| LOAD
STEP file
with Neggen |
Solve
and Post with Calculix |
|
|
| command |
Screen
|
Comment
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| Run Netgen File / LoadGeometry |
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Load CAD file(STEP, IGES etc) |
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Make a plan to decide Boundary Condtion. | |
| Mesh/MeshOptions/secondOrderElements |
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I want to use C3D10 |
| Generate
Mesh |
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| Mesh/Edit
Boundary Conditions |
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| 0/all/change |
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(reset all surface's BC ) |
| (Select
FIX surface) 1/Change |
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(set 'FIX'
surface's BC to '1' ) (of course , you can use other number) |
| (Select
LOAD surface ) 2/Change |
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(set 'LOAD' surface's BC to '2' ) |
| (Select
one Contact Surface) 10/Change |
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|
| (Select
another Contact Surface) 20/Change |
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| File
/ SaveMesh |
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for example , two.vol |
| >python vol2ci.py
two.vol out.inp |
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run Python script vol2ci.py two.vol is netgen mesh file made by above. out.inp is filename made by script. (any name you like) |
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vol2ci.py will make out.inp
that include : 1) Node info such as *NODE,Nset=Nall 1 , 40 , 0 , 20 2, 50 , 0 , 20 2) ELEMENT info such as *ELEMENT, TYPE=C3D10, ELSET=Eall 1,34,137,143,117,439,484,473,358,752,751 3) ELSET set such as *ELSET,ELSET=VOL1 1, 2, 4) NODE set ( for Boundary Condition) *NSET,NSET=BC1 9, 12, 5) r1 for using in cgx |
|
| >cgx -c out.inp |
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||
| read
r1 |
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r1 is .. plus n BC1 comp BC1 down comp BC1 down plus f BC1 send BC1 abq sur send BC1 abq pres 1.0 Role of r1 is 1) disp node BC ( plus n BC1) 2) make surface set ( comp BC1 down , comp BC1 down) 3) disp surface BC ( plus f BC1) 4) make surface set for contact ( send BC1 abq sur) 5) make surface set for press ( send BC1 abq pres 1.0) |
| prnt
set |
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VOL# is Parts set BC# is BoundaryCondition's No |
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confirm BC's | |
| plot
e VOL1 |
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netgen add Number
to each parts automatically , So it is need to confirm each part's set. |
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found 'VOL1 is upeer parts.' | |
| plot
e VOL2 |
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|
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found 'VOL2 is lower parts.' | |
| quit cgx |
confirm output file BC1.dlo --- press surface set for *DLOAD . BC1.sur --- surface set BC2.dlo BC2.sur BC10.dlo BC10.sur BC20.dlo BC20.sur |
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| prepare solver file(named so.inp) |
*INCLUDE, INPUT=out.inp *include,INPUT=BC10.sur *include,INPUT=BC20.sur *MATERIAL, Name=AL *ELASTIC 71000 , 0.35 *MATERIAL, Name=PLA *ELASTIC 1000 , 0.30 *SOLID SECTION,MATERIAL=PLA , ELSET=VOL1 *SOLID SECTION,MATERIAL=AL , ELSET=VOL2 *TIE,POSITION TOLERANCE=1 SBC10,SBC20 *AMPLITUDE,NAME=A1 0,0.1 *STEP *STATIC *BOUNDARY BC1,1,3,0 *DLOAD,AMPLITUDE=A1 *INCLUDE, INPUT=BC2.dlo *NODE FILE U *EL FILE S *END STEP |
with *TIE command , fix two surface (I don't know TOLERANCE=1 is adequate or not) SBC10 is described in BC10.sur as *SURFACE, NAME=SBC10 |
| >ccx so |
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| >cgx -v so.frd |
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| (datasets/Disp) |
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| (datasets/Entity/ALL) |
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| (Viewing Toggle Add-Displacement) |
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| steps 100 scal d 10 |
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| Netgen -> Calculix(no common
nodes , using *TIE) |
CGX -> Calculix( use common face,
common nodes , not using *TIE) |
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| Model |
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| displacement |
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| stress |
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