ABAQUS在土木结构应用学习1------;杆件铰结的模拟

上一篇 / 下一篇 2008-05-27 18:16:48

在土木中杆系之间的铰接是非常普遍的，而且这个在ANSYS中讨论非常多了，但在ABAQUS版块中却相对比较少，所以这里就针对杆之间的交接做一个系统的总结，希望对从事土木的朋友们有点帮助。

在ABAQUS中有4个方法，分别如下：
1.用*mpc中的pin命令

*Heading
** Job name: bb Model name: Model-1
*Preprint, echo=NO, model=NO, history=NO, contact=NO
*Node
      1,         -20.,         -15.,           0.
      2,         -20.,          15.,           0.
     32,         -20.,          15.,           0.
      3,          10.,          15.,           0.
      4,          10.,         -15.,           0.
      5,         -20.,         -12.,           0.
      6,         -20.,          -9.,           0.
      7,         -20.,          -6.,           0.
      8,         -20.,          -3.,           0.
      9,         -20.,           0.,           0.
     10,         -20.,           3.,           0.
     11,         -20.,           6.,           0.
     12,         -20.,           9.,           0.
     13,         -20.,          12.,           0.
     14,         -17.,          15.,           0.
     15,         -14.,          15.,           0.
     16,         -11.,          15.,           0.
     17,          -8.,          15.,           0.
     18,          -5.,          15.,           0.
     19,          -2.,          15.,           0.
     20,           1.,          15.,           0.
     21,           4.,          15.,           0.
     22,           7.,          15.,           0.
     23,          10.,          12.,           0.
     24,          10.,           9.,           0.
     25,          10.,           6.,           0.
     26,          10.,           3.,           0.
     27,          10.,           0.,           0.
     28,          10.,          -3.,           0.
     29,          10.,          -6.,           0.
     30,          10.,          -9.,           0.
     31,          10.,         -12.,           0.
*Element, type=B31,elset=eall
1, 1, 5
2, 5, 6
3, 6, 7
4, 7, 8
5, 8, 9
6, 9, 10
7, 10, 11
8, 11, 12
9, 12, 13
10, 13, 2
11, 32, 14
12, 14, 15
13, 15, 16
14, 16, 17
15, 17, 18
16, 18, 19
17, 19, 20
18, 20, 21
19, 21, 22
20, 22, 3
21, 3, 23
22, 23, 24
23, 24, 25
24, 25, 26
25, 26, 27
26, 27, 28
27, 28, 29
28, 29, 30
29, 30, 31
30, 31, 4
*Nset, nset=base
1,4
*elset,elset=loadelem,generate
11,20,1
** Section: Section-1 Profile: Profile-1
*Beam Section, elset=eall, material=Material-1, section=RECT
0.25, 0.6
0.,0.,-1.
** MATERIALS
**
*Material, name=Material-1
*Elastic
2e+11, 0.3
*mpc
tie,2,32
*release
11,s1,allm
*boundary
1,1,6
4,1,6
** ----------------------------------------------------------------
**
** STEP: Step-1
**
*Step, name=Step-1
*Static
1., 1., 1e-05, 1.
**
** LOADS
**
** Name: Load-1   Type: Line load
*Dload
loadelem, PY, -100000.
**
** OUTPUT REQUESTS
**
*Restart, write, frequency=0
**
** FIELD OUTPUT: F-Output-1
**
*Output, field, variable=PRESELECT
**
*Output, field
*Node Output
CF, RF, U
*Element Output, directions=YES
LE, PE, PEEQ, PEMAG, S, SF
** HISTORY OUTPUT: H-Output-1
**
*Output, history, variable=PRESELECT
*End Step

4.用kinematic coupling命令
*Heading
** Job name: bb Model name: Model-1
*Preprint, echo=NO, model=NO, history=NO, contact=NO
*Node
      1,         -20.,         -15.,           0.
      2,         -20.,          15.,           0.
     32,         -20.,          15.,           0.
      3,          10.,          15.,           0.
      4,          10.,         -15.,           0.
      5,         -20.,         -12.,           0.
      6,         -20.,          -9.,           0.
      7,         -20.,          -6.,           0.
      8,         -20.,          -3.,           0.
      9,         -20.,           0.,           0.
     10,         -20.,           3.,           0.
     11,         -20.,           6.,           0.
     12,         -20.,           9.,           0.
     13,         -20.,          12.,           0.
     14,         -17.,          15.,           0.
     15,         -14.,          15.,           0.
     16,         -11.,          15.,           0.
     17,          -8.,          15.,           0.
     18,          -5.,          15.,           0.
     19,          -2.,          15.,           0.
     20,           1.,          15.,           0.
     21,           4.,          15.,           0.
     22,           7.,          15.,           0.
     23,          10.,          12.,           0.
     24,          10.,           9.,           0.
     25,          10.,           6.,           0.
     26,          10.,           3.,           0.
     27,          10.,           0.,           0.
     28,          10.,          -3.,           0.
     29,          10.,          -6.,           0.
     30,          10.,          -9.,           0.
     31,          10.,         -12.,           0.
*Element, type=B31,elset=eall
1, 1, 5
2, 5, 6
3, 6, 7
4, 7, 8
5, 8, 9
6, 9, 10
7, 10, 11
8, 11, 12
9, 12, 13
10, 13, 2
11, 32, 14
12, 14, 15
13, 15, 16
14, 16, 17
15, 17, 18
16, 18, 19
17, 19, 20
18, 20, 21
19, 21, 22
20, 22, 3
21, 3, 23
22, 23, 24
23, 24, 25
24, 25, 26
25, 26, 27
26, 27, 28
27, 28, 29
28, 29, 30
29, 30, 31
30, 31, 4
*Nset, nset=base
1,4
*elset,elset=loadelem,generate
11,20,1
** Section: Section-1 Profile: Profile-1
*Beam Section, elset=eall, material=Material-1, section=RECT
0.25, 0.6
0.,0.,-1.
** MATERIALS
**
*Material, name=Material-1
*Elastic
2e+11, 0.3
*kinematic coupling,ref node=2
32,1,2
*boundary
1,1,6
4,1,6
** ----------------------------------------------------------------
**
** STEP: Step-1
**
*Step, name=Step-1
*Static
1., 1., 1e-05, 1.
**
** LOADS
**
** Name: Load-1   Type: Line load
*Dload
loadelem, PY, -100000.
**
** OUTPUT REQUESTS
**
*Restart, write, frequency=0
**
** FIELD OUTPUT: F-Output-1
**
*Output, field, variable=PRESELECT
**
*Output, field
*Node Output
CF, RF, U
*Element Output, directions=YES
LE, PE, PEEQ, PEMAG, S, SF
** HISTORY OUTPUT: H-Output-1
**
*Output, history, variable=PRESELECT
*End Step