Nonlinear Structural Analysis Software
Structural FEM Analysis and Design
The structural analysis software RFEM 6 is the basis of a modular program family. 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.
Structural Frame & Truss Analysis Software
The structural frame analysis software RSTAB 9 has a similar range of functions as the FEA software RFEM. Due to the special attention to beam, frame, or truss structures, it is very easy to use and for many years, it has been the best choice for structural analysis and design of pure structural member models.
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).
Plastic Design
RF‑/STEEL Plasticity is an extension of the RF‑/STEEL EC3 add-on module for RFEM 5 / RSTAB 8. This allows for the plastic design of cross-sections according to the partial internal forces method (TSV) and simplex method.
Nonlinear Design of Reinforced Concrete
The RF‑CONCRETE NL add-on module for RFEM 5 performs physical and geometrical nonlinear calculation of beam and plate structures consisting of reinforced concrete. The RF CONCRETE Deflect add-on module for RFEM 5 allows for analytical deformation analysis of plate structures consisting of reinforced concrete.
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.
Contact Us
Do you have any questions about our products or which are best suited for your design projects? Contact us via phone, email, or chat or find suggested solutions and useful tips on our FAQ page available 24/7.
Differences Between the Analytical and Nonlinear Deformation Analyses 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.
- I would like to connect my masonry wall to a reinforced concrete slab. What is the best way to create a line hinge?
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
Structural engineering software for designing frame, beam, and truss structures, as well as 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 to 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
