Analisis Kontak (Bagian 2)¶
Analisis ini menggunakan data dalam tutorial/10_contact_2tubes.
Model Analisis¶
Ini adalah masalah indentasi silindris. Gambar 4.10.1 menunjukkan geometri yang dianalisis, dan Gambar 4.10.2 menunjukkan data mesh.
| Item | Deskripsi | Catatan | Referensi |
|---|---|---|---|
| Tipe analisis | Analisis statik nonlinear (elastisitas, kontak) | !SOLUTION,TYPE=NLSTATIC !CONTACT | |
| Jumlah titik kontak | 4,000 | ||
| Jumlah elemen | 2,888 | ||
| Tipe elemen | Elemen heksahedral orde pertama 8-node | !ELEMENT,TYPE=361 | |
| Nama material | M1 | !MATERIAL,NAME=M1 | |
| Properti material | ELASTIC | !ELASTIC | |
| Kondisi batas | Kekangan, perpindahan yang ditentukan | ||
| Solver linear | Metode langsung | !SOLVER,METHOD=MUMPS |
Gambar 4.10.1 Geometri model analisis
Gambar 4.10.2 Data mesh model analisis
Deskripsi Analisis¶
Analisis kontak dilakukan menggunakan metode pengali Lagrange dengan menerapkan perpindahan yang ditentukan pada arah indentasi ke permukaan perpindahan-tertentu yang ditunjukkan pada Gambar 4.10.1. Data kontrol analisis ditunjukkan di bawah ini.
Data Kontrol Analisis 2tubes.cnt¶
# Control File for FISTR
## Analysis Control
!VERSION
3
!SOLUTION, TYPE=NLSTATIC
!WRITE,RESULT
!WRITE,VISUAL
## Solver Control
### Boundary Condition
!BOUNDARY, GRPID=1
X0, 1, 3, 0.0
Y0, 2, 2, 0.0
Z0, 3, 3, 0.0
!BOUNDARY, GRPID=2
X1, 1, 1, 0.0
!BOUNDARY, GRPID=3
X1, 1, 1, -1.0
!CONTACT_ALGO, TYPE=SLAGRANGE
!CONTACT, GRPID=1, INTERACTION=FSLID, NPENALTY=1.0e+2
CP1, 0.0, 1.0e+5
### STEP
!STEP, SUBSTEPS=4, CONVERG=1.0e-5
BOUNDARY, 1
BOUNDARY, 3
CONTACT, 1
### Material
!MATERIAL, NAME=M1
!ELASTIC
2.1e+5, 0.3
### Solver Setting
!SOLVER,METHOD=MUMPS
## Post Control
!VISUAL,method=PSR
!surface_num=1
!surface 1
!output_type=VTK
!END
Prosedur Analisis¶
Jalankan perintah executable FrontISTR fistr1.
(Dijalankan dengan 4 thread)
Hasil Analisis¶
Untuk substep keempat, plot bentuk terdeformasi dengan kontur tegangan von Mises dibuat menggunakan REVOCAP_PrePost dan ditunjukkan pada Gambar 4.10.3. Sebagai hasil analisis numerik, cuplikan dari file log hasil analisis ditunjukkan di bawah ini.
Gambar 4.10.3 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= 4
##### Local Summary @Node :Max/IdMax/Min/IdMin####
//U1 8.7136E-04 32 -1.0021E+00 2006
//U2 8.7633E-03 104 -7.0546E-03 2006
//U3 8.7634E-03 4 -7.0546E-03 1901
//E11 7.5985E-04 1901 -4.1250E-04 105
//E22 9.8385E-04 2 -9.3128E-04 2058
//E33 9.8386E-04 102 -9.3120E-04 3843
//E12 5.3544E-04 133 -2.8361E-04 278
//E23 1.2509E-03 1901 -1.4195E-03 4
//E31 5.3554E-04 33 -2.8366E-04 1678
//S11 7.7172E+01 103 -8.9880E+01 101
//S22 2.0158E+02 2 -2.2918E+02 1905
//S33 2.0159E+02 102 -2.2920E+02 2010
//S12 4.3210E+01 133 -2.2913E+01 278
//S23 1.0057E+02 1901 -1.1446E+02 4
//S31 4.3219E+01 33 -2.2918E+01 1678
//SMS 3.0051E+02 1901 3.1670E+00 2454
##### Local Summary @Element :Max/IdMax/Min/IdMin####
//E11 4.3715E-04 2809 -3.1965E-04 1293
//E22 8.8407E-04 73 -7.9864E-04 1369
//E33 8.8408E-04 1365 -7.9867E-04 2809
//E12 5.3226E-04 1324 -1.9554E-04 188
//E23 1.0836E-03 2149 -1.0974E-03 684
//E31 5.3223E-04 32 -1.9559E-04 1176
//S11 6.6688E+01 1296 -7.9313E+01 1293
//S22 1.8533E+02 73 -2.1547E+02 1369
//S33 1.8533E+02 1365 -2.1548E+02 2809
//S12 4.2951E+01 1324 -1.5800E+01 188
//S23 8.7338E+01 2149 -8.8751E+01 684
//S31 4.2949E+01 32 -1.5804E+01 1176
//SMS 1.9064E+02 1369 3.2782E+00 2126
##### Global Summary @Node :Max/IdMax/Min/IdMin####
//U1 8.7136E-04 32 -1.0021E+00 2006
//U2 8.7633E-03 104 -7.0546E-03 2006
//U3 8.7634E-03 4 -7.0546E-03 1901
//E11 7.5985E-04 1901 -4.1250E-04 105
//E22 9.8385E-04 2 -9.3128E-04 2058
//E33 9.8386E-04 102 -9.3120E-04 3843
//E12 5.3544E-04 133 -2.8361E-04 278
//E23 1.2509E-03 1901 -1.4195E-03 4
//E31 5.3554E-04 33 -2.8366E-04 1678
//S11 7.7172E+01 103 -8.9880E+01 101
//S22 2.0158E+02 2 -2.2918E+02 1905
//S33 2.0159E+02 102 -2.2920E+02 2010
//S12 4.3210E+01 133 -2.2913E+01 278
//S23 1.0057E+02 1901 -1.1446E+02 4
//S31 4.3219E+01 33 -2.2918E+01 1678
//SMS 3.0051E+02 1901 3.1670E+00 2454
##### Global Summary @Element :Max/IdMax/Min/IdMin####
//E11 4.3715E-04 2809 -3.1965E-04 1293
//E22 8.8407E-04 73 -7.9864E-04 1369
//E33 8.8408E-04 1365 -7.9867E-04 2809
//E12 5.3226E-04 1324 -1.9554E-04 188
//E23 1.0836E-03 2149 -1.0974E-03 684
//E31 5.3223E-04 32 -1.9559E-04 1176
//S11 6.6688E+01 1296 -7.9313E+01 1293
//S22 1.8533E+02 73 -2.1547E+02 1369
//S33 1.8533E+02 1365 -2.1548E+02 2809
//S12 4.2951E+01 1324 -1.5800E+01 188
//S23 8.7338E+01 2149 -8.8751E+01 684
//S31 4.2949E+01 32 -1.5804E+01 1176
//SMS 1.9064E+02 1369 3.2782E+00 2126