This article was translated by Google Translator

View original text

How can I perform a buckling analysis for a surface in RFEM?

Answer

If you want to perform a buckling analysis with shell elements, the add-on modules RF‑STABILITY, RF‑IMP, and RF‑STEEL Surfaces are required.

Determining governing load according to the linear static analysis
The results of the governing CO are then used in RF‑STABILITY to determine the lowest mode shape (local deflection / buckling of surface).
With the result of RF‑STABILITY, you can generate a pre‑deformed structure in RF‑IMP by scaling the mode shape to a maximum ordinate (maximum value of the initial deformation). An engineer has to define the maximum value of the initial deformation.
Now, you can copy the governing CO and design this according to the second-order analysis while considering the pre-deformed structure of RF‑IMP.
The results are then used to perform the stress analysis in RF‑STEEL Surfaces.

The attached video shows the general procedure again.

There are already some very interesting technical articles on this topic on our website.

# model @ 000750 #

Keywords

Buckling Shell buckling Surface buckling analysis

Downloads

Links

Write Comment...

Write Comment...

  • Views 344x
  • Updated 11/08/2020

Contact us

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

info-us@dlubal.com

Online Training | English

RFEM for Students | Part 3

Online Training 11/30/2020 9:00 AM - 12:00 PM CET

Online Training | English

RFEM | Steel Basics

Online Training 12/08/2020 9:00 AM - 12:00 PM EDT

Online Training | English

RFEM for Students | Part 3

Online Training 12/11/2020 3:00 PM - 6:00 PM CET

FEA Troubleshooting and Optimization in RFEM

FEA Troubleshooting and Optimization in RFEM

Webinar 11/11/2020 2:00 PM - 3:00 PM

How to Be More Productive Using RFEM

How to Be More Productive Using RFEM

Webinar 07/07/2020 3:00 PM - 4:00 PM CEST

Introduction to Solid Modeling \n in RFEM

Introduction to Solid Modeling in RFEM

Webinar 06/30/2020 2:00 PM - 3:00 PM EDT

Modeling with Solids in RFEM

Modeling with Solids in RFEM

Webinar 06/09/2020 3:00 PM - 3:45 PM CEST

Tensile Membrane Structures and \n CFD Wind Load Simulation

Tensile Membrane Structures and CFD Wind Load Simulation

Webinar 04/08/2020 2:00 PM - 3:00 PM EDT

RFEM Other
RF-STABILITY 5.xx

Add-on Module

Stability analysis according to the eigenvalue method

Price of First License
1,030.00 USD
RFEM Other
RF-IMP 5.xx

Add-on Module

Generation of equivalent geometric imperfections and pre-deformed initial structures for nonlinear calculations

Price of First License
760.00 USD
RFEM Steel and Aluminum Structures
RF-STEEL 5.xx

Add-on Module

Stress analysis of steel surfaces and members

Price of First License
1,030.00 USD