Nonlinear Buckling Analysis

Nonlinear Buckling Analysis with FEM

In addition to linear buckling analysis, RFEM also allows for nonlinear buckling analysis using the Finite Element Method.

Geometrically and materially nonlinear analysis with imperfections included (GMNIA) represents the "real" structural behavior in this case.

  • Stability Analysis of Structures

Structural FEM Analysis and Design

The structural analysis software RFEM 6 is the basis of a modular program family. The RFEM main program is used to define structures, materials, and loads for planar and spatial structural systems consisting of plates, walls, shells, and members. The program also allows you to create combined structures as well as model solid and contact elements.

Stability Analysis According to Eigenvalue and Incremental Method

The Structural Stability add-on for RFEM 6 / RSTAB 9 calculates critical load factors and the corresponding stability modes according to the eigenvalue method and the incremental method. Therefore, it is suitable for the linear and nonlinear analysis of the structural stability behavior.

Consideration of Nonlinear Material Laws

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).

Generation of Equivalent Geometric Imperfections and Pre-Deformed Initial Structures

The RF‑IMP/RSIMP add-on module for RFEM 5 / RSTAB 8 is used to generate equivalent geometric imperfections (equivalent loads) or a pre-deformed equivalent model.

Interfaces for Data Exchange

The structural analysis software provided by Dlubal Software can be integrated seamlessly into the Building Information Modeling (BIM) process. The large number of interfaces ensures the data exchange of digital building models with RFEM or RSTAB.

The web service (programmable interface) can be used to read or write data from/to RFEM and RSTAB.

Support and Learning

Customer service is a fundamental pillar of the Dlubal Software company philosophy. We provide any necessary support you need to complete your daily work.

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.


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

Analysis of Steel Joints \n Using FE Model in RFEM 6

Analysis of Steel Joints Using FE Model in RFEM 6

Webinar 29 September 2022 2:00 PM - 3:00 PM CEST

Online Training | English

Eurocode 3 | Steel Structures According to DIN EN 1993-1-1

Online Training 17 November 2022 9:00 AM - 1:00 PM CET


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
3,950.00 EUR

Add-on Module

Stability analysis according to the eigenvalue method

Price of First License
1,150.00 EUR

Add-on Module

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

Price of First License
850.00 EUR

Add-on Module

Consideration of nonlinear material laws

Price of First License
1,450.00 EUR