Niet-lineaire dynamische contactanalyse¶
Deze analyse gebruikt de gegevens in tutorial/14_dynamic_plate_contact.
Analysemodel¶
De analyse modelleert de impact van een vierkante staaf die op een vloer valt. Figuur 4.14.1 toont de geometrie en figuur 4.14.2 toont de meshgegevens.
| Item | Beschrijving | Opmerkingen | Referentie |
|---|---|---|---|
| Analysetype | Niet-lineaire dynamische contactanalyse | !SOLUTION,TYPE=DYNAMIC !DYNAMIC,TYPE=NONLINEAR !CONTACT | |
| Aantal knopen | 10,712 | ||
| Aantal elementen | 8,232 | ||
| Elementtype | 8-knoops hexaëderelement | !ELEMENT,TYPE=361 | |
| Materiaalnamen | M1, M2 | !MATERIAL,NAME=M1 !MATERIAL,NAME=M2 | |
| Materiaaleigenschappen | ELASTIC, PLASTIC | !ELASTIC !PLASTIC | |
| Randvoorwaarden | Beperkingen, beginsnelheid | !VELOCITY,TYPE=INITIAL | |
| Lineaire oplosser | Directe methode | !SOLVER,METHOD=MUMPS |
Fig. 4.14.1 Geometrie van de vloer en de vierkante staaf
Fig. 4.14.2 Meshgegevens van de vloer en de vierkante staaf
Beschrijving van de analyse¶
Aan de vierkante staaf wordt een beginsnelheid van 4427 mm/s toegekend en er wordt een dynamische contactanalyse uitgevoerd. De analysebesturingsgegevens worden hieronder weergegeven.
Analysebesturingsgegevens plateToGround.cnt¶
!!
!! Control File for FISTR
!!
!VERSION
3
!WRITE,LOG,FREQUENCY=10
!WRITE,RESULT,FREQUENCY=10
!SOLUTION, TYPE=DYNAMIC
!DYNAMIC, TYPE=NONLINEAR
1 , 1
0.0, 1.0, 200, 1.0000e-8
0.65, 0.330625
1, 1, 0.0, 0.0
20, 2621, 1
1, 1, 1, 1, 1, 1
!BOUNDARY, GRPID = 1
bottom, 1, 3, 0.0
!VELOCITY, TYPE = INITIAL
plate, 3, 3, -4427.0
!CONTACT_ALGO, TYPE=SLAGRANGE
!CONTACT, GRPID=1, INTERACTION=FSLID
CP1, 0.0, 1.0e+5
!STEP, CONVERG=1.0e-5, ITMAX=100
BOUNDARY, 1
CONTACT, 1
!MATERIAL, NAME = M1
!ELASTIC
2.00000e+5, 0.3
!PLASTIC
1.0e+8, 0.0
!MATERIAL, NAME = M2
!ELASTIC
1.16992e+5, 0.3
!PLASTIC
70.0, 0.0
!SOLVER,METHOD=MUMPS
!END
Analyseresultaten¶
Figuur 4.14.3 toont een contourplot van de von Mises-spanning tijdens de impact. Als numeriek analyseresultaat wordt hieronder een uittreksel weergegeven uit het energie-uitvoerbestand (dyna_energy.txt) voor de bewakingsknoop.
Fig. 4.14.3 Von Mises-spanning tijdens impact
Energie van de bewakingsknoop dyna_energy.txt¶
time step time kinetic energy strain energy total energy
0 0.0000E+000 9.7816E-003 0.0000E+000 9.7816E-003
1 1.0000E-008 9.7756E-003 4.9470E-006 9.7806E-003
2 2.0000E-008 9.7654E-003 1.4636E-005 9.7800E-003
3 3.0000E-008 9.7566E-003 2.2609E-005 9.7792E-003
4 4.0000E-008 9.7505E-003 3.7965E-005 9.7884E-003
5 5.0000E-008 9.7425E-003 6.4932E-005 9.8074E-003
6 6.0000E-008 9.7214E-003 8.4571E-005 9.8060E-003
7 7.0000E-008 9.7139E-003 9.0613E-005 9.8045E-003
8 8.0000E-008 9.7184E-003 1.0958E-004 9.8280E-003
9 9.0000E-008 9.7175E-003 1.5717E-004 9.8747E-003
10 1.0000E-007 9.6909E-003 1.7998E-004 9.8709E-003
11 1.1000E-007 9.6917E-003 1.9733E-004 9.8890E-003
12 1.2000E-007 9.7137E-003 2.2403E-004 9.9377E-003
13 1.3000E-007 9.6813E-003 2.4397E-004 9.9253E-003
Logboek met analyseresultaten 0.log¶
fstr_setup: OK
#### Result step= 10
##### Local Summary @Node :Max/IdMax/Min/IdMin####
//U1 7.6111E-05 2780 -1.3733E-04 2807
//U2 3.5826E-04 2645 -3.5826E-04 2597
//U3 7.3650E-07 2599 -4.8426E-04 2785
//V1 1.0743E+03 2780 -2.1388E+03 2785
//V2 4.1975E+03 2645 -4.1975E+03 2597
//V3 3.4753E+02 2632 -5.2027E+03 2785
//A1 1.8419E+10 2797 -1.7512E+10 2790
//A2 1.6413E+10 2645 -1.6413E+10 2597
//A3 2.6159E+11 2632 -7.1824E+11 2598
//E11 5.5643E-03 2798 -3.1738E-03 2785
//E22 9.6885E-03 2598 -1.4502E-04 2780
//E33 2.6801E-03 2785 -1.5067E-02 2598
//E12 5.7146E-03 2778 -5.7146E-03 2782
//E23 8.8189E-03 2597 -8.8189E-03 2645
//E31 9.6709E-03 2785 -8.9273E-03 2780
//S11 2.3553E+01 2890 -6.9294E+01 2621
//S22 3.9504E+01 2797 -6.4266E+01 2621
//S33 1.5165E+01 2827 -1.3217E+02 2621
//S12 1.9751E+01 2778 -1.9751E+01 2782
//S23 1.9616E+01 2838 -1.9616E+01 2842
//S31 3.7803E+01 2868 -3.4973E+01 2867
//SMS 7.7288E+01 2840 1.4896E-13 10709
##### Local Summary @Element :Max/IdMax/Min/IdMin####
//E11 3.3315E-03 2188 -3.5688E-03 2198
//E22 4.2263E-03 2185 -1.6011E-05 1817
//E33 2.8970E-03 2198 -7.3958E-03 2185
//E12 4.8924E-03 2186 -4.8924E-03 2192
//E23 3.4853E-03 2205 -3.4853E-03 2208
//E31 1.1270E-02 2187 -9.6668E-03 2188
//S11 2.6052E+01 2241 -7.3461E+01 2189
//S22 5.6465E+01 2194 -7.8034E+01 2189
//S33 7.5395E+01 2194 -1.1968E+02 2189
//S12 1.3438E+01 2186 -1.3438E+01 2192
//S23 1.4576E+01 2205 -1.4576E+01 2208
//S31 3.5356E+01 2217 -3.3931E+01 2220
//SMS 6.8689E+01 2233 1.4239E-13 8230
##### Global Summary @Node :Max/IdMax/Min/IdMin####
//U1 7.6111E-05 2780 -1.3733E-04 2807
//U2 3.5826E-04 2645 -3.5826E-04 2597
//U3 7.3650E-07 2599 -4.8426E-04 2785
//V1 1.0743E+03 2780 -2.1388E+03 2785
//V2 4.1975E+03 2645 -4.1975E+03 2597
//V3 3.4753E+02 2632 -5.2027E+03 2785
//A1 1.8419E+10 2797 -1.7512E+10 2790
//A2 1.6413E+10 2645 -1.6413E+10 2597
//A3 2.6159E+11 2632 -7.1824E+11 2598
//E11 5.5643E-03 2798 -3.1738E-03 2785
//E22 9.6885E-03 2598 -1.4502E-04 2780
//E33 2.6801E-03 2785 -1.5067E-02 2598
//E12 5.7146E-03 2778 -5.7146E-03 2782
//E23 8.8189E-03 2597 -8.8189E-03 2645
//E31 9.6709E-03 2785 -8.9273E-03 2780
//S11 2.3553E+01 2890 -6.9294E+01 2621
//S22 3.9504E+01 2797 -6.4266E+01 2621
//S33 1.5165E+01 2827 -1.3217E+02 2621
//S12 1.9751E+01 2778 -1.9751E+01 2782
//S23 1.9616E+01 2838 -1.9616E+01 2842
//S31 3.7803E+01 2868 -3.4973E+01 2867
//SMS 7.7288E+01 2840 1.4896E-13 10709
##### Global Summary @Element :Max/IdMax/Min/IdMin####
//E11 3.3315E-03 2188 -3.5688E-03 2198
//E22 4.2263E-03 2185 -1.6011E-05 1817
//E33 2.8970E-03 2198 -7.3958E-03 2185
//E12 4.8924E-03 2186 -4.8924E-03 2192
//E23 3.4853E-03 2205 -3.4853E-03 2208
//E31 1.1270E-02 2187 -9.6668E-03 2188
//S11 2.6052E+01 2241 -7.3461E+01 2189
//S22 5.6465E+01 2194 -7.8034E+01 2189
//S33 7.5395E+01 2194 -1.1968E+02 2189
//S12 1.3438E+01 2186 -1.3438E+01 2192
//S23 1.4576E+01 2205 -1.4576E+01 2208
//S31 3.5356E+01 2217 -3.3931E+01 2220
//SMS 6.8689E+01 2233 1.4239E-13 8230
...
#### Result step= 200
##### Local Summary @Node :Max/IdMax/Min/IdMin####
//U1 1.0996E-03 2818 -2.9048E-03 2803
//U2 8.2012E-03 2645 -8.2012E-03 2597
//U3 1.1800E-06 2465 -8.5895E-03 5373
//V1 8.9566E+02 10712 -2.1228E+03 2831
//V2 3.4246E+03 2645 -3.4246E+03 2597
//V3 3.2884E+02 2794 -4.0108E+03 5377
//A1 2.1058E+09 9165 -1.2760E+09 4757
//A2 7.5110E+08 2769 -7.5110E+08 2478
//A3 4.4278E+09 8975 -1.0747E+09 2465
//E11 5.4925E-02 2838 -4.1160E-02 2788
//E22 2.2537E-01 2621 -4.2604E-04 2921
//E33 1.4576E-02 2815 -2.7463E-01 2621
//E12 9.7058E-02 2789 -9.7058E-02 2791
//E23 7.4272E-02 2779 -7.4272E-02 2781
//E31 1.3776E-01 2785 -1.5350E-01 2780
//S11 4.2677E+01 3113 -6.9474E+01 2621
//S22 4.7637E+01 2815 -4.2010E+01 2921
//S33 1.6261E+01 2853 -1.1496E+02 2780
//S12 2.2732E+01 2830 -2.2732E+01 2826
//S23 4.0309E+01 2597 -4.0309E+01 2645
//S31 3.8697E+01 2913 -3.7722E+01 3054
//SMS 9.0611E+01 2597 6.2561E-02 9662
##### Local Summary @Element :Max/IdMax/Min/IdMin####
//E11 5.4784E-02 2209 -4.6698E-02 2201
//E22 1.8822E-01 2188 -7.6612E-05 2323
//E33 2.2781E-02 2202 -2.2608E-01 2188
//E12 1.0327E-01 2193 -1.0327E-01 2196
//E23 4.0800E-02 2210 -4.0800E-02 2211
//E31 1.3391E-01 2189 -1.7023E-01 2194
//S11 4.3368E+01 2434 -7.5148E+01 2188
//S22 6.8745E+01 2203 -4.7855E+01 2048
//S33 7.0360E+01 2202 -1.1351E+02 2188
//S12 1.9354E+01 2193 -1.9354E+01 2196
//S23 1.4194E+01 1796 -1.4194E+01 1754
//S31 3.8915E+01 2367 -3.3190E+01 2298
//SMS 6.9701E+01 2187 3.8349E-02 7504
##### Global Summary @Node :Max/IdMax/Min/IdMin####
//U1 1.0996E-03 2818 -2.9048E-03 2803
//U2 8.2012E-03 2645 -8.2012E-03 2597
//U3 1.1800E-06 2465 -8.5895E-03 5373
//V1 8.9566E+02 10712 -2.1228E+03 2831
//V2 3.4246E+03 2645 -3.4246E+03 2597
//V3 3.2884E+02 2794 -4.0108E+03 5377
//A1 2.1058E+09 9165 -1.2760E+09 4757
//A2 7.5110E+08 2769 -7.5110E+08 2478
//A3 4.4278E+09 8975 -1.0747E+09 2465
//E11 5.4925E-02 2838 -4.1160E-02 2788
//E22 2.2537E-01 2621 -4.2604E-04 2921
//E33 1.4576E-02 2815 -2.7463E-01 2621
//E12 9.7058E-02 2789 -9.7058E-02 2791
//E23 7.4272E-02 2779 -7.4272E-02 2781
//E31 1.3776E-01 2785 -1.5350E-01 2780
//S11 4.2677E+01 3113 -6.9474E+01 2621
//S22 4.7637E+01 2815 -4.2010E+01 2921
//S33 1.6261E+01 2853 -1.1496E+02 2780
//S12 2.2732E+01 2830 -2.2732E+01 2826
//S23 4.0309E+01 2597 -4.0309E+01 2645
//S31 3.8697E+01 2913 -3.7722E+01 3054
//SMS 9.0611E+01 2597 6.2561E-02 9662
##### Global Summary @Element :Max/IdMax/Min/IdMin####
//E11 5.4784E-02 2209 -4.6698E-02 2201
//E22 1.8822E-01 2188 -7.6612E-05 2323
//E33 2.2781E-02 2202 -2.2608E-01 2188
//E12 1.0327E-01 2193 -1.0327E-01 2196
//E23 4.0800E-02 2210 -4.0800E-02 2211
//E31 1.3391E-01 2189 -1.7023E-01 2194
//S11 4.3368E+01 2434 -7.5148E+01 2188
//S22 6.8745E+01 2203 -4.7855E+01 2048
//S33 7.0360E+01 2202 -1.1351E+02 2188
//S12 1.9354E+01 2193 -1.9354E+01 2196
//S23 1.4194E+01 1796 -1.4194E+01 1754
//S31 3.8915E+01 2367 -3.3190E+01 2298
//SMS 6.9701E+01 2187 3.8349E-02 7504