Frequently Asked Questions (FAQ)

Search FAQ

Show Filter Hide Filter

Customer Support 24/7

Knowledge Base

In addition to our technical support (e.g. via chat), you’ll find resources on our website that may help you with your design using Dlubal Software.


Receive information including news, useful tips, scheduled events, special offers, and vouchers on a regular basis.

  • Answer

    In the Edit dialog box of the respective surface, in the "Modify Stiffness" tab, you can select which type of stiffness modification is to be performed. For example, you can use "Multiplier Factors" as shown in Figure 01.

    Multiplier factors can be specified for various stiffness components (for example, membrane stiffness).

    Whether these factors or the defined stiffness modification will be applied in the individual load cases or load combinations is controlled via the calculation parameters. Now, this means that the modification is taken into account as soon as the check box shown in Figure 02 has been selected. When unselecting the check box, the modification will not be considered for the surfaces.

    Thus, it is possible to control the stiffness modification by load case or by load combination.

Contact us

Contact Dlubal Software

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.

(267) 702-2815

First Steps

First steps

We provide hints and tips to help you get started with the main programs RFEM and RSTAB.

Wind Simulation & Wind Load Generation

With the stand-alone program RWIND Simulation, wind flows around simple or complex structures can be simulated by means of a digital wind tunnel.

The generated wind loads acting on these objects can be imported to RFEM or RSTAB.

Your support is by far the best

“Thank you for the valuable information.

I would like to pay a compliment to your support team. I am always impressed how quickly and professionally the questions are answered. I have used a lot of software with a support contract in the field of structural analysis, but your support is by far the best. ”