RF-MAT NL Add-on Module for RFEM

Consideration of Nonlinear Material Laws

The RF-MAT NL add‑on module allows for consideration of nonlinear material behavior in RFEM.

  1. Material model - isotropic nonlinear elastic

    RF-MAT NL provides the following material models:

    Isotropic Plastic 1D/2D/3D and Isotropic Nonlinear Elastic 1D/2D/3D

    You can select three different definition types here:

    • Basic (definition of the equivalent stress under which the material plastifies)
    • Bilinear (definition of the equivalent stress and strain hardening modulus)
    • Diagram:
      • Definition of polygonal stress-strain diagram
      • Option to save / import the diagram
      • Interface with MS Excel
    Orthotropic Plastic 2D/3D (Tsai-Wu 2D/3D)

    This material model allows the definition of material properties (modulus of elasticity, shear modulus, Poisson's ratio) and ultimate strengths (tension, compression, shear) in two or three axes.

    Isotropic Masonry 2D

    It is possible to specify the limit tension stresses σx,limit and σy,limit as well as the hardening factor CH.

    Isotropic Damage 2D/3D

    This material model allows for a definition of asymmetric stress‑strain diagrams. The E modulus is calculated by Ei = (σii-1) / (εii-1) in each step of the stress-strain diagram.

Price (VAT excl.)

1,300.00 USD

Price is only valid for the software usage in United States.

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

RFEM Steel and Aluminium Structures

Add-on Module

Stress analysis of steel surfaces and members

RFEM Steel and Aluminium Structures

Add-on Module

Design of steel members according to Eurocode 3

RFEM Concrete Structures

Add-on Module

Design of reinforced concrete members and surfaces (plates, walls, planar structures, shells)

RFEM Other

Add-on Module

Stability analysis according to the eigenvalue method

RFEM Concrete Structures
EC2 for RFEM 5.xx

Module Extension for RFEM

Extension of the modules for reinforced concrete design by the Eurocode 2 design

RFEM Other
RF-IMP 5.xx

Add-on Module

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

RFEM Dynamic Analysis
RF-DYNAM Pro - Natural Vibrations  5.xx

Add-on Module

Dynamic analysis of natural frequencies and mode shapes of member, surface, and solid models

RFEM Concrete Structures
RF-CONCRETE Columns 5.xx

Add-on Module

Reinforced concrete design according to the model column method (method based on nominal curvature)

RFEM Dynamic Analysis
RF-DYNAM Pro - Equivalent Loads 5.xx

Add-on Module

Seismic and static load analysis using the multi-modal response spectrum analysis

RFEM Concrete Structures

Add-on Module

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

RFEM Timber Structures
RF-TIMBER Pro 5.xx

Add-on Module

Timber design according to Eurocode 5, SIA 265 and/or DIN 1052