1! 2! CalculiX - A 3-dimensional finite element program 3! Copyright (C) 1998-2021 Guido Dhondt 4! 5! This program is free software; you can redistribute it and/or 6! modify it under the terms of the GNU General Public License as 7! published by the Free Software Foundation(version 2); 8! 9! 10! This program is distributed in the hope that it will be useful, 11! but WITHOUT ANY WARRANTY; without even the implied warranty of 12! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13! GNU General Public License for more details. 14! 15! You should have received a copy of the GNU General Public License 16! along with this program; if not, write to the Free Software 17! Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 18! 19 subroutine objective_stress_tot(dgdx,df,ndesi,iobject,jqs, 20 & irows,dgdu) 21! 22 implicit none 23! 24 integer ndesi,iobject,idesvar,j,jqs(*),irows(*),idof 25! 26 real*8 dgdx(ndesi,*),df(*),dgdu(*) 27! 28! 29! ---------------------------------------------------------------- 30! Calculation of the total differential: 31! non-linear: dgdx = dgdx + dgdu * ( df ) 32! ---------------------------------------------------------------- 33! 34! Calculation of the total differential: 35! 36 do idesvar=1,ndesi 37 do j=jqs(idesvar),jqs(idesvar+1)-1 38 idof=irows(j) 39 dgdx(idesvar,iobject)=dgdx(idesvar,iobject) 40 & +dgdu(idof)*df(j) 41 enddo 42 enddo 43! 44 return 45 end 46