEBIL(JC)=1
                     FCRIT(JC)= SIGMA(JC) -
     &                          PENTE(JC)*(W(JC)-WREOUV(JC))
                   ENDIF
                ENDIF
*

             ELSE IF(W(JC).GT.WREOUV(JC)) THEN


                IF(W(JC)-WMAX(JC).GT.PRECIW) THEN

                   PRINT *,' OTTOEC  -  W > WMAX  SELON ',JC
                   PRINT *,'W(JC) =',W(JC)
                   PRINT *,'WMAX(JC) =',WMAX(JC)
                   KERRE=7
                   RETURN
*
                ELSE IF(ABS(W(JC)-WMAX(JC)).LT.PRECIW) THEN
*
*
                   IF(IIMPI.EQ.42) THEN
                      PRINT *,'CAS W=WMAX DANS OTTOEC'
                      PRINT *,'ISING(JC) =',ISING(JC)
                   ENDIF
*
                   CALL OTTOFU(XINVL,XLTR,WRUPT,BTR,BILIN,
     &                         SBILI,W,WMAX,SMAX,PENTE,JC)
                   FCRIT(JC)=SIGMA(JC)-SMAX(JC)

                   IF(IIMPI.EQ.42) THEN
                      PRINT *,'SIGMA=',SIGMA(JC)
                      PRINT *,'SMAX =',SMAX(JC)
                      PRINT *,'FCRIT=',FCRIT(JC)
                   ENDIF
*
*                  CAS ISING=0  ON CALCULE 2 PENTES
*
                   PENTE2(JC) = SMAX(JC)/(WMAX(JC)-WREOUV(JC))
                   FCRIT2(JC) = SIGMA(JC)-PENTE2(JC)*(W(JC)-WREOUV(JC))
*
                   IF(ISING(JC).EQ.0) THEN
                     LEBIL(JC)=2
                     ISING(JC)=1
*
*                  CAS ISING=2  : PENTE POST-PIC
*
                   ELSE IF(ISING(JC).EQ.2) THEN
                     LEBIL(JC)=0
*
*                  CAS ISING=3  : PENTE SECANTE
*
                   ELSE IF(ISING(JC).EQ.3) THEN
                     LEBIL(JC)=1
                     PENTE(JC)=PENTE2(JC)
*
                     IF(W(JC).LT.WMAX(JC)) THEN
                        FCRIT(JC)= SIGMA(JC) -
     &                      PENTE(JC)*(W(JC)-WREOUV(JC))
                     ENDIF
                   ENDIF

                ELSE IF(W(JC).LT.WMAX(JC)) THEN

                   PENTE(JC) = SMAX(JC)/(WMAX(JC)-WREOUV(JC))
                   FCRIT(JC)= SIGMA(JC) - PENTE(JC)*(W(JC)-WREOUV(JC))
                   LEBIL(JC)=1

                ENDIF

             ELSE IF(W(JC).LT.WREOUV(JC)) THEN
                PRINT *,' OTTOEC  -  W < WREOUV SELON ',JC
                PRINT *,'W(JC) =',W(JC)
                PRINT *,'WREOUV(JC) =',WREOUV(JC)
                KERRE=7
                RETURN
             ENDIF
*
*          cas ou le materiau est totalement casse
*          ---------------------------------------
*
           ELSE IF(WMAX(JC).GE.WRUPT(JC)) THEN

             FCRIT(JC)=SIGMA(JC)

             IF(IIMPI.EQ.42) THEN
               PRINT *,'W(JC) =',W(JC)
               PRINT *,'WREOUV(JC) =',WREOUV(JC)
             ENDIF
*
             IF(ABS(W(JC)-WREOUV(JC)).LT.PRECIW) THEN

                IF(IIMPI.EQ.42) THEN
                    PRINT *,' OTTOEC - ON EST A LA LIMITE '
                ENDIF
*
                IF(FCRIT(JC).GE.-PRECIZ) THEN
                   PENTE(JC)=0.D0
                   LEBIL(JC)=1
                ENDIF
*
             ELSE IF(W(JC).GT.WREOUV(JC)) THEN
                LEBIL(JC)=1
                PENTE(JC)=0.D0
             ENDIF

           ENDIF

         ENDIF
         GO TO 100
*
  4      CONTINUE
*-----------------
*
         CALL OTTOCP(SIGMA,FCR4,XLTR,DFF,DGG,H4,
     &               PRECIE,PRECIZ,XCOMP,XLAMC,KERRE)


         FCRIT(4) = FCR4
*      IF(IIMPI.EQ.42) THEN
*        WRITE(IOIMP,78000) FCR4
*78000   FORMAT( 2X, ' OTTOEC - FCR4  '
*     &          /(1(1X,1PE12.5)/)/)
*      ENDIF
         GO TO 100
*
 100     CONTINUE
*
      ENDDO
*
      IF(IIMPI.EQ.42) THEN
        WRITE(IOIMP,77000) (FCRIT(IC),IC=1,4)
77000   FORMAT( 2X, ' OTTOEC - FCRIT '/(4(1X,1PE12.5)/)/)
        WRITE(IOIMP,77001) (LEBIL(IC),IC=1,4)
77001   FORMAT( 2X, ' OTTOEC - LEBIL '/(4I4)/)
        WRITE(IOIMP,77003) (PENTE(IC),IC=1,4)
77003   FORMAT( 2X, ' OTTOEC - PENTE '/(4(1X,1PE12.5)/)/)
      ENDIF
*
      RETURN
      END