C INCRE2 SOURCE CHAT 05/01/13 00:35:13 5004 SUBROUTINE INCRE2(SIG,VAR,EPSVPT,VARPT,XMAT,NSTRS0, & MFR,NVARI,NCOMAT) IMPLICIT INTEGER(I-N) IMPLICIT REAL*8(A-H,O-Z) DIMENSION SIG(*),VAR(*),EPSVPT(*),VARPT(*),XMAT(*) DIMENSION XX(6),XT1(6),XT2(6),AN(6),ANS(6),YY(6) DIMENSION SIG0(6),EPS0(6) PARAMETER (AMAX = 1.0D20 , AMIN = 1.D-10) DETIER = 2.0D0/3.0D0 ROOT = SQRT(DETIER) C-------------------------------------------------------------------| C******* EVALUATION OF J2 SIGMA - X | C-------------------------------------------------------------------I IF (MFR.EQ.5) THEN NSTRS=6 SIG0(1)=SIG(1) SIG0(2)=SIG(2) SIG0(3)=0.D0 SIG0(4)=SIG(3) SIG0(5)=SIG(4) SIG0(6)=SIG(5) ELSE NSTRS=NSTRS0 DO 10 I=1,NSTRS SIG0(I)=SIG(I) 10 CONTINUE ENDIF TRACE =(SIG0(1)+SIG0(2)+SIG0(3))/3.0D0 DO 70 I=1,NSTRS A = 0.0D0 IF (I.LE.3) A=1.0D0 XX(I) = SIG0(I)-A*TRACE - VAR(I)-VAR(NSTRS+I) 70 CONTINUE AJ2 = PROCON (XX,XX,NSTRS) AJ2 = SQRT(1.5D0*AJ2) C--------------------------------------------------------------------| C******* CALCUL OF SIGV/K | C -------------------------------------------------------------------I RR = VAR (4*NSTRS+2) RS = XMAT(10)*RR SK = (AJ2 - RS-XMAT(7))/( XMAT(8) + XMAT(9)*RR ) C--------------------------------------------------------------------| C******* CALCULATION OF EFFECTIVE INELASTIC STRAIN INCREMENT (P) | C -------------------------------------------------------------------I IF (SK.GT.0.0D0) THEN PPT1= XPUISS(SK,XMAT(6) ,AMAX) PPT2= XPUISS(SK,XMAT(6)+1.D0,AMAX) ELSE PPT1= 0.0D0 PPT2= 0.0D0 ENDIF T1 = XMAT(5)*PPT2 PPT2=1.0D20 IF(DABS(T1).LT.40.0D0) PPT2= DEXP(T1) PPT = PPT1 * PPT2 VARPT(4*NSTRS+1) = PPT C---------------------------------------------------------------------| C******* CALCULATION OF INELASTIC STRAIN INCREMENTS (EPSVPT) | C---------------------------------------------------------------------I DO 71 I=1,NSTRS,1 IF (PPT.EQ.0.0) THEN EPS0 (I) = 0.0D0 XX (I) = 0.0D0 VARPT(3*NSTRS+I)= 0.0D0 ELSE XX(I) = 1.5D0*XX(I)/AJ2 EPS0 (I) = XX(I)*PPT VARPT(3*NSTRS+I)=EPS0 (I) ENDIF 71 CONTINUE C P = VAR(4*NSTRS+1) C----------------------------------------------------------------| C ******* CALCULATION OF PI(P) | C----------------------------------------------------------------I T1 = XMAT(16)*P T2 = DEXP(-T1) PIP= XMAT(13)+(1.0D0-XMAT(13)) * T2 C----------------------------------------------------------------| C******* CALCULATION OF XII | C----------------------------------------------------------------I DO 72 I=1,NSTRS XT1(I)=VAR(I) XT2(I)=VAR(I+NSTRS) 72 CONTINUE X1II = 0.0D0 X2II = 0.0D0 IF(XMAT(17).NE.0.0D0) . X1II = SQRT(1.5D0*PROCON(XT1,XT1,NSTRS))/XMAT(17) IF(XMAT(18).NE.0.0D0) . X2II = SQRT(1.5D0*PROCON(XT2,XT2,NSTRS))/XMAT(18) COX1 = 0.0D0 COX2 = 0.0D0 IF(X1II.GT.0.0D0) COX1 = X1II**(XMAT(19)-1.0D0) IF(X2II.GT.0.0D0) COX2 = X2II**(XMAT(20)-1.0D0) C ----------------------------------------------------------------| C******* CALCULATION OF DX1 AND DX2 | C-----------------------------------------------------------------I DO 73 I=1,NSTRS VARPT( I)=0.0D0 73 VARPT(NSTRS+I)=0.0D0 DO 74 I=1,NSTRS T1 = DETIER * XMAT(11) * XMAT(12) * EPS0(I) T2 = XMAT(11) * PIP * XT1(I) * PPT T3 = COX1 * XT1(I) VARPT(I)= T1 - T2 -T3 T1 = DETIER * XMAT(14) * XMAT(15) * EPS0(I) T2 = XMAT(14) * PIP * XT2(I) * PPT T3 = COX2 * XT2(I) 74 VARPT(NSTRS+I)= T1 - T2 - T3 C-----------------------------------------------------------------| C******* CALCULATION OF DR | C-----------------------------------------------------------------I T1 = 1.0D0-(1.0D0-VAR(4*NSTRS+3)/XMAT(25))**2 QR = VAR(4*NSTRS+3)-XMAT(26)*T1 CO1= QR-VAR(4*NSTRS+2) CO = DABS(CO1) IF(CO.GT.0.0D0) CO = CO**(XMAT(22)-1.0D0) T1= XMAT(16)*(VAR(4*NSTRS+3)-VAR(4*NSTRS+2))*PPT T2= XMAT(21)*CO*CO1 DR= T1 + T2 VARPT(4*NSTRS+2)=DR C----------------------------------------------------------------| C******* CALCULATION OF PROD (N X N*) | C----------------------------------------------------------------I DO 75 I=1,NSTRS * A=1.0D0 * IF(I.GT.3) A = 2.0D0 YY(I)=VAR(3*NSTRS+I) - VAR(2*NSTRS+I) 75 CONTINUE AJ2= SQRT(1.5D0*PROCON(YY,YY,NSTRS)) IF(AJ2.LT.AMIN) THEN IF (AJ2.EQ.0.D0) AJ2=AMIN AJ20=AJ2*1.D20 DO 15 I=1,NSTRS YY(I)=YY(I)*1.D20 15 CONTINUE ELSE AJ20=AJ2 ENDIF * IF (AJ2.LT.AMIN) AJ20=AMIN DO 76 I= 1,NSTRS ANS(I) = SQRT(1.5D0)*YY(I)/AJ20 AN (I) = ROOT*XX(I) 76 CONTINUE FF = DETIER*AJ2-VAR(4*NSTRS+4) HF=0.0D0 IF(FF.GT.0.0D0) HF=1.0D0 ANAN1=PROCON(AN,ANS,NSTRS) ANANS=0.0D0 IF(ANAN1.GT.0.0) ANANS=ANAN1 C----------------------------------------------------------------| C******* CALCULATION OF DQ | C----------------------------------------------------------------I DQ = XMAT(23)*HF*ANANS*PPT VARPT(4*NSTRS+4)=DQ C----------------------------------------------------------------| C******* CALCULATION OF DGETA | C----------------------------------------------------------------I T1 = SQRT(1.5D0)*(1.0D0-XMAT(23))*HF*ANANS*PPT DO 78 I=1,NSTRS VARPT(2*NSTRS+I)= T1*ANS(I) 78 CONTINUE C----------------------------------------------------------------| C******* CALCULATION OF DQQ | C----------------------------------------------------------------I VARPT(4*NSTRS+3)=2.0D0*XMAT(24)*(XMAT(25)-VAR(4*NSTRS+3))*DQ C IF (MFR.EQ.5) THEN EPSVPT(1)=EPS0(1) EPSVPT(2)=EPS0(2) EPSVPT(3)=EPS0(4) EPSVPT(4)=EPS0(5) EPSVPT(5)=EPS0(6) ELSE DO 11 I=1,NSTRS EPSVPT(I)=EPS0(I) 11 CONTINUE ENDIF C RETURN END