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mesh_refinement_1.jou
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mesh_refinement_1.jou
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#!cubit
reset
#beam geometry
create brick x 10 y 1 z 0.2
create Cylinder height 2 radius 1
create Cylinder height 2 radius 0.5
create Cylinder height 2 radius 0.25
move volume 2 y -0.9
move volume 3 x 3 y 0.45
move volume 4 x -3 y -0.6
subtract volume 2 from volume 1
subtract volume 3 from volume 1
subtract volume 4 from volume 1
block 1 add volume 1
# node sets
nodeset 1 add surface 4
nodeset 1 name "x0"
nodeset 2 add surface 6
nodeset 2 name "xl"
# material
create material "Steel" property_group "CalculiX-FEA"
modify material "Steel" scalar_properties "CCX_ELASTIC_USE_CARD" 1
modify material "Steel" scalar_properties "CCX_ELASTIC_ISO_USE_CARD" 1
modify material "Steel" matrix_property "CCX_ELASTIC_ISO_MODULUS_VS_POISSON_VS_TEMPERATURE" 210000 0.3 0
modify material "Steel" scalar_properties "CCX_PLASTIC_ISO_USE_CARD" 1
modify material "Steel" scalar_properties "CCX_EXPANSION_ISO_USE_CARD" 1
modify material "Steel" scalar_properties "CCX_CONDUCTIVITY_ISO_USE_CARD" 1
# section
ccx create section solid block 1 material 1
# vertices for ref and rot node
create vertex location on surface 6 center
create vertex location on surface 6 center
# rigid body constraint
ccx create constraint rigid body nodeset 2 ref 27 rot 28
# load
create force on vertex 27 force value 5 direction 0 -1 0
# bc
create displacement on nodeset 1 dof 1 dof 2 dof 3 fix 0
# outputs
ccx create fieldoutput name "node_output" node
ccx modify fieldoutput 1 node
ccx modify fieldoutput 1 node key_on RF U
ccx modify fieldoutput 1 node key_off CP DEPF DEPT DTF HCRI KEQ MACH MAXU MF NT PNT POT PRF PS PSF PT PTF PU RFL SEN TS TSF TT TTF TURB V VF
ccx create fieldoutput name "element_output" element
ccx modify fieldoutput 2 element
ccx modify fieldoutput 2 element key_on E S ERR
ccx modify fieldoutput 2 element key_off CEEQ ECD EMFB EMFE ENER HER HFL HFLF MAXE MAXS ME PEEQ PHS SF SMID SNEG SPOS SVF SDV THE ZZS
ccx create historyoutput name "node_output" node
ccx create historyoutput name "element_output" element
ccx modify historyoutput 1 node nodeset 3
ccx modify historyoutput 1 node key_on U RF
ccx modify historyoutput 1 node key_off NT TSF TTF PN PSF PTF MACH CP VF DEPF TURB MF RFL
ccx modify historyoutput 2 element block 1
ccx modify historyoutput 2 element key_on S E
ccx modify historyoutput 2 element key_off SVF ME PEEQ CEEQ ENER SDV HFL HFLF COORD ELSE ELKE EVOL EMAS EBHE CENT
# steps
ccx create step name "Static" static
#ccx modify step 1 parameter nlgeom_yes
#ccx modify step 1 static totaltimeatstart 0 initialtimeincrement 0.1 timeperiodofstep 1 minimumtimeincrement 0.01 maximumtimeincrement 0.1
ccx step 1 add load force 1
ccx step 1 add bc displacement 1
ccx step 1 add fieldoutput 1 2
#ccx step 1 add historyoutput 1 2
# mesh
block 1 element type HEX8
volume 1 size auto factor 6
mesh vertex all
mesh volume all
# jobs
#ccx create job name "mesh_refinement"
#ccx run job 1
#!python
#max refinement levels
ref_max = 2
for i in range(ref_max):
cubit.cmd(f"ccx create job name 'mesh_refinement_{i+1}'")
cubit.cmd(f"ccx run job {i+1}")
cubit.cmd(f"ccx wait job {i+1}")
node_ids = ccx.frd_get_node_ids_between_values(i+1,1,"ERROR","STR(%)",50,1000)
node_ids_list = ' '.join([str(id) for id in node_ids])
cubit.cmd(f"refine node {node_ids_list} numsplit 1 bias 1.0 depth 1 smooth")
cubit.cmd(f"volume 1 smooth scheme condition number beta 2 cpu 0.5")
cubit.cmd(f"smooth volume 1")
cubit.cmd(f"ccx create job name 'mesh_refinement_{ref_max+1}'")
cubit.cmd(f"ccx run job {ref_max+1}")
cubit.cmd(f"ccx wait job {ref_max+1}")
print("finished!")