Stability Analysis Software

FEM Analysis and Design of Structures

The structural analysis program RFEM is the basis of a modular software system. The main program 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.

Analysis and Design of Beam Structures

The structural frame analysis and design program RSTAB contains a similar range of functions as RFEM, with special attention to frameworks. Therefore, it is very easy to use and for many years it has been the best choice for structural analysis.

Stability Analysis According to Eigenvalue Calculation Method

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

Generation of Equivalent Geometric Imperfections and Pre-Deformed Initial Models

The RF-IMP/RSIMP add-on module creates equivalent geometric imperfections (equivalent lateral loads) or a pre-deformed initial model.

Warping Torsion Second-Order Analysis with 7 Degrees of Freedom

RF‑/STEEL Warping Torsion is an extension of the RF‑/STEEL EC3 add‑on module. It performs torsional‑flexural and lateral‑torsional buckling analysis of members according to the second‑order theory with 7 degrees of freedom and application of imperfections with regard to mode shapes.

Plate Buckling Analysis for Plates With or Without Stiffeners

The PLATE-BUCKLING stand-alone program or RF-/PLATE-BUCKLING add-on module performs plate buckling analysis of rectangular plates according to the standard EN 1993-1-5.

Knowledge Base | Stability Analysis

  1. 1 - Euler Cases

    Evaluation of Local and Global Mode Shapes Using RSBUCK for Determination of Equivalent Member Length

    When performing the stability analysis of members according to the equivalent member method, considering internal forces according to the linear static analysis, it is very important to determine the governing equivalent member lengths.

  2. 1 - Cross-Laminated Timber Wall with Openings Subjected to Wall Stress

    Stability Analysis of Two-Dimensional Structural Components on Example of Cross-Laminated Timber Wall 1

    Basically, you can design structural components made of cross‑laminated timber in the RF‑LAMINATE add‑on module. Since the design is a pure elastic stress analysis, it is necessary to additionally consider the stability issues (flexural buckling and lateral-torsional buckling).

More Articles from Knowledge Base

Contact us

Contattaci

Do you have any questions about our products? Do you need advice for your current project? 
Contact us or find various suggested solutions and useful tips on our FAQ page.

(267) 702-2815

info-us@dlubal.com

Dlubal Webinar: Advanced Steel Design According to US Standard AISC

Stability Analysis: Buckling Shapes and Imperfections with RF-STABILITY & RF-IMP

Newsletter

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

RFEM Main Program
RFEM 5.xx

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
RSTAB Main Program
RSTAB 8.xx

Main Program

The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions

Price of First License
2,550.00 USD
RFEM Steel and Aluminum Structures
RF-STEEL Warping Torsion 5.xx

Module Extension for RF-STEEL EC3

Warping torsion analysis according to the second-order theory with 7 degrees of freedom

Price of First License
850.00 USD
RFEM Other
RF-STABILITY 5.xx

Add-on Module

Stability analysis according to the eigenvalue method

Price of First License
1,030.00 USD
RSTAB Other
RSBUCK 8.xx

Add-on Module

Stability analysis according to the eigenvalue method

Price of First License
670.00 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-PLATE-BUCKLING 5.xx

Add-on Module

Plate buckling analysis of rectangular plates with or without stiffeners

Price of First License
900.00 USD