4. Apply Pressure and Symmetry Boundary Conditions
In this problem, we have to impose the constant pressure whose magnitude is 1000 lb/in^2, on line B. Moreover, the symmetry conditions need to be applied along line C and D. In this case, the pressure is compressive, therefore, we have to enter in -1000 lb/in^2 for compressive loading.
Here are the steps showing how to apply pressure on line B.
PREPROCESSOR -> Loads
LOADS -> DefineLoads
DEFINE LOADS ->Apply
APPLY -> Structural Pressure
STRUCTURAL PRESSURE -> On Lines
Click on line B which is at the top of the plate. After you have clicked
on line B and click OK, then you should see the image similar
to the one below.
Click
on constant value and enter in -1000 which tells
ANSYS that the pressure is compressive and has magnitude of 1000 lb/in^2.
Now the arrows should appear as in the figure below.
The next step is to apply symmetry on line C and line D. To apply symmetry
on lines, follow the steps below.
PREPROCESSOR -> Loads
LOADS -> DefineLoads
DEFINE
LOADS ->Apply
APPLY
-> Structural Displacement
STRUCTURAL
DISPLACEMENT -> Symmetry B.C.
SYMMETRY
B.C. -> On Lines
Then click on line C and line D. Click OK.
Then the letter "S" should
appear on the screen.
The next step is to have ANSYS solve for displacements of the elements
near the crack and stresses along line D.