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# Online Calculator: Combined Stress

{CalQlata © 01/01/20}

## Help

### Elastic Stress

## Downloadable Version

This **Combined Stress** calculator is accessible from anywhere in the website using the shortcut key; "Alt" + "q" (for equivalent).

The "**Reset**" button clears all calculations on the page and reinstalls default values (this button may not respond in the FireFox browser).

Reset can also be achieved by pressing the "F5" key.

Hover your cursor over the symbols for an associated description.

Its calculation results only apply to materials that obey Hooke's law, i.e. those that deform linearly (proportionally) with the applied stresses, both directional and shear, and returns fully to its prestressed condition.

Combined (or equivalent) stress is normally used for extreme operational design conditions. Survival conditions normally include designs that take plastic deformation into account.

This stress should not be used for fatigue or normal operational conditions.

The calculation method used for above calculator is that derived by Hencky and von Mises. It is verified in the downloadable calculator by comparing this calculation method with the principle stress calculation, both of which provide exactly the same results.

Full downloadable versions of this calculator is available from this website at; Combined Stress.

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