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DAMASK_EICMD
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Merge branch 'development' into pytest

This commit is contained in:
Martin Diehl 2019-12-02 12:47:37 +01:00
parent 80002e6cfd a4fdad78a4
commit fede8225bc
18 changed files with 82 additions and 277 deletions
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7
.gitlab-ci.yml
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@ -308,13 +308,6 @@ nonlocal_densityConservation:
- master
- release
Spectral_ipNeighborhood:
stage: grid
script: Spectral_ipNeighborhood/test.py
except:
- master
- release
RGC_DetectChanges:
stage: grid
script: RGC_DetectChanges/test.py

2
PRIVATE

@ -1 +1 @@
Subproject commit a3a88933cbb92b81d481305ce93374917baf3980
Subproject commit 66d562c755cd9aa4bbb8280c509383014acd52db

2
VERSION
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@ -1 +1 @@
v2.0.3-1097-ga7fca4df
v2.0.3-1111-g374980da

9
examples/ConfigFiles/Crystallite_All.config
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@ -1,9 +0,0 @@
[all]
(output) orientation # quaternion
(output) grainrotation # deviation from initial orientation as axis (1-3) and angle in degree (4) in crystal reference coordinates
(output) F # deformation gradient tensor
(output) Fe # elastic deformation gradient tensor
(output) Fp # plastic deformation gradient tensor
(output) P # first Piola-Kichhoff stress tensor
(output) S # second Piola-Kichhoff stress tensor
(output) Lp # plastic velocity gradient tensor

12
examples/SpectralMethod/Polycrystal/material.config
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@ -5,18 +5,6 @@
[SX]
mech none
#-------------------#
<crystallite>
#-------------------#
[almostAll]
(output) orientation # quaternion
(output) grainrotation # deviation from initial orientation as axis (1-3) and angle in degree (4)
(output) F # deformation gradient tensor
(output) Fe # elastic deformation gradient tensor
(output) Fp # plastic deformation gradient tensor
(output) P # first Piola-Kichhoff stress tensor
(output) Lp # plastic velocity gradient tensor
#-------------------#
<phase>
#-------------------#

12
processing/post/DADF5_postResults.py
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@ -59,14 +59,14 @@ for filename in options.filenames:
data = np.concatenate((data,coords),1)
header+=' 1_pos 2_pos 3_pos'
results.set_visible('materialpoints',False)
results.set_visible('constituents', True)
for label in options.con:
for p in results.iter_visible('con_physics'):
for c in results.iter_visible('constituents'):
x = results.get_dataset_location(label)
if len(x) == 0:
continue
array = results.read_dataset(x,0,plain=True)
d = int(np.product(np.shape(array)[1:]))
d = np.product(np.shape(array)[1:])
data = np.concatenate((data,np.reshape(array,[np.product(results.grid),d])),1)
if d>1:
@ -74,14 +74,14 @@ for filename in options.filenames:
else:
header+=' '+label
results.set_visible('constituents', False)
results.set_visible('materialpoints',True)
for label in options.mat:
for p in results.iter_visible('mat_physics'):
for m in results.iter_visible('materialpoints'):
x = results.get_dataset_location(label)
if len(x) == 0:
continue
array = results.read_dataset(x,0,plain=True)
d = int(np.product(np.shape(array)[1:]))
d = np.product(np.shape(array)[1:])
data = np.concatenate((data,np.reshape(array,[np.product(results.grid),d])),1)
if d>1:

1
processing/post/DADF5_vtk_cells.py
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@ -74,7 +74,6 @@ for filename in options.filenames:
results.set_visible('materialpoints',False)
results.set_visible('constituents', True)
for label in options.con:
for p in results.iter_visible('con_physics'):
if p != 'generic':
for c in results.iter_visible('constituents'):

2
src/CPFEM2.f90
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@ -57,10 +57,10 @@ subroutine CPFEM_initAll
call config_init
call math_init
call rotations_init
call mesh_init
call lattice_init
call HDF5_utilities_init
call results_init
call mesh_init
call material_init
call constitutive_init
call crystallite_init

6
src/config.f90
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@ -85,6 +85,7 @@ subroutine config_init
case (trim('crystallite'))
call parse_materialConfig(config_name_crystallite,config_crystallite,line,fileContent(i+1:))
if (verbose) write(6,'(a)') ' Crystallite parsed'; flush(6)
deallocate(config_crystallite)
case (trim('homogenization'))
call parse_materialConfig(config_name_homogenization,config_homogenization,line,fileContent(i+1:))
@ -102,8 +103,6 @@ subroutine config_init
call IO_error(160,ext_msg='<homogenization>')
if (.not. allocated(config_microstructure) .or. size(config_microstructure) < 1) &
call IO_error(160,ext_msg='<microstructure>')
if (.not. allocated(config_crystallite) .or. size(config_crystallite) < 1) &
call IO_error(160,ext_msg='<crystallite>')
if (.not. allocated(config_phase) .or. size(config_phase) < 1) &
call IO_error(160,ext_msg='<phase>')
if (.not. allocated(config_texture) .or. size(config_texture) < 1) &
@ -295,9 +294,6 @@ subroutine config_deallocate(what)
case('material.config/microstructure')
deallocate(config_microstructure)
case('material.config/crystallite')
deallocate(config_crystallite)
case('material.config/homogenization')
deallocate(config_homogenization)

159
src/crystallite.f90
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@ -22,22 +22,10 @@ module crystallite
use discretization
use lattice
use plastic_nonlocal
use geometry_plastic_nonlocal, only: &
nIPneighbors => geometry_plastic_nonlocal_nIPneighbors, &
IPneighborhood => geometry_plastic_nonlocal_IPneighborhood
use HDF5_utilities
use results
implicit none
private
character(len=64), dimension(:,:), allocatable :: &
crystallite_output !< name of each post result output
integer, public, protected :: &
crystallite_maxSizePostResults !< description not available
integer, dimension(:), allocatable, public, protected :: &
crystallite_sizePostResults !< description not available
integer, dimension(:,:), allocatable :: &
crystallite_sizePostResult !< description not available
real(pReal), dimension(:,:,:), allocatable, public :: &
crystallite_dt !< requested time increment of each grain
@ -90,21 +78,11 @@ module crystallite
enum, bind(c)
enumerator :: undefined_ID, &
phase_ID, &
texture_ID, &
orientation_ID, &
grainrotation_ID, &
defgrad_ID, &
fe_ID, &
fp_ID, &
fi_ID, &
lp_ID, &
li_ID, &
p_ID, &
s_ID, &
elasmatrix_ID, &
neighboringip_ID, &
neighboringelement_ID
elasmatrix_ID
end enum
integer(kind(undefined_ID)),dimension(:,:), allocatable :: &
crystallite_outputID !< ID of each post result output
@ -213,13 +191,6 @@ subroutine crystallite_init
allocate(crystallite_requested(cMax,iMax,eMax), source=.false.)
allocate(crystallite_todo(cMax,iMax,eMax), source=.false.)
allocate(crystallite_converged(cMax,iMax,eMax), source=.true.)
allocate(crystallite_output(maxval(crystallite_Noutput), &
size(config_crystallite))) ; crystallite_output = ''
allocate(crystallite_outputID(maxval(crystallite_Noutput), &
size(config_crystallite)), source=undefined_ID)
allocate(crystallite_sizePostResults(size(config_crystallite)),source=0)
allocate(crystallite_sizePostResult(maxval(crystallite_Noutput), &
size(config_crystallite)), source=0)
num%subStepMinCryst = config_numerics%getFloat('substepmincryst', defaultVal=1.0e-3_pReal)
num%subStepSizeCryst = config_numerics%getFloat('substepsizecryst', defaultVal=0.25_pReal)
@ -266,55 +237,6 @@ subroutine crystallite_init
integrateState => integrateStateRKCK45
end select
do c = 1, size(config_crystallite)
#if defined(__GFORTRAN__)
str = ['GfortranBug86277']
str = config_crystallite(c)%getStrings('(output)',defaultVal=str)
if (str(1) == 'GfortranBug86277') str = [character(len=65536)::]
#else
str = config_crystallite(c)%getStrings('(output)',defaultVal=[character(len=65536)::])
#endif
do o = 1, size(str)
crystallite_output(o,c) = str(o)
outputName: select case(str(o))
case ('phase') outputName
crystallite_outputID(o,c) = phase_ID
case ('texture') outputName
crystallite_outputID(o,c) = texture_ID
case ('orientation') outputName
crystallite_outputID(o,c) = orientation_ID
case ('grainrotation') outputName
crystallite_outputID(o,c) = grainrotation_ID
case ('defgrad','f') outputName ! ToDo: no alias (f only)
crystallite_outputID(o,c) = defgrad_ID
case ('fe') outputName
crystallite_outputID(o,c) = fe_ID
case ('fp') outputName
crystallite_outputID(o,c) = fp_ID
case ('fi') outputName
crystallite_outputID(o,c) = fi_ID
case ('lp') outputName
crystallite_outputID(o,c) = lp_ID
case ('li') outputName
crystallite_outputID(o,c) = li_ID
case ('p','firstpiola','1stpiola') outputName ! ToDo: no alias (p only)
crystallite_outputID(o,c) = p_ID
case ('s','tstar','secondpiola','2ndpiola') outputName ! ToDo: no alias (s only)
crystallite_outputID(o,c) = s_ID
case ('elasmatrix') outputName
crystallite_outputID(o,c) = elasmatrix_ID
case ('neighboringip') outputName ! ToDo: this is not a result, it is static. Should be written out by mesh
crystallite_outputID(o,c) = neighboringip_ID
case ('neighboringelement') outputName ! ToDo: this is not a result, it is static. Should be written out by mesh
crystallite_outputID(o,c) = neighboringelement_ID
case default outputName
call IO_error(105,ext_msg=trim(str(o))//' (Crystallite)')
end select outputName
enddo
enddo
allocate(output_constituent(size(config_phase)))
do c = 1, size(config_phase)
#if defined(__GFORTRAN__)
@ -327,47 +249,14 @@ subroutine crystallite_init
#endif
enddo
do r = 1,size(config_crystallite)
do o = 1,crystallite_Noutput(r)
select case(crystallite_outputID(o,r))
case(orientation_ID)
mySize = 4
case(defgrad_ID,fp_ID,p_ID)
mySize = 9
case(neighboringip_ID,neighboringelement_ID)
mySize = nIPneighbors
case default
mySize = 0
end select
crystallite_sizePostResult(o,r) = mySize
crystallite_sizePostResults(r) = crystallite_sizePostResults(r) + mySize
enddo
enddo
crystallite_maxSizePostResults = &
maxval(crystallite_sizePostResults(microstructure_crystallite),microstructure_active)
!--------------------------------------------------------------------------------------------------
! write description file for crystallite output
if (worldrank == 0) then
call IO_write_jobFile(FILEUNIT,'outputCrystallite')
do r = 1,size(config_crystallite)
if (any(microstructure_crystallite(discretization_microstructureAt) == r)) then
write(FILEUNIT,'(/,a,/)') '['//trim(config_name_crystallite(r))//']'
do o = 1,crystallite_Noutput(r)
write(FILEUNIT,'(a,i4)') trim(crystallite_output(o,r))//char(9),crystallite_sizePostResult(o,r)
enddo
endif
enddo
write(FILEUNIT,'(/,a,/)') '[not supported anymore]'
close(FILEUNIT)
endif
call config_deallocate('material.config/phase')
call config_deallocate('material.config/crystallite')
!--------------------------------------------------------------------------------------------------
! initialize
@ -869,59 +758,21 @@ function crystallite_postResults(ipc, ip, el)
ip, & !< integration point index
ipc !< grain index
real(pReal), dimension(1+crystallite_sizePostResults(microstructure_crystallite(discretization_microstructureAt(el))) + &
real(pReal), dimension(1+ &
1+plasticState(material_phaseAt(ipc,el))%sizePostResults + &
sum(sourceState(material_phaseAt(ipc,el))%p(:)%sizePostResults)) :: &
crystallite_postResults
integer :: &
o, &
c, &
crystID, &
mySize, &
n
crystID = microstructure_crystallite(discretization_microstructureAt(el))
crystallite_postResults = 0.0_pReal
crystallite_postResults(1) = real(crystallite_sizePostResults(crystID),pReal) ! header-like information (length)
crystallite_postResults(1) = 0.0_pReal ! header-like information (length)
c = 1
do o = 1,crystallite_Noutput(crystID)
mySize = 0
select case(crystallite_outputID(o,crystID))
case (orientation_ID)
mySize = 4
crystallite_postResults(c+1:c+mySize) = crystallite_orientation(ipc,ip,el)%asQuaternion()
! remark: tensor output is of the form 11,12,13, 21,22,23, 31,32,33
! thus row index i is slow, while column index j is fast. reminder: "row is slow"
case (defgrad_ID)
mySize = 9
crystallite_postResults(c+1:c+mySize) = &
reshape(transpose(crystallite_partionedF(1:3,1:3,ipc,ip,el)),[mySize])
case (fp_ID)
mySize = 9
crystallite_postResults(c+1:c+mySize) = &
reshape(transpose(crystallite_Fp(1:3,1:3,ipc,ip,el)),[mySize])
case (p_ID)
mySize = 9
crystallite_postResults(c+1:c+mySize) = &
reshape(transpose(crystallite_P(1:3,1:3,ipc,ip,el)),[mySize])
case(neighboringelement_ID)
mySize = nIPneighbors
crystallite_postResults(c+1:c+mySize) = 0.0_pReal
forall (n = 1:mySize) &
crystallite_postResults(c+n) = real(IPneighborhood(1,n,ip,el),pReal)
case(neighboringip_ID)
mySize = nIPneighbors
crystallite_postResults(c+1:c+mySize) = 0.0_pReal
forall (n = 1:mySize) &
crystallite_postResults(c+n) = real(IPneighborhood(2,n,ip,el),pReal)
end select
c = c + mySize
enddo
crystallite_postResults(c+1) = real(plasticState(material_phaseAt(ipc,el))%sizePostResults,pReal) ! size of constitutive results
c = c + 1
if (size(crystallite_postResults)-c > 0) &
@ -945,7 +796,7 @@ subroutine crystallite_results
do p=1,size(config_name_phase)
group = trim('current/constituent')//'/'//trim(config_name_phase(p))//'/generic'
call HDF5_closeGroup(results_addGroup(group))
call results_closeGroup(results_addGroup(group))
do o = 1, size(output_constituent(p)%label)
select case (output_constituent(p)%label(o))

5
src/discretization.f90
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@ -6,9 +6,6 @@ module discretization
use prec
use results
#if defined(PETSc) || defined(DAMASK_HDF5)
use HDF5_utilities
#endif
implicit none
private
@ -84,7 +81,7 @@ subroutine discretization_results
#if defined(PETSc) || defined(DAMASK_HDF5)
real(pReal), dimension(:,:), allocatable :: u
call HDF5_closeGroup(results_addGroup(trim('current/geometry')))
call results_closeGroup(results_addGroup(trim('current/geometry')))
u = discretization_NodeCoords (1:3,:discretization_sharedNodesBeginn) &
- discretization_NodeCoords0(1:3,:discretization_sharedNodesBeginn)

2
src/geometry_plastic_nonlocal.f90
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@ -122,7 +122,7 @@ subroutine geometry_plastic_nonlocal_results
integer, dimension(:), allocatable :: shp
#if defined(DAMASK_HDF5)
#if defined(PETSc) || defined(DAMASK_HDF5)
call results_openJobFile
writeVolume: block

9
src/grid/DAMASK_grid.f90
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@ -27,7 +27,6 @@ program DAMASK_spectral
use grid_mech_FEM
use grid_damage_spectral
use grid_thermal_spectral
use HDF5_utilities
use results
use rotations
@ -319,15 +318,9 @@ program DAMASK_spectral
enddo
close(fileUnit)
call results_openJobFile
call HDF5_closeGroup(results_addGroup('geometry'))
call results_addAttribute('grid',grid,'geometry')
call results_addAttribute('size',geomSize,'geometry')
call results_closeJobFile
!--------------------------------------------------------------------------------------------------
! doing initialization depending on active solvers
call Utilities_init()
call Utilities_init
do field = 1, nActiveFields
select case (loadCases(1)%ID(field))
case(FIELD_MECH_ID)

8
src/homogenization.f90
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@ -262,7 +262,7 @@ subroutine homogenization_init
materialpoint_sizeResults = 1 & ! grain count
+ 1 + thermal_maxSizePostResults &
+ damage_maxSizePostResults &
+ homogenization_maxNgrains * (1 + crystallite_maxSizePostResults & ! crystallite size & crystallite results
+ homogenization_maxNgrains * (1 & ! crystallite size
+ 1 + constitutive_plasticity_maxSizePostResults & ! constitutive size & constitutive results
+ constitutive_source_maxSizePostResults)
allocate(materialpoint_results(materialpoint_sizeResults,discretization_nIP,discretization_nElem))
@ -592,15 +592,13 @@ subroutine materialpoint_postResults
thePos, &
theSize, &
myNgrains, &
myCrystallite, &
g, & !< grain number
i, & !< integration point number
e !< element number
!$OMP PARALLEL DO PRIVATE(myNgrains,myCrystallite,thePos,theSize)
!$OMP PARALLEL DO PRIVATE(myNgrains,thePos,theSize)
elementLooping: do e = FEsolving_execElem(1),FEsolving_execElem(2)
myNgrains = homogenization_Ngrains(material_homogenizationAt(e))
myCrystallite = microstructure_crystallite(discretization_microstructureAt(e))
IpLooping: do i = FEsolving_execIP(1,e),FEsolving_execIP(2,e)
thePos = 0
@ -618,7 +616,7 @@ subroutine materialpoint_postResults
thePos = thePos + 1
grainLooping :do g = 1,myNgrains
theSize = 1 + crystallite_sizePostResults(myCrystallite) + &
theSize = 1 + &
1 + plasticState (material_phaseAt(g,e))%sizePostResults + &
sum(sourceState(material_phaseAt(g,e))%p(:)%sizePostResults)
materialpoint_results(thePos+1:thePos+theSize,i,e) = crystallite_postResults(g,i,e) ! tell crystallite results

30
src/material.f90
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@ -116,13 +116,11 @@ module material
phase_Noutput, & !< number of '(output)' items per phase
phase_elasticityInstance, & !< instance of particular elasticity of each phase
phase_plasticityInstance, & !< instance of particular plasticity of each phase
crystallite_Noutput, & !< number of '(output)' items per crystallite setting
homogenization_Ngrains, & !< number of grains in each homogenization
homogenization_Noutput, & !< number of '(output)' items per homogenization
homogenization_typeInstance, & !< instance of particular type of each homogenization
thermal_typeInstance, & !< instance of particular type of each thermal transport
damage_typeInstance, & !< instance of particular type of each nonlocal damage
microstructure_crystallite !< crystallite setting ID of each microstructure ! DEPRECATED !!!!
damage_typeInstance !< instance of particular type of each nonlocal damage
real(pReal), dimension(:), allocatable, public, protected :: &
thermal_initialT, & !< initial temperature per each homogenization
@ -245,9 +243,6 @@ subroutine material_init
call material_parseMicrostructure()
if (iand(myDebug,debug_levelBasic) /= 0) write(6,'(a)') ' Microstructure parsed'; flush(6)
call material_parseCrystallite()
if (iand(myDebug,debug_levelBasic) /= 0) write(6,'(a)') ' Crystallite parsed'; flush(6)
call material_parseHomogenization()
if (iand(myDebug,debug_levelBasic) /= 0) write(6,'(a)') ' Homogenization parsed'; flush(6)
@ -277,9 +272,6 @@ subroutine material_init
allocate(temperatureRate (material_Nhomogenization))
do m = 1,size(config_microstructure)
if(microstructure_crystallite(m) < 1 .or. &
microstructure_crystallite(m) > size(config_crystallite)) &
call IO_error(150,m,ext_msg='crystallite')
if(minval(microstructure_phase(1:microstructure_Nconstituents(m),m)) < 1 .or. &
maxval(microstructure_phase(1:microstructure_Nconstituents(m),m)) > size(config_phase)) &
call IO_error(150,m,ext_msg='phase')
@ -298,8 +290,7 @@ subroutine material_init
enddo
write(6,'(/,a14,18x,1x,a11,1x,a12,1x,a13)') 'microstructure','crystallite','constituents'
do m = 1,size(config_microstructure)
write(6,'(1x,a32,1x,i11,1x,i12)') config_name_microstructure(m), &
microstructure_crystallite(m), &
write(6,'(1x,a32,1x,i12)') config_name_microstructure(m), &
microstructure_Nconstituents(m)
if (microstructure_Nconstituents(m) > 0) then
do c = 1,microstructure_Nconstituents(m)
@ -500,7 +491,6 @@ subroutine material_parseMicrostructure
character(len=65536) :: &
tag
allocate(microstructure_crystallite(size(config_microstructure)), source=0)
allocate(microstructure_Nconstituents(size(config_microstructure)), source=0)
allocate(microstructure_active(size(config_microstructure)), source=.false.)
@ -512,7 +502,6 @@ subroutine material_parseMicrostructure
do m=1, size(config_microstructure)
microstructure_Nconstituents(m) = config_microstructure(m)%countKeys('(constituent)')
microstructure_crystallite(m) = config_microstructure(m)%getInt('crystallite')
enddo
microstructure_maxNconstituents = maxval(microstructure_Nconstituents)
@ -547,21 +536,6 @@ subroutine material_parseMicrostructure
end subroutine material_parseMicrostructure
!--------------------------------------------------------------------------------------------------
!> @brief parses the crystallite part in the material configuration file
!--------------------------------------------------------------------------------------------------
subroutine material_parseCrystallite
integer :: c
allocate(crystallite_Noutput(size(config_crystallite)),source=0)
do c=1, size(config_crystallite)
crystallite_Noutput(c) = config_crystallite(c)%countKeys('(output)')
enddo
end subroutine material_parseCrystallite
!--------------------------------------------------------------------------------------------------
!> @brief parses the phase part in the material configuration file
!--------------------------------------------------------------------------------------------------

9
src/mesh_grid.f90
View File

@ -14,6 +14,7 @@ module mesh_grid
use IO
use debug
use numerics
use results
use discretization
use geometry_plastic_nonlocal
use FEsolving
@ -99,6 +100,14 @@ subroutine mesh_init(ip,el)
FEsolving_execElem = [1,product(myGrid)] ! parallel loop bounds set to comprise all elements
allocate(FEsolving_execIP(2,product(myGrid)),source=1) ! parallel loop bounds set to comprise the only IP
!--------------------------------------------------------------------------------------------------
! store geometry information for post processing
call results_openJobFile
call results_closeGroup(results_addGroup('geometry'))
call results_addAttribute('grid',grid,'geometry')
call results_addAttribute('size',geomSize,'geometry')
call results_closeJobFile
!--------------------------------------------------------------------------------------------------
! geometry information required by the nonlocal CP model
call geometry_plastic_nonlocal_setIPvolume(reshape([(product(mySize/real(myGrid,pReal)),j=1,product(myGrid))], &

4
src/mesh_marc.f90
View File

@ -119,15 +119,17 @@ subroutine mesh_init(ip,el)
reshape(connectivity_cell,[elem%NcellNodesPerCell,elem%nIPs*nElems]),&
node0_cell,ip_reshaped)
!--------------------------------------------------------------------------------------------------
! geometry information required by the nonlocal CP model
call geometry_plastic_nonlocal_setIPvolume(IPvolume(elem,node0_cell,connectivity_cell))
unscaledNormals = IPareaNormal(elem,nElems,connectivity_cell,node0_cell)
call geometry_plastic_nonlocal_setIParea(norm2(unscaledNormals,1))
call geometry_plastic_nonlocal_setIPareaNormal(unscaledNormals/spread(norm2(unscaledNormals,1),1,3))
call geometry_plastic_nonlocal_results
end subroutine mesh_init
!--------------------------------------------------------------------------------------------------
!> @brief Writes all information needed for the DADF5 geometry
!--------------------------------------------------------------------------------------------------

14
src/results.f90
View File

@ -50,6 +50,7 @@ module results
results_addIncrement, &
results_addGroup, &
results_openGroup, &
results_closeGroup, &
results_writeDataset, &
results_setLink, &
results_addAttribute, &
@ -120,6 +121,7 @@ subroutine results_addIncrement(inc,time)
end subroutine results_addIncrement
!--------------------------------------------------------------------------------------------------
!> @brief open a group from the results file
!--------------------------------------------------------------------------------------------------
@ -144,6 +146,18 @@ integer(HID_T) function results_addGroup(groupName)
end function results_addGroup
!--------------------------------------------------------------------------------------------------
!> @brief close a group
!--------------------------------------------------------------------------------------------------
subroutine results_closeGroup(group_id)
integer(HID_T), intent(in) :: group_id
call HDF5_closeGroup(group_id)
end subroutine results_closeGroup
!--------------------------------------------------------------------------------------------------
!> @brief set link to object in results file
!--------------------------------------------------------------------------------------------------