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Maximum, Minimum And Middle Principal Stresses And Strains In ANSYS®

Principal stresses and strains are very important aspects of classical mechanics. If you are not determined about which stress or strain theory that you need to use in a specific problem, you can see the principal stresses or strains in ANSYS® Mechanical. 

You can see the theory behind the principal stresses and strains in the article above. But in here, we will show you what is the maximum, middle and minimum principal stresses and how to see these stress and strain values in ANSYS® Mechanical structural FEA analyses.

What Are The Maximum, Minimum, And Middle Principal Stresses And Strains?

When you find principal stresses in stress analysis, you will sort these stress values from bigger to smaller values. σ1 will be the greatest value, σ2 is the middle value and σ3 is the smallest principal stress value. And also it is very easy to find corresponding principal strain values by using the elasticity modulus of the material. 

In different stress and strain theories, you can use these maximum, minimum, and middle principal stress values. 

How To See Maximum, Minimum, And Middle Principal Stress Values In ANSYS® Mechanical? 

Select one of the options.

After specifying the required boundary conditions for our physical model in ANSYS® Mechanical structural analyses, and obtaining the required mesh structure, you can see the maximum, middle and minimum principal stress values.

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To do it, just right-click on the ‘Solution’ tab, then hover your mouse on the ‘Insert’. From the ‘Stress’ or ‘Strain’, you can add ‘Middle’, ‘Maximum’ or ‘Minimum’ principals to see the result.

Maximum elastic strain results.

As you see above, we selected the ‘Maximum Elastic Strain’ option. You can use probes or different contour options to see the results.

Conclusion

As you see above, seeing the maximum, minimum, and middle principal stress and strain values in ANSYS® Mechanical is very simple above. 

Do not forget to leave your comments and questions below about the maximum, minimum, and middle principal stress and strain values in ANSYS® Mechanical.

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

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