Nelineārā statiskā analīze (elastoplastiskums, 1. daļa)¶
Šīs analīzes veikšanai izmanto tutorial/05_plastic_cylinder datus.
Analīzes objekts¶
Analīzes objekts ir tas pats apaļstieņa 1/8 modelis, kas izmantots sadaļā Nelineārā statiskā analīze (hiperelastība, 1. daļa).
| Vienums | Saturs | Piezīmes | Atsauce |
|---|---|---|---|
| Analīzes veids | Nelineārā statiskā analīze (elastoplastiskums) | !SOLUTION,TYPE=NLSTATIC | |
| Mezglu skaits | 629 | ||
| Elementu skaits | 432 | ||
| Elementa tips | 8 mezglu pirmās kārtas heksaedra elements | !ELEMENT,TYPE=361 | |
| Materiāla nosaukums | MAT1 | !MATERIAL,NAME=MAT1 | |
| Materiāla īpašības | ELASTIC,PLASTIC | !ELASTIC !PLASTIC | |
| Robežnosacījumi | Fiksācija, uzdots pārvietojums | ||
| Matricas risināšanas metode | CG/SSOR | !SOLVER,METHOD=CG,PRECOND=1 |
Analīzes saturs¶
Tiek analizēta apaļstieņa kakliņa veidošanās plastiskās deformācijas dēļ. Plūšanas funkcijai izmanto Mises modeli. Analīzes vadības dati ir parādīti tālāk.
Analīzes vadības dati necking.cnt¶
# Control File for FISTR
## Analysis Control
!VERSION
3
!SOLUTION, TYPE=NLSTATIC
!WRITE,RESULT,FREQUENCY=10
!WRITE,VISUAL,FREQUENCY=10
## Solver Control
### Boundary Condition
!BOUNDARY, GRPID=1
LOADS, 3, 3, -7.0
FIX, 3, 3, 0.0
XSYMM, 1, 1, 0.0
YSYMM, 2, 2, 0.0
### STEP
!STEP, SUBSTEPS=40, CONVERG=1.0e-3
BOUNDARY, 1
### Material
!MATERIAL, NAME=MAT1
!ELASTIC
206900.0, 0.29
!PLASTIC, YIELD=MISES, HARDEN=MULTILINEAR
450.0, 0.0
608.0, 0.05
679.0, 0.1
732.0, 0.2
752.0, 0.3
766.0, 0.4
780.0, 0.5
### Output
!OUTPUT_VIS
NSTRAIN, ON
!OUTPUT_RES
ISTRESS, ON
### Solver Setting
!SOLVER,METHOD=CG,PRECOND=1,ITERLOG=NO,TIMELOG=YES
2000, 1
1.0e-8, 1.0, 0.0
## Post Control
!VISUAL,method=PSR
!surface_num=1
!surface 1
!output_type=VTK
!END
Analīzes procedūra¶
Izpildiet FrontISTR komandu fistr1.
(Izpilde ar 4 pavedieniem)
Analīzes rezultāti¶
- apakšsoļa analīzes rezultātam ar REVOCAP_PrePost izveidota deformētās formas diagramma ar Mises sprieguma kontūrām, kas parādīta 4.5.1. attēlā. Kā analīzes rezultātu skaitliskie dati tālāk parādīta daļa no analīzes rezultātu žurnāla faila.
4.5.1. attēls Deformācijas un Mises sprieguma analīzes rezultāti
Analīzes rezultātu žurnāls 0.log¶
fstr_setup: OK
#### Result step= 0
##### Local Summary @Node :Max/IdMax/Min/IdMin####
//U1 0.0000E+00 1 0.0000E+00 1
//U2 0.0000E+00 1 0.0000E+00 1
//U3 0.0000E+00 1 0.0000E+00 1
//E11 0.0000E+00 1 0.0000E+00 1
//E22 0.0000E+00 1 0.0000E+00 1
//E33 0.0000E+00 1 0.0000E+00 1
//E12 0.0000E+00 1 0.0000E+00 1
//E23 0.0000E+00 1 0.0000E+00 1
//E31 0.0000E+00 1 0.0000E+00 1
//S11 0.0000E+00 1 0.0000E+00 1
//S22 0.0000E+00 1 0.0000E+00 1
//S33 0.0000E+00 1 0.0000E+00 1
//S12 0.0000E+00 1 0.0000E+00 1
//S23 0.0000E+00 1 0.0000E+00 1
//S31 0.0000E+00 1 0.0000E+00 1
//SMS 0.0000E+00 1 0.0000E+00 1
##### Local Summary @Element :Max/IdMax/Min/IdMin####
//E11 0.0000E+00 1 0.0000E+00 1
//E22 0.0000E+00 1 0.0000E+00 1
//E33 0.0000E+00 1 0.0000E+00 1
//E12 0.0000E+00 1 0.0000E+00 1
//E23 0.0000E+00 1 0.0000E+00 1
//E31 0.0000E+00 1 0.0000E+00 1
//S11 0.0000E+00 1 0.0000E+00 1
//S22 0.0000E+00 1 0.0000E+00 1
//S33 0.0000E+00 1 0.0000E+00 1
//S12 0.0000E+00 1 0.0000E+00 1
//S23 0.0000E+00 1 0.0000E+00 1
//S31 0.0000E+00 1 0.0000E+00 1
//SMS 0.0000E+00 1 0.0000E+00 1
##### Global Summary @Node :Max/IdMax/Min/IdMin####
//U1 0.0000E+00 1 0.0000E+00 1
//U2 0.0000E+00 1 0.0000E+00 1
//U3 0.0000E+00 1 0.0000E+00 1
//E11 0.0000E+00 1 0.0000E+00 1
//E22 0.0000E+00 1 0.0000E+00 1
//E33 0.0000E+00 1 0.0000E+00 1
//E12 0.0000E+00 1 0.0000E+00 1
//E23 0.0000E+00 1 0.0000E+00 1
//E31 0.0000E+00 1 0.0000E+00 1
//S11 0.0000E+00 1 0.0000E+00 1
//S22 0.0000E+00 1 0.0000E+00 1
//S33 0.0000E+00 1 0.0000E+00 1
//S12 0.0000E+00 1 0.0000E+00 1
//S23 0.0000E+00 1 0.0000E+00 1
//S31 0.0000E+00 1 0.0000E+00 1
//SMS 0.0000E+00 1 0.0000E+00 1
##### Global Summary @Element :Max/IdMax/Min/IdMin####
//E11 0.0000E+00 1 0.0000E+00 1
//E22 0.0000E+00 1 0.0000E+00 1
//E33 0.0000E+00 1 0.0000E+00 1
//E12 0.0000E+00 1 0.0000E+00 1
//E23 0.0000E+00 1 0.0000E+00 1
//E31 0.0000E+00 1 0.0000E+00 1
//S11 0.0000E+00 1 0.0000E+00 1
//S22 0.0000E+00 1 0.0000E+00 1
//S33 0.0000E+00 1 0.0000E+00 1
//S12 0.0000E+00 1 0.0000E+00 1
//S23 0.0000E+00 1 0.0000E+00 1
//S31 0.0000E+00 1 0.0000E+00 1
//SMS 0.0000E+00 1 0.0000E+00 1
...
#### Result step= 40
##### Local Summary @Node :Max/IdMax/Min/IdMin####
//U1 0.0000E+00 1 -3.4606E+00 7
//U2 0.0000E+00 1 -3.4606E+00 13
//U3 0.0000E+00 1 -7.0000E+00 38
//E11 -3.8922E-02 38 -6.4666E-01 14
//E22 -3.8922E-02 50 -6.4666E-01 6
//E33 1.2914E+00 1 7.8682E-02 44
//E12 2.5910E-01 10 -1.1813E-02 387
//E23 9.7554E-03 91 -1.1753E+00 13
//E31 9.7554E-03 88 -1.1753E+00 7
//S11 2.6632E+02 1 -3.6916E+02 192
//S22 2.6632E+02 1 -3.6916E+02 192
//S33 1.0471E+03 1 -4.1469E+01 191
//S12 7.2338E-01 53 -1.3479E+02 387
//S23 5.9172E+01 191 -2.5727E+02 89
//S31 5.9172E+01 191 -2.5727E+02 90
//SMS 7.9063E+02 13 2.4706E+02 190
##### Local Summary @Element :Max/IdMax/Min/IdMin####
//E11 -3.9027E-02 750 -5.5060E-01 345
//E22 -3.9027E-02 750 -5.5060E-01 345
//E33 1.1045E+00 345 7.8722E-02 750
//E12 1.7067E-01 361 -1.6134E-02 414
//E23 -2.0595E-05 756 -9.6480E-01 363
//E31 -2.0595E-05 748 -9.6480E-01 354
//S11 2.6751E+02 345 -3.9312E+02 399
//S22 2.6751E+02 345 -3.9312E+02 399
//S33 1.0447E+03 345 -4.7069E+01 426
//S12 1.4870E+01 361 -1.4324E+02 442
//S23 4.0405E+01 478 -2.8018E+02 393
//S31 4.0405E+01 486 -2.8018E+02 380
//SMS 7.7935E+02 345 2.3268E+02 480
##### Global Summary @Node :Max/IdMax/Min/IdMin####
//U1 0.0000E+00 1 -3.4606E+00 7
//U2 0.0000E+00 1 -3.4606E+00 13
//U3 0.0000E+00 1 -7.0000E+00 38
//E11 -3.8922E-02 38 -6.4666E-01 14
//E22 -3.8922E-02 50 -6.4666E-01 6
//E33 1.2914E+00 1 7.8682E-02 44
//E12 2.5910E-01 10 -1.1813E-02 387
//E23 9.7554E-03 91 -1.1753E+00 13
//E31 9.7554E-03 88 -1.1753E+00 7
//S11 2.6632E+02 1 -3.6916E+02 192
//S22 2.6632E+02 1 -3.6916E+02 192
//S33 1.0471E+03 1 -4.1469E+01 191
//S12 7.2338E-01 53 -1.3479E+02 387
//S23 5.9172E+01 191 -2.5727E+02 89
//S31 5.9172E+01 191 -2.5727E+02 90
//SMS 7.9063E+02 13 2.4706E+02 190
##### Global Summary @Element :Max/IdMax/Min/IdMin####
//E11 -3.9027E-02 750 -5.5060E-01 345
//E22 -3.9027E-02 750 -5.5060E-01 345
//E33 1.1045E+00 345 7.8722E-02 750
//E12 1.7067E-01 361 -1.6134E-02 414
//E23 -2.0595E-05 756 -9.6480E-01 363
//E31 -2.0595E-05 748 -9.6480E-01 354
//S11 2.6751E+02 345 -3.9312E+02 399
//S22 2.6751E+02 345 -3.9312E+02 399
//S33 1.0447E+03 345 -4.7069E+01 426
//S12 1.4870E+01 361 -1.4324E+02 442
//S23 4.0405E+01 478 -2.8018E+02 393
//S31 4.0405E+01 486 -2.8018E+02 380
//SMS 7.7935E+02 345 2.3268E+02 480