FAQ 000605 EN

Helpful Questions & Answers

  • Frequently Asked Questions (FAQs)

This article was translated by Google Translator

View original text

In STEEL, you can select the stress Sigma Delta for stress analysis. What is it used for?


For the sigma-delta stress, the maximum difference between the normal stresses is determined. This displays the existing difference between the stresses available in the different load cases. Therefore, the results tables only show an existing stress value, no corresponding load cases or design ratios.

If, for example, For example, if there are only members under pure tension loading, the difference between the smallest and the largest stress is displayed for Sigma Delta in terms of magnitude. Thus, the difference from different load cases can be determined.

The sigma-delta stresses can be used for a fatigue limit design.


Impact resistance Fatigue design Sigma delta Difference


Write Comment...

Write Comment...

  • Views 437x
  • Updated 5 April 2021

Contact us

Contact Dlubal

Did you find your question?
If not, contact us via our free e-mail, chat, or forum support, or send us your question via the online form.

+49 9673 9203 0


RFEM Steel and Aluminium Structures

Add-on Module

Stress analysis of steel surfaces and members

Price of First License
1,030.00 USD