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.
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.
Contact us
Do you have any questions about our products or need advice on selecting the products needed for your projects?
Contact us via our free e-mail, chat, or forum support or find various suggested solutions and useful tips on our FAQ page.
![[DE] KB 001651 | Plastic Analysis with RFEM](http://img.youtube.com/vi/a_YLHwSSWQE/mqdefault.jpg)
Differences Between the Analytical and Nonlinear Deformation Analysis of Reinforced Concrete
Different methods are available for calculating the deformation in the cracked state. RFEM provides an analytical method according to DIN EN 1992-1-1 7.4.3 and a physical-nonlinear analysis.
Nonlinear Material Law for Membranes
In RFEM, there is an option to couple surfaces with the stiffness types "Membrane" and "Membrane Orthotropic" with the material models "Isotropic Nonlinear Elastic 2D/3D" and "Isotropic Plastic 2D/3D" (RF-MAT NL add-on module required).
This functionality enables the simulation of the nonlinear strain behavior of, for example, ETFE foils.
- How does the "Orthotropic Plastic" material model work in RFEM?
- What is the effect of the "Without membrane tension" stiffness type in surface properties?
- I would like to define a line support with ineffective tension and apply the tension force on this line by using a nodal support instead. Why does the line support still receive a tension force?
- Can I simulate the cracked state of a concrete cross -section for a bending beam with the "Isotropic Nonlinear Elastic 1D" material model?
- When defining my material, I get Warning No. 1136 and cannot continue working. How can I prevent this warning?
- I have edited the material in my model. When starting the calculation, I get an error message. What can be the reason for this?
- When entering a new material using the Diagram definition type, the first row is locked. How can I define the material?
- What is the difference between the materials Isotropic Plastic 1D and Isotropic Nonlinear Elastic 1D?
- I have purchased the add-on module RF-MAT NL, but I cannot find it anywhere.
- Why do I get such a small amount of reinforcement for the upstand beam? The amount of reinforcement for the downstand beams is significantly larger.
Associated Products
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
3,540.00 USD
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
2,550.00 USD
Add-on Module
Consideration of nonlinear material laws
1,300.00 USD
Module Extension for RF-STEEL EC3
Plastic design of cross-sections according the Partial Internal Forces Method (PIFM) and Simplex Method
850.00 USD
Add-on Module
Physical and geometrical nonlinear calculation of beam and plate structures consisting of reinforced concrete
1,300.00 USD
Add-on Module
Analytical deformation analysis of plate structures consisting of reinforced concrete
400.00 USD
