cpxpy3.F

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!||====================================================================
!||    cpxpy3        ../engine/source/elements/shell/coque/cpxpy3.F
!||--- called by ------------------------------------------------------
!||    cforc3        ../engine/source/elements/shell/coque/cforc3.F
!||    cforc3_crk    ../engine/source/elements/xfem/cforc3_crk.F
!||--- uses       -----------------------------------------------------
!||    element_mod   ../common_source/modules/elements/element_mod.F90
!||====================================================================
      SUBROUTINE cpxpy3(JFT ,JLT ,PM  ,STI  ,SMSTR,
     2                  PX1  ,PX2 ,PY1 ,PY2 ,STIR,
     3                  IXC  ,AREA,X2  ,X3  ,X4  , 
     4                  Y2   ,Y3  ,Y4  ,Z2  ,THK0,  
     5                  MAT  ,NEL )
      use element_mod , only : nixc
C-----------------------------------------------
C   I m p l i c i t   T y p e s
C-----------------------------------------------
#include      "implicit_f.inc"
C-----------------------------------------------
C   G l o b a l   P a r a m e t e r s
C-----------------------------------------------
#include      "mvsiz_p.inc"
C-----------------------------------------------
C   C o m m o n   B l o c k s
C-----------------------------------------------
#include      "param_c.inc"
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
      INTEGER MAT(MVSIZ), IXC(NIXC,*), JFT, JLT,NEL
C     REAL
      my_real
     .   PM(NPROPM,*), STI(*), STIR(*),SMSTR(*),
     .   px1(*), px2(*), py1(*), py2(*),
     .   x2(mvsiz), x3(mvsiz), x4(mvsiz),area(mvsiz),
     .   y2(mvsiz), y3(mvsiz), y4(mvsiz), z2(mvsiz),thk0(mvsiz)
C-----------------------------------------------
C   L o c a l   V a r i a b l e s
C-----------------------------------------------
      INTEGER I, II(4), MX
C     REAL
      my_real
     .     YOUNG , 
     .     pxx, al2
C=======================================================================
      mx = mat(jft)  
      young=pm(20,mx)
C
      DO i=1,4
        ii(i) = nel*(i-1)
      ENDDO
C
      DO i=jft,jlt
        z2(i)  = zero
        px1(i) = smstr(ii(1)+i)
        px2(i) = smstr(ii(2)+i)
        py1(i) = smstr(ii(3)+i)
        py2(i) = smstr(ii(4)+i)
        x2(i)  =-two*py1(i)
        y2(i)  = zero
        x3(i)  =-two*py2(i)
        y3(i)  = two*px2(i)
        x4(i)  = zero
        y4(i)  =-two*px1(i)
        z2(i)  = zero
        area(i)= two*(py2(i)*px1(i)-py1(i)*px2(i))
      ENDDO
C
      DO i=jft,jlt
        pxx = max(px1(i)**2+py1(i)**2,px2(i)**2+py2(i)**2)
        sti(i) = young * pxx  * thk0(i) / area(i)
        stir(i)= zero
      ENDDO
C
      DO i=jft,jlt
        IF (ixc(4,i) == ixc(5,i)) THEN
          al2= (py1(i)+py2(i))**2
          al2= min(al2, px1(i)**2+py1(i)**2 )
          al2= four * min(al2, px2(i)**2+py2(i)**2 )
          sti(i) = half * area(i) * thk0(i) * young / al2
        ENDIF
      ENDDO
C-----------
      RETURN
      END