Browsing by Author "Gult, Michal"
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- ItemHodnocení tvařitelnosti tenkých plechů při vysokých rychlostech deformace(Technická Univerzita v Liberci, 2009) Gult, Michal; Doubek, PavelBachelor thesis deals with the testing of mechanical properties of thin metal sheet under high strain-rates. Firstly in this work are measured materials mechanical properties by means of static tensile test. Then tensile test is carried out at speeds 2.5 and 2.8 m/s. The aim of this work is to evaluate the influence of strain-rate on the materials mechanical properties.
- ItemZjišťování mezních stavů deformace bezkontaktním systémem ARAMIS(Technická Univerzita v Liberci, 2012) Gult, Michal; Solfronk, PavelThis thesis deals with the determinate deformation limit states by Aramis contactless optical system. The theoretical part consists of an introduction into optical systems for the measurement of deformation. Furthermore it contains the forming limit diagrams (FLD) together with some technology tests. An experimental part of this thesis at first determines FLD according to ISO / DIS 12004-2 by means of double-action hydraulic press. As a second method for FLD determination was used device for deep-drawability determinate. The same deep-drawing steel sheet was used for both methods. The aim of the thesis is to compare the results from both used measurement methods.