assem_q4.F

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!||====================================================================
!||    assem_q4      ../engine/source/implicit/assem_q4.F
!||--- called by ------------------------------------------------------
!||    q4ke2         ../engine/source/elements/solid_2d/quad4/q4ke2.F
!||--- calls      -----------------------------------------------------
!||    assem_kii     ../engine/source/implicit/imp_glob_k.F
!||    assem_kij     ../engine/source/implicit/imp_glob_k.F
!||--- uses       -----------------------------------------------------
!||    element_mod   ../common_source/modules/elements/element_mod.F90
!||====================================================================
      SUBROUTINE assem_q4(
     1                   IXQ   ,NEL   ,IDDL  ,NDOF  ,K_DIAG,
     2                   K_LT  ,IADK  ,JDIK  ,K11   ,K12   ,     
     3                   K13   ,K14   ,K22   ,K23   ,K24   ,
     4                   K33   ,K34   ,K44   ,OFF   )
      use element_mod , only : nixq
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 IXQ(NIXQ,*), NEL, IDDL(*), NDOF(*), IADK(*), JDIK(*)
      my_real
     .   K_DIAG(*), K_LT(*),
     .   K11(2,2,*), K12(2,2,*), K13(2,2,*), K14(2,2,*), K22(2,2,*), 
     .   k23(2,2,*), k24(2,2,*), k33(2,2,*), k34(2,2,*), k44(2,2,*),
     .   off(*)
C-----------------------------------------------
C   L o c a l   V a r i a b l e s
C-----------------------------------------------
      INTEGER I, J, EP, NN(MVSIZ,4)
      my_real
     .   KTP(3,3,MVSIZ)
C-----------------------------------------------
C   S o u r c e  L i n e s
C-----------------------------------------------
      DO i=1,4
        DO ep=1,nel
          nn(ep,i) = ixq(i+1,ep)
        ENDDO
      ENDDO
C
      DO ep=1,nel
        DO j=1,3
          ktp(1,j,ep) = zero
        ENDDO
        DO i=2,3
          ktp(i,1,ep) = zero
        ENDDO
      ENDDO
C-----block diagonal kii
      DO ep=1,nel
        DO j=1,2
        DO i=1,2
          ktp(i+1,j+1,ep) = k11(i,j,ep)
        ENDDO
        ENDDO
      ENDDO
      CALL assem_kii(nn(1,1),nel,iddl,iadk,k_diag,k_lt,ktp,3,off)
      DO ep=1,nel
        DO j=1,2
        DO i=1,2
          ktp(i+1,j+1,ep) = k22(i,j,ep)
        ENDDO
        ENDDO
      ENDDO
      CALL assem_kii(nn(1,2),nel,iddl,iadk,k_diag,k_lt,ktp,3,off)
      DO ep=1,nel
        DO j=1,2
        DO i=1,2
          ktp(i+1,j+1,ep) = k33(i,j,ep)
        ENDDO
        ENDDO
      ENDDO
      CALL assem_kii(nn(1,3),nel,iddl,iadk,k_diag,k_lt,ktp,3,off)
      DO ep=1,nel
        DO j=1,2
        DO i=1,2
          ktp(i+1,j+1,ep) = k44(i,j,ep)
        ENDDO
        ENDDO
      ENDDO
      CALL assem_kii(nn(1,4),nel,iddl,iadk,k_diag,k_lt,ktp,3,off)
C-----non diag kij
      DO ep=1,nel
        DO j=1,2
        DO i=1,2
          ktp(i+1,j+1,ep) = k12(i,j,ep)
        ENDDO
        ENDDO
      ENDDO
      CALL assem_kij(nn(1,1),nn(1,2),nel,iddl,iadk,jdik,
     .               k_diag,k_lt,ktp,3,off)
      DO ep=1,nel
        DO j=1,2
        DO i=1,2
          ktp(i+1,j+1,ep) = k13(i,j,ep)
        ENDDO
        ENDDO
      ENDDO
      CALL assem_kij(nn(1,1),nn(1,3),nel,iddl,iadk,jdik,
     .               k_diag,k_lt,ktp,3,off)
      DO ep=1,nel
        DO j=1,2
        DO i=1,2
          ktp(i+1,j+1,ep) = k14(i,j,ep)
        ENDDO
        ENDDO
      ENDDO
      CALL assem_kij(nn(1,1),nn(1,4),nel,iddl,iadk,jdik,
     .               k_diag,k_lt,ktp,3,off)
      DO ep=1,nel
        DO j=1,2
        DO i=1,2
          ktp(i+1,j+1,ep) = k23(i,j,ep)
        ENDDO
        ENDDO
      ENDDO
      CALL assem_kij(nn(1,2),nn(1,3),nel,iddl,iadk,jdik,
     .               k_diag,k_lt,ktp,3,off)
      DO ep=1,nel
        DO j=1,2
        DO i=1,2
          ktp(i+1,j+1,ep) = k24(i,j,ep)
        ENDDO
        ENDDO
      ENDDO
      CALL assem_kij(nn(1,2),nn(1,4),nel,iddl,iadk,jdik,
     .               k_diag,k_lt,ktp,3,off)
      DO ep=1,nel
        DO j=1,2
        DO i=1,2
          ktp(i+1,j+1,ep) = k34(i,j,ep)
        ENDDO
        ENDDO
      ENDDO
      CALL assem_kij(nn(1,3),nn(1,4),nel,iddl,iadk,jdik,
     .               k_diag,k_lt,ktp,3,off)
C
      RETURN
      END