Nonlinear Buckling Analysis

Nonlinear Buckling Analysis with FEM

The finite element method is suitable for linear buckling analyses. Moreover, you can also perform nonlinear buckling analyses in the structural engineering program RFEM.

Due to the geometrically and materially nonlinear analysis including imperfections (GMNIA) in RFEM, you obtain the "real" structural behavior as a result, which you can then use to continue working.
  • Stability Analysis of Structures

Structural FEM Analysis and Design

Do you already know the structural analysis program RFEM 6? As a basis of the modular program family, it is used to define structures, materials, and loads for planar and spatial structural systems consisting of plates, walls, shells, and members. Do you want to use different elements in your project? No problem. RFEM also allows you to create combined structures as well as to model solid and contact elements.

Stability Analysis According to Eigenvalue and Incremental Method

The stability of structures is an important factor when planning your project. Dlubal Software has just the right add-on for this. No matter whether you work in RFEM 6 or RSTAB 9, because you get the Structure Stability add-on for RFEM 6 / RSTAB 9. This extension calculates critical load factors and the corresponding stability modes according to the eigenvalue method and the incremental method. Therefore, you can use it for both linear and nonlinear analysis of the structural stability behavior.

Consideration of Nonlinear Material Laws

Things don't always run smoothly in life. You should also be prepared for all eventualities when planning your structural projects. RFEM 6 will help you. The Nonlinear Material Behavior add-on for RFEM 6 allows you to consider nonlinear material behavior in RFEM (for example, isotropic plastic, orthotropic plastic, isotropic damage). You can thus avoid any unpleasant surprises in the end.

Generation of Equivalent Geometric Imperfections and Pre-Deformed Initial Structures

Are you looking for more options for your structural analysis software? The RF‑IMP/RSIMP add-on module for RFEM 5 / RSTAB 8 helps you to generate equivalent geometric imperfections (equivalent loads) or a pre-deformed equivalent model. Thus, you get another helpful partner at your side.

Interfaces for Data Exchange

At Dlubal Software, everyone works hand in hand. So do the structural analysis programs. The Dlubal structural analysis software can be seamlessly integrated into the Building Information Modeling (BIM) process to work together without any problems. The large number of interfaces allows you to exchange the data of digital building models with RFEM or RSTAB.

Use the Webservice (a programmable interface) to read or write the data from or to RFEM and RSTAB.

Support and Learning

Are you interested in Dlubal programs or Dlubal Software itself? Do you have a concern that you need help with? Feel free to contact us! Customer service is a fundamental pillar of the Dlubal Software company philosophy. We provide any necessary support you need to complete your daily work.


Contact Dlubal

Do you have any questions about our products or which are best suited for your design projects? Contact us via phone, email, chat or forum or search the FAQ page, available 24/7.

+420 227 203 320

[email protected]

Online Manual | RFEM 6


Structural Analysis Models to Download

Models to Download

Select numerous structural models to utilize them for training purposes or for your projects.


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New Features in Steel Joints Add-On

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Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids, and contact elements

Price of First License
4,350.00 EUR

Add-on Module

Stability analysis according to the eigenvalue method

Price of First License
1,350.00 EUR

Add-on Module

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

Price of First License
1,000.00 EUR

Add-on Module

Consideration of nonlinear material laws

Price of First License
1,650.00 EUR