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Effect of strain rate on the mechanical properties of materials
Gajdošík, Matej ; Forejt, Milan (oponent) ; Jopek, Miroslav (vedoucí práce)
Taylor Anvil Test method is used for the investigation of material properties under dynamic loading conditions. The thesis presents a complete process of development, assembly, and testing of a new testing apparatus aimed at achieving a symmetric impact of two material samples in motion. The device is tested in two configurations, results of both are described. Material tests of spruce wood were conducted and compared to results obtained from the classic Taylor canon. Substantial differences are observed and described. Conducted simulations of symmetric impact utilizing the spruce material model have not proven to represent practical experiments, hinting at required changes to the model.
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Damascus steel production
Gajdošík, Matej ; Harant, Martin (oponent) ; Podaný, Kamil (vedoucí práce)
Bachelor thesis deals with production of Damascus steel. Literary pursuit deals with methods of production, with closer elaboration of free forging technology, suitable material properties and work procedures during forging and etched specimen preparation. In the practical part of the work, production of two forged pieces consisting of 15n20, 80CrV2 and 1095 steels was documented. Subsequently an etched specimen was prepared to assess the success of the experiment. Finally, a knife was made from the selected forged piece.
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Damascus steel production
Gajdošík, Matej ; Harant, Martin (oponent) ; Podaný, Kamil (vedoucí práce)
Bachelor thesis deals with production of Damascus steel. Literary pursuit deals with methods of production, with closer elaboration of free forging technology, suitable material properties and work procedures during forging and etched specimen preparation. In the practical part of the work, production of two forged pieces consisting of 15n20, 80CrV2 and 1095 steels was documented. Subsequently an etched specimen was prepared to assess the success of the experiment. Finally, a knife was made from the selected forged piece.
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