# Applying Pressure in ANSYS – Illustrated Explanation

In this article on Mechanicalland, we will show you how to assign or define pressure in ANSYS Mechanical. As you know from engineering pressure is a very major variable in engineering problems. You will see that applying pressure in ANSYS is very simple.

Also, the definition of pressure values in engineering problems is very important. In finite element analysis, the pressure variable is also very important. Because a pressure value on a part that will be analyzed is a boundary condition. As you know from the finite element analysis, the correct definitions of boundary conditions are very important to obtain very realistic and correct analyses.

So, you will learn how to define pressure as a part of various features such as faces in ANSYS Mechanical.

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## How to Define a Pressure on a Part in ANSYS Mechanical?

Firstly, you need to open the ANSYS Mechanical interface to assign pressure values to parts. Right-click on the analysis system in ANSYS Mechanical interface(Static Structural in this example). And then, hover your Mouse on the Insert section as shown by the green arrow above. Then click on Pressure as shown by the green box in ANSYS Mechanical.

Secondly, to define pressure, you can only select faces or surfaces of the parts in ANSYS Mechanical as the red arrow. Because you need a geometric area to define pressure in the physical mean. For geometry selection for pressure, you need to activate the geometry tab as shown by the red box above. Then you can select a face or surface of a part in ANSYS Mechanical.

After that, click on the Apply button in the Geometry tab as the blue arrow above.

### Select the Method and Apply Pressure

And then, as you can see above, you can assign your pressure as components, vector, or normal to ANSYS Mechanical. If you select components, you need to enter the X, Y, and Z values of your pressure. If you select vectors, you enter a pressure value. Then you select a vector to define the direction of the pressure. So, normal to directly apply your pressure value to the surface of the parts selected in ANSYS Mechanical.

Finally, we selected the components method to define our pressure. We entered a 500 Pa value of pressure to each X, Y and Z coordinate as shown by the blue box above. You can see the result of pressure as shown by the blue arrow.

## Conclusion

So, do not forget to leave your comments and questions below about inserting pressure on parts in ANSYS R18.

The application of pressure to a part is very basic like that in ANSYS Mechanical.

NOTE: All the screenshots and images are used for educative and informative purposes. Images used courtesy of ANSYS, Inc.

Also, ANSYS provides other kinds of features and tools to make the FEA analyses easier. Check the article below to learn them!

Stress and Strain Intensity Results in ANSYS Structural Analyses

Maximum Shear Stress Result in ANSYS® Structural Analyses

Maximum, Minimum and Middle Principal Stresses and Strains in ANSYS

Equivalent Strain Solution in ANSYS Structural Analyses

Equivalent Stress Solution in ANSYS® Structural Analyses