s4fint3.F

Go to the documentation of this file.

Copyright>        OpenRadioss
Copyright>        Copyright (C) 1986-2025 Altair Engineering Inc.
Copyright>
Copyright>        This program is free software: you can redistribute it and/or modify
Copyright>        it under the terms of the GNU Affero General Public License as published by
Copyright>        the Free Software Foundation, either version 3 of the License, or
Copyright>        (at your option) any later version.
Copyright>
Copyright>        This program is distributed in the hope that it will be useful,
Copyright>        but WITHOUT ANY WARRANTY; without even the implied warranty of
Copyright>        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Copyright>        GNU Affero General Public License for more details.
Copyright>
Copyright>        You should have received a copy of the GNU Affero General Public License
Copyright>        along with this program.  If not, see <https://www.gnu.org/licenses/>.
Copyright>
Copyright>
Copyright>        Commercial Alternative: Altair Radioss Software
Copyright>
Copyright>        As an alternative to this open-source version, Altair also offers Altair Radioss
Copyright>        software under a commercial license.  Contact Altair to discuss further if the
Copyright>        commercial version may interest you: https://www.altair.com/radioss/.
!||====================================================================
!||    s4fint3   ../engine/source/elements/solid/solide4/s4fint3.F
!||--- called by ------------------------------------------------------
!||    s4forc3   ../engine/source/elements/solid/solide4/s4forc3.F
!||====================================================================
      SUBROUTINE s4fint3(SIG,
     .   PX1, PX2, PX3, PX4,
     .   PY1, PY2, PY3, PY4,
     .   PZ1, PZ2, PZ3, PZ4,
     .   F11,F21,F31,F12,F22,F32,F13,F23,F33,F14,F24,F34,
     .   VOL,QVIS,NEL,SVIS)
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   D u m m y   A r g u m e n t s
C-----------------------------------------------
      INTEGER NEL
C     REAL
      my_real
     .   SIG(NEL,6),
     .   PX1(*), PX2(*), PX3(*), PX4(*),  
     .   py1(*), py2(*), py3(*), py4(*),  
     .   pz1(*), pz2(*), pz3(*), pz4(*),  
     .   f11(*),f21(*),f31(*),f12(*),f22(*),f32(*),
     .   f13(*),f23(*),f33(*),f14(*),f24(*),f34(*),
     .   vol(*),qvis(*)
      my_real, DIMENSION(MVSIZ,6), INTENT(INOUT) :: svis
C-----------------------------------------------
C   L o c a l   V a r i a b l e s
C-----------------------------------------------
      INTEGER I
C     REAL
      my_real
     .   s1, s2, s3,
     .   s4, s5, s6,
     .   fint
C-----------------------------------------------
      DO i=1,nel
        s1=(sig(i,1)+svis(i,1)-qvis(i))*vol(i)
        s2=(sig(i,2)+svis(i,2)-qvis(i))*vol(i)
        s3=(sig(i,3)+svis(i,3)-qvis(i))*vol(i)
        s4=(sig(i,4)+svis(i,4))*vol(i)
        s5=(sig(i,5)+svis(i,5))*vol(i)
        s6=(sig(i,6)+svis(i,6))*vol(i)
C
        f11(i)=f11(i)-(s1*px1(i)+s4*py1(i)+s6*pz1(i))
        f21(i)=f21(i)-(s2*py1(i)+s4*px1(i)+s5*pz1(i))
        f31(i)=f31(i)-(s3*pz1(i)+s6*px1(i)+s5*py1(i))
        f12(i)=f12(i)-(s1*px2(i)+s4*py2(i)+s6*pz2(i))
        f22(i)=f22(i)-(s2*py2(i)+s4*px2(i)+s5*pz2(i))
        f32(i)=f32(i)-(s3*pz2(i)+s6*px2(i)+s5*py2(i))
        f13(i)=f13(i)-(s1*px3(i)+s4*py3(i)+s6*pz3(i))
        f23(i)=f23(i)-(s2*py3(i)+s4*px3(i)+s5*pz3(i))
        f33(i)=f33(i)-(s3*pz3(i)+s6*px3(i)+s5*py3(i))
        f14(i)=f14(i)-(s1*px4(i)+s4*py4(i)+s6*pz4(i))
        f24(i)=f24(i)-(s2*py4(i)+s4*px4(i)+s5*pz4(i))
        f34(i)=f34(i)-(s3*pz4(i)+s6*px4(i)+s5*py4(i))
      ENDDO
C
      RETURN
      END