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Problem Set 1

Resume the ANSYS Tutorial and make modifications to it as discussed below. To resume the ANSYS tutorial:

Start ANSYS; Specify the same directory but use a different jobname. Once ANSYS comes up, in the Utility Menu, click on:

Utility Menu > File > Resume from

Choose truss.db and click OK.

Consider the case where the displacement constrains constraints at A and C are interchanged i.e.

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Re-solve the truss problem with the modified constraints. You . Fom your ANSYS solution:
1. List the reactions. Note that you can save the reaction listing as follows: in the window that comes up with the listing of the reaction forces, click on:

File > Save As

2. Determine the force in each truss member and whether the member is in tension or compression.

Tips: Start from your ANSYS solution to the truss tutorial problem but use a different job name as follows:

• Start the ANSYS Product Launcher. Specify the same directory as for the tutorial but use a different jobname. Once ANSYS comes up, in the Utility Menu, click on: Utility Menu > File > Resume from. Choose truss.db and click OK.

Note that you can delete constraints using:

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It works similar to how you apply loads.

Tip: You can plot the displacement constraints in the Graphics window as follows:

Utility Menu > Pltctrls > Symbols

Select All Applied BCs for Boundary condition symbol. Click OK.

You might have to use :

Utility Menu > Plot > Replot

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for the constraint symbols to appear in your plot.

Determine the following results from your ANSYS solution:

1. List the reactions. Note that you can save the reaction listing as follows: in the window that comes up with the listing of the reaction forces, click on:

File > Save As

2. Determine the force in each truss member and whether the member is in tension or compression.
Go to Problem Set 2

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