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Step 2: Geometry

Our geometry is 2D. At Workbench, in the Beam cell, right click on Geometry, and select Properties. You will see the properties menu on the right of the Workbench window. Under Advance Basic Geometry Options, change the Analysis Type to 2D.select Line Bodies. This is because we are going to create a line geometry.

In the Project Schematic, double left click on Geometry to start preparing the geometry.

At this point, a new window, ANSYS Design Modeler will be opened. You will be asked to select desired length unit. Use the default meter unit and click OK.

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We need to apply point boundary conditions at four points A, B, C and D shown in the figure below. In ANSYS, point boundary conditions are applied to nodes. When we mesh the rectangle using the ANSYS Mesher, nodes will automatically be created at A and B since these are corner points; the corresponding displacement BC's can be applied to these corner nodes. However, there is no guarantee that there will be nodes exactly at C and D since these are not corners. In this case, ANSYS will apply the forces at the nodes that are closest to C and D. This is possibly acceptable if the mesh is sufficiently fine.

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An alternative scenario is that we get clever and force C and D to be exact points. This can be done by splitting the top and bottom edges into three section as shown below. This will force nodes to be created at points C and D. Then, the point forces can be applied to these nodes. This is the strategy we'll use in creating the geometry.

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Creating a Sketch

Like any other common CAD modeling practice, we start by creating a sketch.

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Note: In sketching mode, there is Undo features that you can use if you make any mistake. Image Added
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On the right, there is a Graphic window. At the lower right hand corner of the Graphic window, click on the +Z axis to have a normal look of the XY Plane.
In the Sketching Toolboxes, select Rectangle Line. In the Graphics window, create a three rough Rectangle lines from starting from the origin in the positive XY direction (Make sure that you see a letter P at the origin before you start dragging the rectangleand at each connection between the lines. The letter P at the origin means the geometry is constrained at the originpoint.)
You should have something like this: Image Removed Image Added

Note: You do not have to worry about geometry dimension for now, we can dimension them properly in the later step.

Modify the Sketch

We would like to split the top and bottom with three edges. Click Modify tab and select Split. Roughly select four points on the top and bottom of the rectangle. Image Removed

Dimensions

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Under Sketching Toolboxes, select Dimensions tab, use the default dimensioning tools. Dimension the geometry as shown: Image Removed
 
Now we need to constraint the lower rectangle with the top of the rectangle which has been properly dimensioned. Click Constraints tab, select Equal Length. Click the appropriate top and bottom edge and set them to be of equal length. Image Added
Under Details View on the lower left corner, input the value for dimension appropriately.
V1 H1: 0.05 1 m
H2: 0.1 2 m
H3: 0.2 1 m H4: 0.1 m

At this point, you should see something like this for your sketch:

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We are done with sketching.

Create Surface 

Now that we have the sketch done, we can create a surface line body for this sketch.

Concept > Surfaces Lines From Sketches

This will create a new surface SurfaceSK1line Line1. Under Details View, select Sketch1 as Base Objects and click Apply. Finally click Generate Image Modified to generate the surface. This is what you should see under your Tree Outline. Image Added

Create Cross Section

We will now add a cross section to the line body.

Concept > Cross Section > Rectangular 

Under Details View, input value as follow:

B - 0.05m

H - 1m Image Added
Finally, under expand the Line Body
Outline > 1 Part, 1 Body > Line Body
And attach Rect1 to Cross Section under Details View.
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We are done with geometry. Image Removed
You can close the Design Modeler and go back to Workbench (Don't worry, it will auto save).

Go to Step 3: Mesh

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