Analisis Statik Nonlinear (Hiperelastisitas 1)¶
Analisis ini menggunakan data tutorial/03_hyperelastic_cylinder.
Objek Analisis¶
Objek analisis adalah model 1/8 batang bulat; geometri ditunjukkan pada Gambar 4.3.1 dan data mesh pada Gambar 4.3.2.
| Item | Deskripsi | Catatan | Referensi |
|---|---|---|---|
| Jenis analisis | Analisis statik nonlinear (hiperelastisitas) | !SOLUTION,TYPE=NLSTATIC | |
| Jumlah node | 629 | ||
| Jumlah elemen | 432 | ||
| Jenis elemen | Elemen heksahedral linier 8-node | !ELEMENT,TYPE=361 | |
| Nama material | MAT1 | !MATERIAL,NAME=MAT1 | |
| Sifat material | HYPERELASTIC | !HYPERELASTIC,TYPE=MOONEY-RIVLIN | |
| Kondisi batas | Pengekangan, perpindahan yang ditentukan | ||
| Solver matriks | CG/SSOR | !SOLVER,METHOD=CG,PRECOND=1 |
Gambar 4.3.1 Bentuk batang bulat (model 1/8)
Gambar 4.3.2 Data mesh batang bulat (model 1/8)
Rincian Analisis¶
Analisis tegangan dilakukan dengan memberikan perpindahan tarik aksial pada batang bulat. Model Mooney-Rivlin digunakan sebagai persamaan konstitutif material hiperelastik. Data kontrol analisis ditunjukkan di bawah ini.
Data Kontrol Analisis cylinder.cnt¶
# File Kontrol untuk FISTR
## Kontrol Analisis
!VERSION
3
!SOLUTION, TYPE=NLSTATIC
!WRITE,RESULT
!WRITE,VISUAL
## Kontrol Solver
### Kondisi Batas
!BOUNDARY, GRPID=1
LOADS, 3, 3, -7.0
FIX, 3, 3, 0.0
XSYMM, 1, 1, 0.0
YSYMM, 2, 2, 0.0
### Langkah
!STEP, SUBSTEPS=5, CONVERG=1.0e-5
BOUNDARY, 1
### Material
!MATERIAL, NAME=MAT1
!HYPERELASTIC, TYPE=MOONEY-RIVLIN
0.1486, 0.4849, 0.0789
### Pengaturan Solver
!SOLVER,METHOD=CG,PRECOND=1,ITERLOG=YES,TIMELOG=YES
10000, 1
1.0e-8, 1.0, 0.0
## Kontrol Pascaproses
!VISUAL,method=PSR
!surface_num=1
!surface 1
!output_type=VTK
!END
Hasil Analisis¶
Untuk hasil analisis pada sublangkah ke-5, diagram deformasi dengan kontur tegangan Mises dibuat menggunakan REVOCAP_PrePost dan ditunjukkan pada Gambar 4.3.3. Sebagai data numerik hasil analisis, sebagian file log hasil analisis ditunjukkan di bawah ini.
Gambar 4.3.3 Hasil analisis deformasi dan tegangan Mises
Log Hasil Analisis 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= 5
##### Local Summary @Node :Max/IdMax/Min/IdMin####
//U1 0.0000E+00 1 -6.7543E-01 90
//U2 0.0000E+00 1 -6.7543E-01 89
//U3 0.0000E+00 1 -7.0000E+00 38
//E11 -1.0781E-01 38 -1.1448E-01 7
//E22 -1.0781E-01 50 -1.1448E-01 13
//E33 2.3916E-01 7 2.2715E-01 50
//E12 8.9609E-04 53 -9.2501E-04 10
//E23 1.0074E-07 38 -2.6232E-03 86
//E31 1.0074E-07 50 -2.6232E-03 93
//S11 2.7292E-03 14 -2.6468E-03 49
//S22 2.7292E-03 6 -2.6468E-03 39
//S33 8.5422E-01 7 8.1021E-01 50
//S12 1.2861E-03 53 -1.3373E-03 10
//S23 1.4289E-07 38 -3.1695E-03 86
//S31 1.4289E-07 50 -3.1695E-03 93
//SMS 8.5307E-01 7 8.1134E-01 50
##### Local Summary @Element :Max/IdMax/Min/IdMin####
//E11 -1.0817E-01 759 -1.1410E-01 354
//E22 -1.0817E-01 768 -1.1410E-01 363
//E33 2.3863E-01 354 2.2766E-01 759
//E12 7.4078E-04 766 -7.5734E-04 360
//E23 -2.5376E-05 753 -2.4790E-03 471
//E31 -2.5376E-05 749 -2.4790E-03 462
//S11 2.8994E-03 363 -2.8080E-03 768
//S22 2.8994E-03 354 -2.8080E-03 759
//S33 8.5295E-01 354 8.1143E-01 759
//S12 1.0634E-03 766 -1.0947E-03 360
//S23 -3.0682E-05 753 -2.9954E-03 471
//S31 -3.0682E-05 749 -2.9954E-03 462
//SMS 8.5118E-01 354 8.1315E-01 759
##### Global Summary @Node :Max/IdMax/Min/IdMin####
//U1 0.0000E+00 1 -6.7543E-01 90
//U2 0.0000E+00 1 -6.7543E-01 89
//U3 0.0000E+00 1 -7.0000E+00 38
//E11 -1.0781E-01 38 -1.1448E-01 7
//E22 -1.0781E-01 50 -1.1448E-01 13
//E33 2.3916E-01 7 2.2715E-01 50
//E12 8.9609E-04 53 -9.2501E-04 10
//E23 1.0074E-07 38 -2.6232E-03 86
//E31 1.0074E-07 50 -2.6232E-03 93
//S11 2.7292E-03 14 -2.6468E-03 49
//S22 2.7292E-03 6 -2.6468E-03 39
//S33 8.5422E-01 7 8.1021E-01 50
//S12 1.2861E-03 53 -1.3373E-03 10
//S23 1.4289E-07 38 -3.1695E-03 86
//S31 1.4289E-07 50 -3.1695E-03 93
//SMS 8.5307E-01 7 8.1134E-01 50
##### Global Summary @Element :Max/IdMax/Min/IdMin####
//E11 -1.0817E-01 759 -1.1410E-01 354
//E22 -1.0817E-01 768 -1.1410E-01 363
//E33 2.3863E-01 354 2.2766E-01 759
//E12 7.4078E-04 766 -7.5734E-04 360
//E23 -2.5376E-05 753 -2.4790E-03 471
//E31 -2.5376E-05 749 -2.4790E-03 462
//S11 2.8994E-03 363 -2.8080E-03 768
//S22 2.8994E-03 354 -2.8080E-03 759
//S33 8.5295E-01 354 8.1143E-01 759
//S12 1.0634E-03 766 -1.0947E-03 360
//S23 -3.0682E-05 753 -2.9954E-03 471
//S31 -3.0682E-05 749 -2.9954E-03 462
//SMS 8.5118E-01 354 8.1315E-01 759