DAMASK_EICMD/trunk/mesh.f90

210 lines
6.7 KiB
Fortran

!##############################################################
MODULE mesh
!##############################################################
use prec, only: pRe,pIn
implicit none
! ---------------------------
! _Nelems : total number of elements in mesh
! _Nnodes : total number of nodes in mesh
! _maxNnodes : max number of nodes in any element
! _maxNips : max number of IPs in any element
! _element : type, material, node indices
! _node : x,y,z coordinates (initially!)
! _nodeIndex : count of elements containing node,
! [element_num, node_index], ...
! _envIP : 6 neighboring IPs as [element_num, IP_index]
! order is +x, +y,+z, -x, -y, -z in local coord
! ---------------------------
integer(pIn) mesh_Nelems, mesh_Nnodes, mesh_maxNnodes,mesh_maxNips
integer(pIn), allocatable :: mesh_element (:,:)
integer(pIn), allocatable :: mesh_nodeIndex (:,:)
integer(pIn), allocatable :: mesh_envIP (:,:)
real(pRe), allocatable :: mesh_node (:,:)
CONTAINS
! ---------------------------
! subroutine mesh_init()
! subroutine mesh_parse_inputFile()
! ---------------------------
! ***********************************************************
! initialization
! ***********************************************************
SUBROUTINE mesh_init ()
mesh_Nelems = 0_pIn
mesh_Nnodes = 0_pIn
mesh_maxNips = 0_pIn
mesh_maxNnodes = 0_pIn
call mesh_parse_inputFile ()
END SUBROUTINE
! ***********************************************************
! parsing of input file
! ***********************************************************
FUNCTION mesh_parse_inputFile ()
use prec, only: pRe,pIn
use IO
implicit none
logical mesh_parse_inputFile
integer(pIn) i,j,positions(10*2+1)
integer(pIn) elem_num,elem_type,Nnodes,node_num,num_ip,mat,tp(70,2)
! Set a format to read the entire line (max. len is 80 characters)
610 FORMAT(A80)
if (.not. IO_open_inputFile(600)) then
mesh_parse_inputFile = .false.
return
endif
do while(.true.)
read(600,610,end=620) line
positions = IO_stringPos(line,3)
select case (IO_stringValue(line,positions,1)
!-----------------------------------
case ('sizing')
!-----------------------------------
mesh_Nelems = IO_intValue(line,positions,2)
mesh_Nnodes = IO_intValue(line,positions,3)
!-----------------------------------
case ('elements')
!-----------------------------------
select case (IO_intValue(line,positions,2)) ! elem type
case (3) ! 2D Triangle
mesh_maxNips = max(3,mesh_maxNips)
mesh_maxNnodes = max(3,mesh_maxNnodes)
case (6) ! 2D Quad.
mesh_maxNips = max(4,mesh_maxNips)
mesh_maxNnodes = max(4,mesh_maxNnodes)
case (7) ! 3D hexahedral
mesh_maxNips = max(8,mesh_maxNips)
mesh_maxNnodes = max(8,mesh_maxNnodes)
case default
mesh_maxNips = max(8,mesh_maxNips)
mesh_maxNnodes = max(8,mesh_maxNnodes)
end select
!-----------------------------------
case ('connectivity')
!-----------------------------------
allocate (mesh_element(mesh_Nelems,2+mesh_maxNips))
allocate (mesh_nodeIndex (mesh_Nnodes,1+mesh_maxNnodes*2)
allocate (mesh_envIP(mesh_Nelems,mesh_maxNips,6,2))
mesh_element = 0_pIn
mesh_nodeIndex = 0_pIn
mesh_envIP = 0_pIn
! MISSING: setting up of envIP
read(600,610,end=620) line ! skip line ??
do i=1,mesh_Nelems
read(600,610,end=620) line
positions = IO_stringPos(line,0) ! find all chunks
elem_num = IO_intValue(line,positions,1)
elem_type = IO_intValue(line,positions,2)
select case (elem_type)
case (3) ! 2D Triangle
Nnodes = 3
case (6) ! 2D Quad.
Nnodes = 4
case (7) ! 3D hexahedral
Nnodes = 8
case default
Nnodes = 8
end select
mesh_element(elem_num,1) = elem_type
do j=1,Nnodes ! store all node indices
node_num = IO_intValue(line,positions,2+j)
mesh_element(elem_num,1+j) = node_num
mesh_nodeIndex(node_num,1) = mesh_nodeIndex(node_num,1)+1 ! inc count
mesh_nodeIndex(node_num,mesh_nodeIndex(node_num,1)*2 ) = elem_num
mesh_nodeIndex(node_num,mesh_nodeIndex(node_num,1)*2+1) = j
end do
end do
!-----------------------------------
case ('coordinates')
!-----------------------------------
allocate (mesh_node(mesh_Nnodes,3)) ! x,y,z, per node
read(600,610,end=620) line ! skip line ??
do i=1,mesh_Nnodes
read(600,610,end=620) line
positions = IO_stringPos(line,0) ! find all (4) chunks
node_num = IO_intValue(line,positions,1)
do j=1,3 ! store x,y,z coordinates
mesh_node(node_num,j) = IO_floatValue(line,positions,1+j)
end do
end do
!-----------------------------------
case ('hypoelastic')
!-----------------------------------
! ***************************************************
! Search for key word "hypoelastic".
! This section contains the # of materials and
! the element range of each material
! ***************************************************
ELSE IF( line(1:11).eq.'hypoelastic' )THEN
mat=0
flag=0
DO WHILE( line(1:8).ne.'geometry' )
READ(600,610,END=620) line
i=1
DO WHILE( i.le.len(line)-8 )
IF( line(i:i+2).eq.'mat' )THEN
mat=mat+1
flag=1
END IF
i=i+1
END DO
IF( flag.eq.1 )THEN
flag=0
READ(600,610,END=620) line
READ(600,610,END=620) line
i=1
DO WHILE( line(i:i).eq.' ')
i=i+1
END DO
left=i
DO WHILE( line(i:i).ne.' ')
i=i+1
END DO
right=i-1
READ(UNIT=line(left:right), FMT=' (I5) ') tp(mat,1)
DO WHILE( (line(i:i).eq.' ').or.
& (line(i:i).eq.'t').or.
& (line(i:i).eq.'o') )
i=i+1
END DO
left=i
DO WHILE( line(i:i).ne.' ')
i=i+1
END DO
right=i-1
READ(UNIT=line(left:right), FMT=' (I5) ') tp(mat,2)
END IF
END DO
WRITE(6,*) 'mat: ',mat,' ',tp(1,1),' ',tp(1,2)
end select
END DO
! Code jumps to 620 when it reaches the end of the file
620 continue
WRITE(6,*) 'Finished with .dat file'
CALL FLUSH(6)
END FUNCTION
END MODULE mesh