RESULTS OF TESTING AND ASSESSMENT OF THE POSSIBILITY OF BUILDING A SYSTEM OF SPECIALIZED SOLUTIONS FOR STRENGTH ANALYSISBASED ON CAE FIDESYS

The possibility of constructing a system of specialized solutions for strength analysis based on CAE Fidesys is considered. The results of testing CAE Fidesys are presented. The finite element method and the spectral element method implemented in CAE Fidesys are discussed for the problems of mechanics of a deformable solid. The  opinion is expressed that at this stage of the development of CAE  Fidesys it can be used as an alternative CAE for carrying out control  calculations, especially when solving non-typical tasks, in the  solution of which there is a need to modify and adjust the main  computational algorithms incorporated in the software. As a part of  CAE Fidesys all the necessary elements are provided to ensure the  effectiveness of its application - a preprocessor that provides the generation of finite element models, a modular processor for solving linear and nonlinear static and dynamic problems, buckling  problems, estimation effective properties of composite materials,  contact problems, postprocessor for visualization and processing of  results. The results of testing CAE Fidesys are presented in  comparison with the results obtained in ANSYS. The main purpose of the testing was to evaluate the possibilities of CAE Fidesys in terms of: importing geometry from CAD systems; the effectiveness of finite element mesh generator; determination of the stressstrain state of assemblies with a variable contact zone; solving dynamic problems,  including modal and harmonic analysis. Testing of CAE Fidesys was  performed on test cases representing the problems which are  frequently faced in practical work. It is noted that the distinctive  feature of CAE Fidesуs is the highorder spectral elements allowing  one, in some cases, increase the accuracy of calculation without  rebuilding the finite element mesh. It is noted that a comparative analysis of the calculations done on the models with similar finite  element meshes conducted in CAE Fidesуs and ANSYS shows good  coincidence of the results. The conclusion is that CAE Fidesуs can be  used for solving different problems of structural analysis in addition  to another CAE software available on the enterprise, and also taking  into account the practical needs of active users, it can be considered, when combined with the user’s requirements, as the basis of an  industrial solution for a structural analysis.

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