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Computational prediction of material damage in forming
Kunc, Vítězslav ; Hůlka, Jiří (referee) ; Petruška, Jindřich (advisor)
The purpose of this thesis is to deal with the initiation of chevron cracks in forward extrusion. Using numerical simulation, the ability of selected fracture models which prognosticates the initiation of chevron cracks is observed. The influence of process parameters is studied (friction, reductions in cross section and angles of reduction) on the initiation and diffusion of damage. Solutions was executed by Abaqus for material 12 050.
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Part manufacturing by roll bending
Kunc, Vítězslav ; Císařová, Michaela (referee) ; Podaný, Kamil (advisor)
The project is elaborated within the frame of bachelor studies of Mechanical Engineering. It supposes review of modern roll bending methods. In this literary study are summarized individual progressive methods, machines used for machining of roll bended parts and parts, which are by these methods made.
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Computational prediction of material damage in forming
Kunc, Vítězslav ; Hůlka, Jiří (referee) ; Petruška, Jindřich (advisor)
The purpose of this thesis is to deal with the initiation of chevron cracks in forward extrusion. Using numerical simulation, the ability of selected fracture models which prognosticates the initiation of chevron cracks is observed. The influence of process parameters is studied (friction, reductions in cross section and angles of reduction) on the initiation and diffusion of damage. Solutions was executed by Abaqus for material 12 050.
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Part manufacturing by roll bending
Kunc, Vítězslav ; Císařová, Michaela (referee) ; Podaný, Kamil (advisor)
The project is elaborated within the frame of bachelor studies of Mechanical Engineering. It supposes review of modern roll bending methods. In this literary study are summarized individual progressive methods, machines used for machining of roll bended parts and parts, which are by these methods made.
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