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Determination of mechanical properties of light metals and alloys and composites via small punch test
Langer, Jiří ; Dobeš, Ferdinand (referee) ; Válka, Libor (advisor)
The aim of diploma thesis is estimate mechanical properties (yield strength, maximum strength and elongation) of light alloys by means of SPT. For the experiments were selected aluminium alloys (Al 2024, Al 6082 T6, Al 7020 and NASA 398) magnesium alloys (MgZnMn, AZ31, AZ61) and composites (AZ91 + 20 % saffilu a Al + Al4C3). Theoretical part of this thesis is focused on analysis of conversion formulas, which were made from SPT data and conventional testing. Experimental part is dedicated to evaluation of experimental data and critical analysis validity of conversion formulas. In this part of thesis is discused the problematics of reproducibility methodology of SPT.
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Building insulation influence on heat consumption
Langer, Jiří ; Košner, Jan (referee) ; Hejčík, Jiří (advisor)
The aim of this work is to study heat consumption and to specify real savings of heat after applying thermal insulation. These real savings will be compared with the savings, which were theoretically quantified. Main part of this thesis studies different types of thermal insulation and ways of applying of the thermal insulation. The histogram, which shows savings from settlement units at Vinohrady, Líšeň, Kamenný vrch and Slatina is also part of the thesis. Schema, which shows tendency of correct, ordinary and incorrect thermal insulation can be also found in this work. We analyze teoretical solution of savings on street Oblá no. 56 with real measurements.
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