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Tvorba metodiky pro výpočet zbytkových napětí svařence v programovém prostředí Salome Meca / Development of a methodology for calculating the residual stresses of a weldment in the Salome Meca software environmentBabišta, Jan January 2021 (has links)
The usage of welding in the process of manufacturing has become very widespread, mainly due to its low cost, versatility and the possibility of its automation. With its expansion comes higher demand for the possibilities of weld evaluation during the phase of design. Nowadays its possible to use tools based on finite element method for such evaluation. But the most commonly used tools are often very expensive. Therefore, the possibility of using Open-Source tool such as Salome-Meca to simulate the welding process as an alternative to commercial software was investigated. The first part of the work deals with the welding process and a description of the formation of residual stresses and deformations. It also deals with the description of the Salome-Meca software environment and the Code-Aster solver. In the next part the capabilities of the software in relation to problem of welding simulation are discussed. Furthermore, the goemetry of solved weldment, welding conditions, material properties and boundary conditions of the calculation are described. And finally, the individual solutions, their results and disadvantages of used approaches.
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Analýza vlivu geometrických odchylek polotovaru na následující proces ohýbání / Analysis of influence of geometric deviations of semifinished product on following bending processAnděl, Tomáš January 2018 (has links)
Presented diploma thesis was created in cooperation with Siemens s.r.o., and deals with the analysis of the bending of aluminium sheets which are later used as a conductors of high voltage electrical energy. These parts are completed into assemblies which serves as connectors of particular segments of an electrical network. The problem occurs as a result of incorrect bend, because it is impossible to join these sections properly. The customer would like to verify if the defined tolerances of semi-finished products are sufficient for proper bend and in case they are not, the tolerances should be modified. Due to the requirement for running numerical simulation in one of the open source software, the Salome-Meca program environment was used.
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Analyse d'erreur a posteriori pour les couplages Hydro-Mécaniques et mise en œuvre dans Code AsterMeunier, Sébastien 23 November 2007 (has links) (PDF)
Le résumé contient des caractères spéciaux
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