AutoFEM Static Analysis
The main goal of static analysis is to check a structure used in machinebuilding or construction for strength.
At that, for the purposes of static analysis, it is assumed that forces applied to the structure do not change with time going on.
Most often, assessment of the static strength is carried out by way of comparing calculated strains in the structure and the yield point of the respective material. If the structure's strains do not exceed the material's yield point, this means that, with the applied loads, the system suffers only elastic deformations and the shape of the structure will be completely restored after the load disappears. Such mode of the item's functioning is most favourable in most cases.
If the structure's strains exceed the material's yield point, the deformations which the item suffers from the applied loads become irreversible and the structure will be irreversibly deformed. As a rule, under operating conditions of the item, this is inadmissible, and one should avoid such cases. (For more detail about strength theories, see the AutoFEM Analysis user manual.)
It is for such check of the structure's strength that the AutoFEM Static Analysis module is intended. It ensures the calculation of strength and strained condition for machinebuilding and construction structures directly in the AutoCAD environment. In advance, a 3D model of the system subject to calculation must be created or imported in AutoCAD. The functionality of the static analysis module permits to solve a variety of problems related to strength calculation. It has the following functional possibilities:
 take into account the geometric nonlinearity;
 determine the stressstrain state of temperature effect;
 perform calculations of contact problems;
Accounting for the influence of different types of mechanic loads such as force, pressure, linear acceleration, centripetal acceleration, and torque moment, load of bearing, hydrostatic pressure, additional mass, and rigidity (elastic base). Also, one can account for and set preliminary deformations of the structure (preliminary strained condition).
Setting window parameters for static analysis
If it is assumed that under the load a part may suffer significant displacement, one should conduct static analysis which takes into account large displacements.
The nonlinear problemsolver organizes the process of incremental loading and provides the solution of the linear system of equations at each loading step.
Setting window parameters for nonlinearity
Setting window parameters for the solution of thermal elasticity problem
As a result of solving the problem of modelling the stressed state of the structure, numerous results are available, such as:
 fields of displacements of the structure in nodes of finiteelement mesh;
 fields of strains  normal strains, shear strains, equivalent strains;
 fields of components of the stresses  normal stresses, shear stresses, equivalent stress (von Mises stress);
 energy of deformation;
 reaction forces;
 field of distribution of safety factors  factor of safety by principal stress, factor of safety by normal stress, factor of safety by equivalent stress.
This information is usually sufficient to predict the behaviour of structures and make a decision how to optimize the geometric shape of the product.
Below you can find various examples of using AutoFEM Static Analysis for solving problems of strength calculations. Verification Examples of AutoFEM Static Analysis 




































Stresses and deformations of an orthotropic plate at biaxial tension 
Thermoelasticity 





Contact problems 



Quick Start (Tutorial) on AutoFEM Static Analysis (online tutorial)
Welcome!
This lesson will help you to carry out the static strength calculation of the part with the help of the AutoFEM Analysis.
You will learn to:
create a Static Analysis study;
create a finite element mesh;
specify materials;
specify loads and restraints;
obtain calculation results in the form of colour plots.
Download tutorial video of the AutoFEM Static Analysis Module
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