1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
! ANSYS command file to perform 2D Truss Tutorial (Chandrupatla p.123)
!
/title, Bridge Truss Tutorial
/PREP7 ! preprocessor phase
!
! define parameters (mm)
height = 3118
width = 3600
!
! define keypoints
!
K,1, 0, 0 ! keypoint, #, x, y
K,2, width/2,height
K,3, width, 0
K,4, 3*width/2, height
K,5, 2*width, 0
K,6, 5*width/2, height
K,7, 3*width, 0
!
! define lines
!
L,1,2 ! line connecting kpoint 1 and 2
L,1,3
L,2,3
L,2,4
L,3,4
L,3,5
L,4,5
L,4,6
L,5,6
L,5,7
L,6,7
!
! element definition
!
ET,1,LINK1 ! element type #1; spring element
R,1,3250 ! real constant #1; Xsect area: 3200 mm^2
MP,EX,1,200e3 ! material property #1; Young's modulus: 200 GPa
LESIZE,ALL, , ,1,1,1 ! specify divisions on unmeshed lines
LMESH,all ! mesh all lines
!
FINISH ! finish pre-processor
!
/SOLU ! enter solution phase
!
! apply some constraints
DK,1,ALL,0 ! define a DOF constraint at a keypoint
DK,7,UY,0
!
! apply loads
!
FK,1,FY,-280e3 ! define a force load to a keypoint
FK,3,FY,-210e3
FK,5,FY,-280e3
FK,7,FY,-360e3
!
SOLVE ! solve the resulting system of equations
FINISH ! finish solution
/POST1
PRRSOL,F ! List Reaction Forces
PLDISP,2 ! Plot Deformed shape
PLNSOL,U,SUM,0,1 ! Contour Plot of deflection
ETABLE,SAXL,LS, 1 ! Axial Stress
PRETAB,SAXL ! List Element Table
PLETAB,SAXL,NOAV ! Plot Axial Stress
|
