uroto_tens2d.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/.
!||====================================================================
!||    uroto_tens2d       ../engine/source/materials/tools/uroto_tens2d.F
!||--- called by ------------------------------------------------------
!||    h3d_shell_tensor   ../engine/source/output/h3d/h3d_results/h3d_shell_tensor.F
!||    tensorc            ../engine/source/output/anim/generate/tensorc.F
!||====================================================================
      SUBROUTINE uroto_tens2d(NEL,SIG,DIR)
C-----------------------------------------------
C   I m p l i c i t   T y p e s
C-----------------------------------------------
#include      "implicit_f.inc"
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
      INTEGER ,INTENT(IN) :: NEL
      my_real ,DIMENSION(NEL,2) ,INTENT(IN)    :: dir
      my_real ,DIMENSION(NEL,3) ,INTENT(INOUT) :: sig
C-----------------------------------------------
C   L o c a l   V a r i a b l e s
C-----------------------------------------------
      INTEGER :: I
      my_real :: d11,d22,d12,s1,s2,s3
C-----------------------------------------------
      DO i = 1,nel
        d11 = dir(i,1)**2
        d22 = dir(i,2)**2
        d12 = dir(i,1)*dir(i,2)
        s1  = d11*sig(i,1) + d22*sig(i,2) - two*d12*sig(i,3)
        s2  = d22*sig(i,1) + d11*sig(i,2) + two*d12*sig(i,3)
        s3  = d12*(sig(i,1)-sig(i,2)) + (d11-d22)*sig(i,3)
c        S4 = DIR(I,2)*SIG(I,5)+DIR(I,1)*SIG(I,4)
c        S5 = DIR(I,1)*SIG(I,5)-DIR(I,2)*SIG(I,4)
        sig(i,1)=s1
        sig(i,2)=s2
        sig(i,3)=s3
c        SIG(I,4)=S4
c        SIG(I,5)=S5
      ENDDO
c-----------
      RETURN
      END