Nonlinear Structural 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. Due to the special attention to frameworks, it is even easier to use.

Application of Nonlinear Material Laws

The RF-MAT NL add-on module allows the application of nonlinear material laws in RFEM.

Plastic Design of Cross-Sections

The RF-/STEEL Plasticity is an extension of the RF‑/STEEL EC3 add‑on module. It allows for plastic design of cross‑sections according to Partial Internal Forces Method or Simplex Method.

Nonlinear Analysis of Reinforced Concrete

The RF-CONCRETE NL add-on module performs physical and geometrical nonlinear calculation of beam and plate structures consisting of reinforced concrete. The RF-CONCRETE Deflect add-on module allows for analytical deformation analysis of plate structures consisting of reinforced concrete.

Knowledge Base | Nonlinear Analysis

  1. Figure 01 - Model A, B, C

    Modeling Base Plate Considering Plate Bending and Real Dowel Force Distribution (Nonlinear)

    When designing column bases, high performance anchors are often used for an anchorage. This article describes different models and their evaluation.

  2. 1 - Complete Model

    Comparison of Plastic Design (Shell Model) and Nonlinear Member Model

    The following example presents a comparison between a shell model and a simple member model performed in RFEM. In the case of the shell model, a beam is suspended within surfaces and modeled with restraints on both sides due to the boundary conditions. This is a statically indeterminate system that will form plastic hinges when overloaded. The comparison is carried out on a member model, which has the same boundary conditions as the shell model.

More Articles from Knowledge Base

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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 Other
RF-MAT NL 5.xx

Add-on Module

Consideration of nonlinear material laws

Price of First License
1,300.00 USD
RFEM Steel and Aluminum Structures
RF-STEEL Plasticity 5.xx

Module Extension for RF-STEEL EC3

Plastic design of cross-sections according the Partial Internal Forces Method (PIFM) and Simplex Method

Price of First License
850.00 USD
RFEM Concrete Structures
RF-CONCRETE NL 5.xx

Add-on Module

Physical and geometrical nonlinear calculation of beam and plate structures consisting of reinforced concrete

Price of First License
1,300.00 USD
RFEM Concrete Structures
RF-CONCRETE Deflect 5.xx

Add-on Module

Analytical deformation analysis of plate structures consisting of reinforced concrete

Price of First License
400.00 USD