Analisis Kontak (1)¶
Analisis ini menggunakan data tutorial/09_contact_hertz.
Objek Analisis¶
Analisis ini merupakan masalah kontak Hertz. Bentuk objek analisis ditunjukkan pada Gambar 4.9.1 dan data mesh ditunjukkan pada Gambar 4.9.2.
| Item | Deskripsi | Catatan | Referensi |
|---|---|---|---|
| Jenis analisis | Analisis statik nonlinear (elastoplastisitas, kontak) | !SOLUTION,TYPE=NLSTATIC !CONTACT | |
| Jumlah node | 408 | ||
| Jumlah elemen | 168 | ||
| Jenis elemen | Elemen heksahedral linier 8-node | !ELEMENT,TYPE=361 | |
| Nama material | MAT1 | !MATERIAL,NAME=MAT1 | |
| Sifat material | ELASTIC | !ELASTIC | |
| Kondisi batas | Pengekangan, perpindahan yang ditentukan | ||
| Solver matriks | CG/SSOR | !SOLVER,METHOD=CG,PRECOND=1 |
Gambar 4.9.1: Bentuk objek analisis
Gambar 4.9.2: Data mesh objek analisis
Rincian Analisis¶
Analisis kontak dilakukan dengan metode pengali Lagrange teraugmentasi, dengan memberikan perpindahan yang ditentukan dalam arah tekan pada permukaan atas model seperempat cakram. Data kontrol analisis ditunjukkan di bawah ini.
Data Kontrol Analisis cgs3.cnt¶
# Control File for FISTR
## Analysis Control
!VERSION
3
!SOLUTION, TYPE=NLSTATIC
!WRITE,RESULT
!WRITE,VISUAL
## Solver Control
### Boundary Condition
!BOUNDARY, GRPID=1
ALL, 3, 3, 0.0
BOTTOM, 2, 2, 0.0
CENTER, 1, 1, 0.0
UPPER, 2, 2, -0.306
!CONTACT_ALGO, TYPE=ALAGRANGE
!CONTACT, GRPID=1
CP1, 0.0
### STEP
!STEP, SUBSTEPS=5, CONVERG=1.0e-5
BOUNDARY, 1
CONTACT, 1
### Material
!MATERIAL, NAME=MAT1
!ELASTIC
1100.0, 0.0
### Solver Setting
!SOLVER,METHOD=CG,PRECOND=1,ITERLOG=YES,TIMELOG=YES
1000, 1
1.0e-10, 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 analisis pada sublangkah ke-5, diagram deformasi yang dilengkapi kontur perpindahan arah y dibuat dengan REVOCAP_PrePost dan ditunjukkan pada Gambar 4.9.3. Sebagai data numerik hasil analisis, sebagian file log hasil analisis ditunjukkan di bawah ini.
Gambar 4.9.3: Hasil analisis deformasi dan perpindahan arah y
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 1.3079E-02 31 -4.1442E-02 54
//U2 4.9597E-03 1008 -3.0604E-01 69
//U3 0.0000E+00 1 0.0000E+00 1
//E11 7.1171E-03 1049 -4.7627E-02 1
//E22 2.0644E-03 1012 -5.3428E-02 50
//E33 9.3301E-03 50 -4.0103E-03 54
//E12 4.3231E-02 1000 -2.7666E-02 54
//E23 1.3028E-12 1046 -1.2515E-12 2
//E31 3.5660E-13 48 -2.1028E-12 51
//S11 7.9455E+00 1049 -4.9987E+01 1
//S22 2.2819E+00 1012 -5.3282E+01 50
//S33 1.1359E+01 50 -4.4937E+00 54
//S12 2.0802E+01 1000 -1.4668E+01 54
//S23 6.7682E-10 1046 -6.3666E-10 2
//S31 2.0235E-10 48 -1.1497E-09 51
//SMS 6.0944E+01 1000 1.0198E-01 69
##### Local Summary @Element :Max/IdMax/Min/IdMin####
//E11 4.6311E-03 1024 -3.5443E-02 8
//E22 1.7091E-03 1031 -5.4262E-02 8
//E33 1.5903E-04 7 -1.6631E-05 101
//E12 1.8590E-02 1009 -2.6073E-02 14
//E23 1.5204E-13 1000 -4.1521E-13 16
//E31 1.3902E-13 5 -8.2391E-13 7
//S11 5.2516E+00 1024 -3.8099E+01 8
//S22 1.8872E+00 1031 -5.5262E+01 8
//S33 2.2824E-01 7 -1.8263E-02 101
//S12 9.8516E+00 1009 -1.3352E+01 14
//S23 7.8767E-11 1000 -2.1075E-10 16
//S31 7.7553E-11 5 -4.4780E-10 7
//SMS 4.9470E+01 8 2.4786E-01 1007
##### Global Summary @Node :Max/IdMax/Min/IdMin####
//U1 1.3079E-02 31 -4.1442E-02 54
//U2 4.9597E-03 1008 -3.0604E-01 69
//U3 0.0000E+00 1 0.0000E+00 1
//E11 7.1171E-03 1049 -4.7627E-02 1
//E22 2.0644E-03 1012 -5.3428E-02 50
//E33 9.3301E-03 50 -4.0103E-03 54
//E12 4.3231E-02 1000 -2.7666E-02 54
//E23 1.3028E-12 1046 -1.2515E-12 2
//E31 3.5660E-13 48 -2.1028E-12 51
//S11 7.9455E+00 1049 -4.9987E+01 1
//S22 2.2819E+00 1012 -5.3282E+01 50
//S33 1.1359E+01 50 -4.4937E+00 54
//S12 2.0802E+01 1000 -1.4668E+01 54
//S23 6.7682E-10 1046 -6.3666E-10 2
//S31 2.0235E-10 48 -1.1497E-09 51
//SMS 6.0944E+01 1000 1.0198E-01 69
##### Global Summary @Element :Max/IdMax/Min/IdMin####
//E11 4.6311E-03 1024 -3.5443E-02 8
//E22 1.7091E-03 1031 -5.4262E-02 8
//E33 1.5903E-04 7 -1.6631E-05 101
//E12 1.8590E-02 1009 -2.6073E-02 14
//E23 1.5204E-13 1000 -4.1521E-13 16
//E31 1.3902E-13 5 -8.2391E-13 7
//S11 5.2516E+00 1024 -3.8099E+01 8
//S22 1.8872E+00 1031 -5.5262E+01 8
//S33 2.2824E-01 7 -1.8263E-02 101
//S12 9.8516E+00 1009 -1.3352E+01 14
//S23 7.8767E-11 1000 -2.1075E-10 16
//S31 7.7553E-11 5 -4.4780E-10 7
//SMS 4.9470E+01 8 2.4786E-01 1007