Nonlinear Buckling Analysis

Buckling Analysis Using 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 behaviour.

Imperfections can be generated using the add‑on modules RF‑STABILITY and RF‑IMP. Nonlinear material behaviour can be considered by using the ‘Isotropic Plastic 2D’ material model (requires RF‑MAT NL).

  • Steel bridge
  • Steel Hall
  • Industrial storage tanks

3D Finite Element Analysis and Design

Structural engineering FEA software RFEM is the basis of a modular software system. RFEM 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 Calculation Method

RF-STABILITY determines buckling shapes and critical load factors of the model using the Eigenvalue Method. Therefore, it is especially suitable for linear and nonlinear analysis of stability behaviour.

Generation of Equivalent Geometric Imperfections and Pre-Deformed Initial Models

RF-IMP creates equivalent geometric imperfections (equivalent lateral loads) or a pre‑deformed initial model.

Application of Nonlinear Material Laws

RF-MAT NL allows you to apply the nonlinear material laws in RFEM.

Interfaces for Data Exchange

The structural analysis software provided by Dlubal can be seamlessly integrated into the Building Information Modeling (BIM) process. A variety of interfaces allows you to exchange data from digital building models with RFEM or RSTAB.

Support and Learning

Customer service is one of the fundamental pillars of the Dlubal Software company philosophy. We also offer you all the support you need for your daily work.

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RFEM 5
RFEM

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
3,540.00 USD
RFEM 5
RF-STABILITY

Add-on Module

Stability analysis according to the eigenvalue method

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

Add-on Module

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

Price of First License
760.00 USD
RFEM 5
RF-MAT NL

Add-on Module

Consideration of nonlinear material laws

Price of First License
1,300.00 USD