Analisis Statik (Creep)¶
Analisis ini menggunakan data di tutorial/08_creep_cylinder.
Objek Analisis¶
Objek analisis adalah model 1/8 batang bulat yang sama seperti pada Analisis Statik Nonlinear (Hiperelastisitas, Bagian 1) di Bagian 4.3.
| Item | Deskripsi | Catatan | Referensi |
|---|---|---|---|
| Jenis analisis | Analisis statik nonlinear (elastoplastisitas) | !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 | ELASTIC,CREEP | !ELASTIC !CREEP,TYPE=NORTON | |
| Kondisi batas | Pengekangan, perpindahan yang ditentukan | ||
| Solver matriks | CG/SSOR | !SOLVER,METHOD=CG,PRECOND=1 |
Rincian Analisis¶
Analisis perilaku creep dilakukan dengan memberikan perpindahan tarik pada arah aksial ke batang bulat. Data kontrol analisis ditunjukkan di bawah ini.
Data Kontrol Analisis cylinder.cnt¶
# Control File for FISTR
## Analysis Control
!VERSION
3
!SOLUTION, TYPE=NLSTATIC
!WRITE,RESULT
!WRITE,VISUAL
## 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=5, CONVERG=1.0e-5
BOUNDARY, 1
### Material
!MATERIAL, NAME=MAT1
!ELASTIC
206900.0, 0.29
!CREEP, TYPE=NORTON
1.e-10, 5.0, 0.0
### Solver Setting
!SOLVER,METHOD=CG,PRECOND=1,ITERLOG=YES,TIMELOG=YES
10000, 1
1.0e-8, 1.0, 0.0
## Post Control
!VISUAL,method=PSR
!surface_num=1
!surface 1
!output_type=VTK
!END
Prosedur Analisis¶
Jalankan perintah eksekusi FrontISTR fistr1.
(Dijalankan dengan 4 thread)
Hasil Analisis¶
Untuk hasil sublangkah ke-5, diagram deformasi dengan kontur tegangan von Mises dibuat menggunakan REVOCAP_PrePost dan ditunjukkan pada Gambar 4.8.1. Sebagian berkas log hasil analisis juga ditunjukkan di bawah ini sebagai data numerik hasil analisis.
Gambar 4.8.1 Hasil analisis deformasi dan tegangan von 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 -4.1863E-01 91
//U2 0.0000E+00 1 -4.1863E-01 88
//U3 0.0000E+00 1 -7.0000E+00 38
//E11 -6.5748E-02 38 -6.9459E-02 7
//E22 -6.5748E-02 50 -6.9459E-02 13
//E33 2.3884E-01 13 2.2745E-01 50
//E12 5.5591E-04 53 -5.7135E-04 10
//E23 1.0510E-04 72 -2.0805E-03 84
//E31 1.0510E-04 64 -2.0805E-03 95
//S11 1.1232E+02 14 -1.1026E+02 49
//S22 1.1232E+02 6 -1.1026E+02 39
//S33 4.7484E+04 7 4.5271E+04 50
//S12 4.2781E+01 53 -4.3872E+01 10
//S23 7.8190E+00 72 -1.6257E+02 84
//S31 7.8190E+00 64 -1.6257E+02 95
//SMS 4.7448E+04 7 4.5307E+04 50
##### Local Summary @Element :Max/IdMax/Min/IdMin####
//E11 -6.6010E-02 759 -6.9186E-02 354
//E22 -6.6010E-02 768 -6.9186E-02 363
//E33 2.3840E-01 363 2.2788E-01 768
//E12 4.9263E-04 766 -5.0184E-04 360
//E23 -1.6179E-05 753 -1.9977E-03 498
//E31 -1.6179E-05 749 -1.9977E-03 489
//S11 1.0954E+02 363 -1.0744E+02 768
//S22 1.0954E+02 354 -1.0744E+02 759
//S33 4.7416E+04 354 4.5337E+04 759
//S12 3.7890E+01 766 -3.8501E+01 360
//S23 -1.3249E+00 753 -1.5632E+02 498
//S31 -1.3250E+00 749 -1.5632E+02 489
//SMS 4.7346E+04 363 4.5406E+04 759
##### Global Summary @Node :Max/IdMax/Min/IdMin####
//U1 0.0000E+00 1 -4.1863E-01 91
//U2 0.0000E+00 1 -4.1863E-01 88
//U3 0.0000E+00 1 -7.0000E+00 38
//E11 -6.5748E-02 38 -6.9459E-02 7
//E22 -6.5748E-02 50 -6.9459E-02 13
//E33 2.3884E-01 13 2.2745E-01 50
//E12 5.5591E-04 53 -5.7135E-04 10
//E23 1.0510E-04 72 -2.0805E-03 84
//E31 1.0510E-04 64 -2.0805E-03 95
//S11 1.1232E+02 14 -1.1026E+02 49
//S22 1.1232E+02 6 -1.1026E+02 39
//S33 4.7484E+04 7 4.5271E+04 50
//S12 4.2781E+01 53 -4.3872E+01 10
//S23 7.8190E+00 72 -1.6257E+02 84
//S31 7.8190E+00 64 -1.6257E+02 95
//SMS 4.7448E+04 7 4.5307E+04 50
##### Global Summary @Element :Max/IdMax/Min/IdMin####
//E11 -6.6010E-02 759 -6.9186E-02 354
//E22 -6.6010E-02 768 -6.9186E-02 363
//E33 2.3840E-01 363 2.2788E-01 768
//E12 4.9263E-04 766 -5.0184E-04 360
//E23 -1.6179E-05 753 -1.9977E-03 498
//E31 -1.6179E-05 749 -1.9977E-03 489
//S11 1.0954E+02 363 -1.0744E+02 768
//S22 1.0954E+02 354 -1.0744E+02 759
//S33 4.7416E+04 354 4.5337E+04 759
//S12 3.7890E+01 766 -3.8501E+01 360
//S23 -1.3249E+00 753 -1.5632E+02 498
//S31 -1.3250E+00 749 -1.5632E+02 489
//SMS 4.7346E+04 363 4.5406E+04 759