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1. INTRODUCTION
TO
ANSYS
5.6
-
Part
1
Workshop Supplement
Workshop 10
APDL Basics
2-D Bracket
using Parameters

2. INTRODUCTION
TO
ANSYS
5.6
-
Part
1
Workshop Supplement
001289
30 Nov 1999
W10-2
10. APDL Basics
2-D Bracket using Parameters
Description
• Build and mesh the 2-D bracket shown below using parameters.

3. INTRODUCTION
TO
ANSYS
5.6
-
Part
1
Workshop Supplement
001289
30 Nov 1999
W10-3
10. APDL Basics
2-D Bracket using Parameters
d1
(6 in)
d2
(4 in)
width
(2 in)
width
(2 in)
width/2
(1 in)
rad1
(0.4 in)
rad1
(0.4 in)
r_fillet
(0.4 in)
thick
(0.5 in)

4. INTRODUCTION
TO
ANSYS
5.6
-
Part
1
Workshop Supplement
001289
30 Nov 1999
W10-4
10. APDL Basics
2-D Bracket using Parameters
1. Enter ANSYS in the working directory specified by your instructor using “bracket2d”
as the jobname.
2. Define the parameters:
– Utility Menu > Parameters > Scalar Parameters ...
• d1 = 6
• d2 = 4
• d3 = 2
• e_size = 0.25
• e_type=82
• ex1 = 30e6
• nu = 0.27
• r_fillet = 0.4
• rad1 = 0.4
• thick = 0.5
• [Close]

5. INTRODUCTION
TO
ANSYS
5.6
-
Part
1
Workshop Supplement
001289
30 Nov 1999
W10-5
10. APDL Basics
2-D Bracket using Parameters
3. Enter the preprocessor and create two rectangular areas:
– Main Menu > Preprocessor > -Modeling- Create > -Areas- Rectangle > By Centr & Cornr +
• WP X = d1/2
• WP Y = 0
• Width = d1
• Height = d3
• [Apply]
• WP X = d1-d3/2
• WP Y = -d2/2+d3/2
• Width = d3
• Height = d2
• [OK]
– Or issue:
/PREP7
BLC5, d1/2, 0, d1, d3
BLC5, d1-d3/2, -d2/2+d3/2, d3, d2

6. INTRODUCTION
TO
ANSYS
5.6
-
Part
1
Workshop Supplement
001289
30 Nov 1999
W10-6
10. APDL Basics
2-D Bracket using Parameters
4. Create two circular areas:
– Main Menu > Preprocessor > -Modeling- Create > -Areas- Circle > Solid Circle +
• WP X = 0
• WP Y = 0
• Radius = d3/2
• [Apply]
• WP X = d1-d3/2
• WP Y = -d2+d3/2
• Radius = d3/2
• [OK]
– Or issue:
CYL4, , ,d3/2
CYL4, d1-d3/2, -d2+d3/2, d3/2
5. Add all of the areas together to form a single area:
– Main Menu > Preprocessor > -Modeling- Operate > -Booleans- Add > Areas +
• [Pick All]
– Or issue:
AADD,ALL

7. INTRODUCTION
TO
ANSYS
5.6
-
Part
1
Workshop Supplement
001289
30 Nov 1999
W10-7
10. APDL Basics
2-D Bracket using Parameters
6. Turn line numbering on and plot lines:
– Utility Menu > PlotCtrls > Numbering ...
• Set Line numbers on, then [OK]
– Utility Menu > Plot > Lines
– Or issue:
/PNUM,LINE,1
LPLOT
7. Create a line fillet at the intersection of lines 18 and 24:
– Main Menu > Preprocessor > -Modeling- Create > -Lines- Line Fillet +
• Pick lines 18 and 24, then [OK]
• RAD = r_fillet
• [OK]
– Or issue:
LFILLT, 18, 24, r_fillet

8. INTRODUCTION
TO
ANSYS
5.6
-
Part
1
Workshop Supplement
001289
30 Nov 1999
W10-8
10. APDL Basics
2-D Bracket using Parameters
8. Plot lines and then create an area bounded by lines 1, 3, and 4:
– Utility Menu > Plot > Lines
– Main Menu > Preprocessor > -Modeling- Create > -Areas- Arbitrary > By Lines +
• Pick lines 1, 3, and 4, then [OK]
– Or issue:
LPLOT
AL, 1, 3, 4
9. Add all of the areas together to form a single area:
– Main Menu > Preprocessor > -Modeling- Operate > -Booleans- Add > Areas +
• [Pick All]
– Or issue:
AADD,ALL

9. INTRODUCTION
TO
ANSYS
5.6
-
Part
1
Workshop Supplement
001289
30 Nov 1999
W10-9
10. APDL Basics
2-D Bracket using Parameters
10. Create the two circular areas for the bracket holes:
– Main Menu > Preprocessor > -Modeling- Create > -Areas- Circle > Solid Circle +
• WP X = 0
• WP Y = 0
• Radius = rad1
• [Apply]
• WP X = d1-d3/2
• WP Y = -d2+d3/2
• Radius = rad1
• [OK]
– Or issue:
CYL4, , ,rad1
CYL4, d1-d3/2, -d2+d3/2, rad1
11. Subtract the two circular areas from the bracket area:
– Main Menu > Preprocessor > -Modeling- Operate > -Booleans- Subtract > Areas +
• Pick the bracket (base) area, then [OK]
• Pick the two circular areas, then [OK]
– Or issue:
ASBA, 2, ALL

10. INTRODUCTION
TO
ANSYS
5.6
-
Part
1
Workshop Supplement
001289
30 Nov 1999
W10-10
10. APDL Basics
2-D Bracket using Parameters
12. Define element type 1 as PLANE82 and set keyopt(3)=3:
– Main Menu > Preprocessor > Element Type > Add/Edit/Delete ...
• [Add ...]
• Select “Structural Solid” and “Quad 8node 82”, then [OK]
• [Options …]
• K3 = Plane strs w/thk
• [OK]
• [Close]
– Or issue:
ET, 1, e_type (or ET, 1, PLANE82)
KEYOPT, 1, 3, 3
13. Define the bracket thickness:
– Main Menu > Preprocessor > Real Constants > Add/Edit/Delete …
• [Add ...]
• [OK]
• THK = thick
• [OK]
• [Close]
– Or issue:
R, 1, thick

11. INTRODUCTION
TO
ANSYS
5.6
-
Part
1
Workshop Supplement
001289
30 Nov 1999
W10-11
10. APDL Basics
2-D Bracket using Parameters
14. Define material properties:
– Main Menu > Preprocessor > Material Props > -Constant- Isotropic ...
• [OK]
• EX = ex1
• NUXY = nu
• [OK]
– Or issue:
MP, EX, 1, ex1
MP, NUXY, 1, nu

12. INTRODUCTION
TO
ANSYS
5.6
-
Part
1
Workshop Supplement
001289
30 Nov 1999
W10-12
10. APDL Basics
2-D Bracket using Parameters
15. Set element size and free mesh the model with quad elements:
– Main Menu > Preprocessor > MeshTool …
• Activate smart sizing and set its level to 4
• Pick [Set] under Size Controls: Global
• SIZE = e_size
• [OK]
• Select “Free” and “Quad” under Shape:
• [Mesh]
• [Pick All]
– Or issue:
SMRTSIZE,4
ESIZE,e_size
MSHAPE,0,2D
MSHKEY,0
AMESH,ALL

13. INTRODUCTION
TO
ANSYS
5.6
-
Part
1
Workshop Supplement
001289
30 Nov 1999
W10-13
10. APDL Basics
2-D Bracket using Parameters
16. Save the meshed model and exit ANSYS:
– Utility Menu > File > Save as …
• Enter “bracket2d-mesh.db” as the database name, then [OK]
– Pick the “QUIT” button in the Toolbar
• Select “Quit - No Save!”
• [OK]
– Or issue:
SAVE,bracket2d-mesh,db
FINISH
/EXIT,NOSAVE