You can display the result graphically. It will be displayed in three different colors to illustrate the different levels of quality. You can edit all the values of the criteria and thus adjust them to your individual needs.
This option improves the evaluation of the FE mesh, for example to find areas with required FE mesh refinements. However, it should not replace the check of the FE mesh by an engineer.
Mr. Lex is responsible for developing products for glass structures and for quality assurance of the RFEM program. He also provides technical support for our customers.
Knowledge Base
Customer Project
Customer Project
Customer Project
Customer Project
The results of solid stresses can be displayed as colored 3D points in the finite elements.
If the check box 'Number of load increments' is deactivated, the number of load increments will be determined automatically in RFEM to solve nonlinear tasks efficiently.
The method used is based on a heuristic algorithm.
With this function, it is possible to refine the FE mesh on surfaces automatically. The mesh refinement is gradual. In each step, the FE mesh is recreated based on an error comparison of the results in the previous calculation step. The numerical error is evaluated from the results of surface elements and is based on the energy formulation of Zienkiewicz-Zhu.
The error evaluation is carried out for a linear static analysis. We select a load case (or load combination) for which the FE mesh is generated. The FE mesh is then used for all calculations.
The Base Data dialog box includes a wide range of standards and the option to create combinations automatically. The following standards are available:
EN 1990:2002
EN 1990 + EN 1995:2004 (Timber)
EN 1990 + EN 1991-2; Road bridges
EN 1990 + EN 1991-3; Cranes
EN 1990 + EN 1997 
to DIN 1055-100:2001-03
DIN 1055-100 + DIN 1052:2004-08 (timber)
DIN 1055-100 + DIN 18008 (Glass)
DIN 1052 (simplified) (timber)
DIN 18800:1990 
ASCE 7‑10
ASCE 7-10 NDS (Wood)
ACI 318-14
IBC 2015 
CAN/CSA S 16.1-94:1994
NBCC: 2005 
NBR 8681 
IS 800:2007 
SIA 260:2003
SIA 260 + SIA 265:2003 (timber) 
BS 5950-1:2000 
GB 50009-2012 
CTE DB-SE For the European standards (EC), the following National Annexes are available:
DIN EN 1990/NA:2009-05 (Germany) 
NBN EN 1990 - ANB: 2005 (Belgium) 
BDS EN 1990:2003/NA:2008 (Bulgaria) 
DK EN 1990/NA:2007-07 (Denmark) 
SFS EN 1990/NA:2005 (Finland) 
NF EN 1990/NA:2005/12 (France) 
ELOT EN 1990:2009 (Greece) 
UNI EN 1990/NA:2007-07 (Italy) 
IS EN 1990:2002 + NA:2010 (Ireland) 
LVS EN 1990:2003/NA:2010 (Latvia) 
LST EN 1990/NA:2010-11 (Lithuania) 
LU EN 1990/NA:2011-09 (Luxembourg) 
MS EN 1990:2010 (Malaysia) 
NEN EN 1990/NA:2006 (Netherlands) 
ÖNORM EN 1990:2007-02 (Austria) 
NP EN 1990:2009 (Portugal) 
PN EN 1990/NA:2004 (Poland) 
SR EN 1990/NA:2006-10 (Romania) 
SIST EN 1990: 2004/A1:2005 (Slovenia) 
SS EN 1990:2008 (Singapore) 
SS EN 1990/BFS 2010:28 (Sweden) 
STN EN 1990/NA:2009-08 (Slovakia)
UNE EN 1990 2003 (Spain) 
CSN EN 1990/NA:2004-03 (Czech Republic)
BS EN 1990/NA:2004-12 (the United Kingdom) 
TKP EN 1990/NA:2011 (Belarus) 
CYS EN 1990:2002 (Cyprus) 
Main Program
The new generation of 3D FEA software is used for the structural analysis of members, surfaces, and solids.
Add-On
The Nonlinear Material Behavior add-on allows you to consider material nonlinearities in RFEM for example, isotropic plastic, orthotropic plastic, isotropic damage).
Add-On
The Structure Stability add-on performs stability analysis of structures. It determines critical load factors and the corresponding stability modes.
Add-On
The Construction Stages Analysis (CSA) add-on allows for considering the construction process of structures (member, surface, and solid structures) in RFEM.
Add-On
The Time-Dependent Analysis (TDA) add-on allows you to consider the time-dependent material behavior of members. The long-term effects, such as creep, shrinkage, and aging, can influence the distribution of internal forces, depending on the structure.
Add-On
The Form-Finding add-on finds the optimal shape of members subjected to axial forces and tension-loaded surface models. The shape is determined by the equilibrium between the member axial force or the membrane stress and the existing boundary conditions.
Add-On
In RFEM, the Geotechnical Analysis add-on uses properties from soil samples to determine the soil body to be analyzed. The accurate determination of soil conditions significantly affects the quality of the structural analysis of buildings.
Add-On
The Building Model add-on for RFEM allows you to define and manipulate a building using stories. The stories can be adjusted in many ways afterwards. The information about stories and the entire model (center of gravity) is displayed in tables and graphics.
Add-On
The two-part Optimization & Costs / CO2 Emission Estimation add-on finds suitable parameters for parameterized models and blocks via the artificial intelligence (AI) technique of particle swarm optimization (PSO) for compliance with common optimization criteria. Furthermore, this add-on estimates the model costs or CO2 emissions by specifying unit costs or emissions per material definition for the structural model.
Add-On
The Multilayer Surfaces add-on allows you to define multilayer surface structures. The calculation can be carried out with or without the shear coupling.
Add-On
The Stress-Strain Analysis add-on performs general stress analysis by calculating the existing stresses and comparing them with the limit stresses.
Add-On
The Concrete Design add-on allows for various design checks according to international standards. You can design members, surfaces, and columns, as well as perform punching and deformation analyses.
Add-On
The Steel Design add-on performs the ultimate and serviceability limit state design checks of steel members according to various standards.
Add-On
The Timber Design add-on performs the ultimate, serviceability, and fire resistance limit state design checks of timber members according to various standards.
Add-On
The Masonry Design add-on for RFEM allows you to design masonry using the finite element method. It was developed as part of the research project titled DDMaS – Digitizing the Design of Masonry Structures. The material model represents the nonlinear behavior of the brick-mortar combination in the form of macro-modeling.
Add-On
The Aluminum Design add-on performs the ultimate and serviceability limit state design checks of aluminum members according to various standards.
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Add-On
The Steel Joints add-on for RFEM allows you to analyze steel connections using an FE model. The FE model is generated automatically in the background and can be controlled via the simple and familiar input of components.
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