Category:Tutorials
This Category contains Tutorials examples. Although the following tutorials are created using COSSANX and tutorials are also available in OpenCossan. The following list shows the tutorials grouped according to the area of applicability.
COSSANX and OpenCossan
ID  Name 
Description 
Solver  Analysis type  Preview 

1  Cantilever Beam 
A cantilever beam is loaded at the end by a concentrated point load. All uncertainties are modelled mathematically by random variables. These random variables are characterized by its probability density function or alternatively by the cumulative probability function. The aim of the tutorial is to preform Uncertainty Quantification, Reliability Analysis and Sensitivity Analysis. 

 
2  Beam 3point bending 
This example considers a beam in three points bending. It will be studied using several thirdparty Finite Element software and various toolboxes from COSSANX. 
, , , FEAP , 


3  Infection Dynamic Model 
This example shows how to perform the sensitivity analysis of a mathematical model representing an infective process at its early stafe, where we assume that the infection is propagated through some kind of contact between individuals who do not take any precaution to avoid contgion. The first order and the total effect sensitivity indices of the input factors of the mathematical model are estimated, 


4  Bike Frame 
This tutorial shows how to perform uncertainty quantification and reliability analysis using a third party software. The finite element solver Ansys is used.

*Reliability Analysis


5  Truss Bridge Structure  This example shows how to use the modebased metamodel using a truss structure. The eigenvalues, eigenvectors and in the sequence the FRFs are approximated using the metamodel and compared to the extract solution computed in Matlab. 


6  Bridge Model 
This tutorial presents the application of the global sensitivity analysis approach to a practical problem in structural engineering, a mechanical model 
Dynamic Analysis Global Sensitivity Analysis 

7  Parallel System  This example analyze a system composed by parallel components. The example is inspired by the Example # 5 (pag.271) from the paper: "A benchmark study on importance sampling techniques in structural reliability" S.Engelung and R. Rackwitz. Structural Safety, 12 (1993). 
System Reliability Analysis  
8  Antenna Tower 
This example show a robust design optimization of an antenna towerlike truss structure. The optimization constraints are based on a designbysixsigma approach. 
Robust Design 
 
9  Turbine Blade 
A turbine blade is modeled within NASTRAN and ABAQUS (~12,000 DOFs). The model, which consists of three parts (lower, middle and upper sections) is fixed at the bottom nodes. A vertical acceleration is applied in order to see the effects of the centrifugal forces due to the rotation. The uncertainties in the Young's modulus are modeled using independent normal RV's, where the different portions of the structure are modeled using different materials. SFEM analysis is performed using different approaches. 
Nastran Abaqus 


10  Building 
A building consisting of 1D (columns), 2D (floors and stairs) and 3D (soil) is modelled. Both NASTRAN and ABAQUS solvers are used to analyse the structure within SFEM analysis. 
Nastran Abaqus 


11  Small Satellite 
A satellite model is constructed in PATRAN (~5000 DOFs). The structure consists of horizontal and vertical panels attached to the central cylinder and a nozzle (modelled with 2D shell elements). 
Nastran 


12  Cargo Crane 
3D model of lightservice cargo craneDynamic drop load. A stochastic transient analysis in Abaqus and the timedependent response of one node is extracted. 
Abaqus 


13  Ishigami_Function 
Connection to third party solver that execute the ishigami function 
user defined solver 

Patran Plugin
Name 
Description 
Solver  Analysis type  Preview 

Cantilever Plate (Patran Plugin)  A cantilever plate simply fixed in all DOFs at one side and transversely loaded on the other side, is here analysed. It is assumed that the plate consists of two different parts, one is made from steel, while the other part is made from aluminum.  Nastran 


12Storey Building (Patran Plugin)  In this analysis, a building model consisting of 12 floors will be analysed, for which the FE model is constructed in PATRAN. The floors and walls are modelled with CQUAD shell elements, while the girders have been modelled using BEAM elements. A static loading, as well as the self weight of the building have been considered as Boundary conditions, while the building has been fixed at the bottom nodes of the elements, which model the foundation.  Nastran 


Turbine Blade (Patran Plugin) 
A turbine blade is modelled within PATRAN. The model, which consists of three parts (lower, middle and upper sections) is fixed at the bottom nodes. A vertical acceleration is applied in order to see the effects of the centrifugal forces due to the rotation. The uncertainties in the Young's modulus are modelled using random fields. DMCS analysis is performed for different correlation lengths in order to observe the effect of this parameter on the variation of the stresses and displacement of the structure. 
Nastran 

Dynamics
 Baumechanik building in Matlab (MB)
 FE example to be added (BG) (with Random Field)
 Plate Box ? (BG)
See Also
Subcategories
This category has the following 3 subcategories, out of 3 total.
Pages in category "Tutorials"
The following 60 pages are in this category, out of 60 total.