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Comparative analysis of notched machine parts using photoelasticity and FEM

By Jiří Bittner


The diploma thesis deals with comparative analysis of stress and strain of notched machine parts using photoelasticity and finite element method (FEM). Experimental and numerical comparative analyses were performed on three models: hook, J shaped bracket and 3-point bending beam with notch. Equivalent stresses, principal stresses and its directions were analyzed. The emphasis is given on photoelasticity, the theory and principles of photoelasticity are described in more detail. FEM analysis was performed using software ANSYS 11. The work presented includes the preparation of polariscope in the laboratory of Institute of machine and industrial design in order to use it in tutorials focused on experimental stress analysis using photoelasticity

Topics: izochromaty; finite element method (FEM); polariscope; photoelasticity; izoklíny; polariskop; isochromatics; metoda konečných prvků (MKP); isoclinics; equivalent stress; principal stress; fotoelasticimetrie; hlavní napětí; redukované napětí
Publisher: Vysoké učení technické v Brně. Fakulta strojního inženýrství
Year: 2008
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