Analisis Statik Nonlinear (Hiperelastisitas, Bagian 2)¶
Analisis ini menggunakan data dari tutorial/04_hyperelastic_spring.
Target analisis¶
Pegas menjadi objek analisis; geometrinya ditunjukkan pada Gambar 4.4.1 dan data mesh ditunjukkan pada Gambar 4.4.2.
| Item | Deskripsi | Catatan | Referensi |
|---|---|---|---|
| Jenis analisis | Analisis statik nonlinear (hiperelastisitas) | !SOLUTION,TYPE=NLSTATIC | |
| Jumlah node | 78,771 | ||
| Jumlah elemen | 46,454 | ||
| Jenis elemen | Elemen tetrahedron kuadratik sepuluh node | !ELEMENT,TYPE=342 | |
| Nama material | MAT1 | !MATERIAL,NAME=MAT1 | |
| Properti material | HYPERELASTIC | !HYPERELASTIC,TYPE=ARRUDA-BOYCE | |
| Kondisi batas | Pengekangan / perpindahan yang ditentukan | ||
| Penyelesaian matriks | CG/AMG | !SOLVER,METHOD=CG,PRECOND=5 |
Gambar 4.4.1: Bentuk pegas
Gambar 4.4.2: Data mesh pegas
Isi analisis¶
Analisis tegangan dilakukan dengan membatasi perpindahan pada permukaan yang dikekang seperti ditunjukkan pada Gambar 4.4.1 dan menerapkan perpindahan yang ditentukan pada permukaan perpindahan yang ditentukan. Model Arruda-Boyce digunakan untuk hukum konstitutif material hiperelastik. Data kontrol analisis ditunjukkan di bawah.
Data kontrol analisis spring.cnt¶
# Control File for FISTR
## Analysis Control
!VERSION
3
!SOLUTION, TYPE=NLSTATIC
!WRITE,RESULT
!WRITE,VISUAL
## Solver Control
### Boundary Condition
!BOUNDARY, GRPID=1
LOADS, 2, 2, -5.0
FIX, 1, 3, 0.0
### STEP
!STEP, SUBSTEPS=1, CONVERG=1.0e-5
BOUNDARY, 1
### Material
!MATERIAL, NAME=MAT1
!HYPERELASTIC, TYPE=ARRUDA-BOYCE
0.71, 1.7029, 0.1408
### Solver Setting
!SOLVER,METHOD=CG,PRECOND=5,ITERLOG=NO,TIMELOG=YES
10000, 1
1.0e-5, 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.
(Berjalan dengan 4 thread.)
Hasil analisis¶
Diagram deformasi dengan kontur perpindahan dibuat menggunakan REVOCAP_PrePost dan ditunjukkan pada Gambar 4.4.3. Sebagian file log ditampilkan di bawah sebagai data numerik hasil analisis.
Gambar 4.4.3: Hasil analisis deformasi dan perpindahan
File log 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= 1
##### Local Summary @Node :Max/IdMax/Min/IdMin####
//U1 2.6070E-01 42179 -2.4651E-01 44163
//U2 2.0567E-02 14512 -5.0036E+00 44753
//U3 6.6559E-02 15443 -6.6862E-01 44664
//E11 4.1026E-03 1015 -4.5809E-03 3429
//E22 2.3030E-03 42626 -1.5152E-03 44761
//E33 4.1949E-03 23553 -5.0169E-03 27938
//E12 1.3348E-02 55149 -1.3381E-02 56829
//E23 2.7881E-02 48353 -1.9534E-02 48322
//E31 1.0861E-02 47938 -8.8803E-03 9493
//S11 8.4247E-03 8264 -9.1017E-03 8501
//S22 1.0769E-02 56772 -6.3921E-03 56787
//S33 1.3881E-02 56764 -1.2778E-02 42632
//S12 1.2396E-02 55149 -1.2434E-02 56829
//S23 2.5880E-02 48353 -1.8138E-02 48322
//S31 1.0081E-02 47938 -8.2435E-03 9493
//SMS 4.9638E-02 48353 2.8482E-04 66578
##### Local Summary @Element :Max/IdMax/Min/IdMin####
//E11 3.9156E-03 34074 -4.3403E-03 16932
//E22 1.8391E-03 23282 -1.2721E-03 56220
//E33 3.9490E-03 45925 -4.4530E-03 34145
//E12 1.2578E-02 45680 -1.1729E-02 19492
//E23 2.0534E-02 40739 -1.3512E-02 24172
//E31 9.4162E-03 32786 -7.6149E-03 44971
//S11 7.7882E-03 25880 -8.2932E-03 45925
//S22 6.8884E-03 23275 -6.1373E-03 49821
//S33 9.9242E-03 59974 -9.5475E-03 31626
//S12 1.1679E-02 45680 -1.0893E-02 19492
//S23 1.9071E-02 40739 -1.2534E-02 24172
//S31 8.7376E-03 32786 -7.0660E-03 44971
//SMS 3.5586E-02 40739 4.1161E-04 40537
##### Global Summary @Node :Max/IdMax/Min/IdMin####
//U1 2.6070E-01 42179 -2.4651E-01 44163
//U2 2.0567E-02 14512 -5.0036E+00 44753
//U3 6.6559E-02 15443 -6.6862E-01 44664
//E11 4.1026E-03 1015 -4.5809E-03 3429
//E22 2.3030E-03 42626 -1.5152E-03 44761
//E33 4.1949E-03 23553 -5.0169E-03 27938
//E12 1.3348E-02 55149 -1.3381E-02 56829
//E23 2.7881E-02 48353 -1.9534E-02 48322
//E31 1.0861E-02 47938 -8.8803E-03 9493
//S11 8.4247E-03 8264 -9.1017E-03 8501
//S22 1.0769E-02 56772 -6.3921E-03 56787
//S33 1.3881E-02 56764 -1.2778E-02 42632
//S12 1.2396E-02 55149 -1.2434E-02 56829
//S23 2.5880E-02 48353 -1.8138E-02 48322
//S31 1.0081E-02 47938 -8.2435E-03 9493
//SMS 4.9638E-02 48353 2.8482E-04 66578
##### Global Summary @Element :Max/IdMax/Min/IdMin####
//E11 3.9156E-03 34074 -4.3403E-03 16932
//E22 1.8391E-03 23282 -1.2721E-03 56220
//E33 3.9490E-03 45925 -4.4530E-03 34145
//E12 1.2578E-02 45680 -1.1729E-02 19492
//E23 2.0534E-02 40739 -1.3512E-02 24172
//E31 9.4162E-03 32786 -7.6149E-03 44971
//S11 7.7882E-03 25880 -8.2932E-03 45925
//S22 6.8884E-03 23275 -6.1373E-03 49821
//S33 9.9242E-03 59974 -9.5475E-03 31626
//S12 1.1679E-02 45680 -1.0893E-02 19492
//S23 1.9071E-02 40739 -1.2534E-02 24172
//S31 8.7376E-03 32786 -7.0660E-03 44971
//SMS 3.5586E-02 40739 4.1161E-04 40537