# Equivalent Strain Solution In ANSYS Structural Analyses

Like equivalent Von-Mises stress result, there is an equivalent Von-Mises strain is available in classical mechanics. Also, Von-Mises results depend on the same principles with Von-Mises stresses. But ANSYS® provides another solution tool for Von-Mises strain results for structural FEA analyses in ANSYS® Mechanical.

Here, we will show you the theory of equivalent strain also known as Von-Mises strain in classical mechanics. Also, we will show you how to see the equivalent strain results in ANSYS® Mechanical analyses.

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## What Is Equivalent(Von-Mises) Strain?

Equivalent Von-Mises strain has the equation below;

In this equation, the three strain elements are the principal strains which can be originated from principal stress values. v’ is the effective Poisson’s ratio of the material which is generally considered as 0.5 for plastic strains.

## How To See The Equivalent(Von-Mises) Strain In ANSYS® Mechanical Analyses?

As you see above, right-click on the ‘Solution’ tab in ANSYS® Mechanical, then hover your mouse on the ‘Insert’ tab. Then click on the ‘Equivalent(Von-Mises)’ option from the ‘Strain’ tab.

Then click on the ‘Solve’ button to see the equivalent strain result in ANSYS® Mechanical. But you must be assigned the boundary conditions and obtained mesh structures to see the solution.

The solution is shown like above in ANSYS® Mechanical. You can use probe results and contour options to see equivalent(Von-Mises) strains in different forms.

## Conclusion

As we stated for equivalent stress, Von-Mises’ theories are more appropriate for ductile materials. So, the general theory and assignment of equivalent strain values in ANSYS® Mechanical is very simple like that.

Do not forget to leave your comments and questions below about the equivalent strain result in ANSYS® Mechanical.

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