|
| |
|
| |
|
| |
|
|
Modification of clamping part of the test machine RUMUL Cracktronic 160
Beran, Pavel ; Hutař, Pavel (referee) ; Mazal, Pavel (advisor)
This diploma thesis deals with the structural design of the chucking jaws for RUMUL Cracktronic 160 testing machine. This apparatus is used in the fatigue laboratory of Institute of Machine Design FME BUT. Simplification, speed improvement and better test sample griping are expected gains of the new clamping system. Solidworks system is used to create 3D model of the jaws. Stress analysis is created by Finite element method in ANSYS Workbench software.
|
|
|
Comparison of fatigue fracture criteria for uniaxial tension
Stolář, Jakub ; Šebek, František (referee) ; Horníková, Jana (advisor)
Bachelor’s thesis „Comparison of fatigue fracture criteria for uniaxial tension“ is focused on material fatigue and the possibilities of material service life aproximation for uniaxial tension. Research study of material fatigue and fatigue fracture criteria is stated in the first part of the thesis. In the second part, experimentally measured data are processed and application suitability of particular fatigue fracture criteria is assessed while using the research study theoretic findings.
|
|
|
Fatigue Evaluation of Aircraft Structure According to FAR Part 23 Airworthiness Standards
Čermák, Jakub ; Koštial, Rostislav (referee) ; Augustin, Petr (advisor)
This bachelor thesis deals with acceptable means of showing compliance with the FAR 23 regulation based on safe-life experimental and analytical evaluation. In the introduction the author focuses on the historical development of the regulation and follows with summarization of current requirements. The subsequent pages describes in detail the certification based on full-scale testing, component testing and structural analysis using the cumulative rule. Appendix includes examples of load spectra approved by the FAA.
|
|
|
Fatigue properties of structural steel 11 523
Kudelka, Martin ; Kohout, Jan (referee) ; Věchet, Stanislav (advisor)
This bachelor thesis studies the mechanical properties of steel 11 523 in the state after normalization annealing. Its purpose is an assessment of the structure in material and determination of static and fatigue characteristics. In the theoretical part of thesis, there is explained, how to divide and mark kinds of steel. There is also a mention about basic parameters of material and the main attention is paid to fatigue and its laws. The metallographic analysis, tensile test and the fatigue test were realized in the experimental part of thesis. Experimentally determined values were compared with data in the literature.
|
|
|
The problems of production of railway wheels
Šimčík, Vladimír ; Kubík, Roman (referee) ; Kalivoda, Milan (advisor)
The main idea of this work is especially to make clear the principle of railway wheelset technology, consisting of wheels, axle and other necessary components. Based on available information sources, BONATRANS GROUP a.s. literature, practical advices, experience and knowledge of practical issues, the problems in the manufacture of railway wheelsets and proposals for their elimination will be named.
|
|
| |
|
|
Fatigue properties of EN-AW 7020 aluminium alloy
Kuběna, Martin ; Němec, Karel (referee) ; Věchet, Stanislav (advisor)
This bachelor thesis focuses on the fatigue properties of wrought aluminum alloy EN-AW 7020. The theoretical part deals with the properties and use of aluminum alloys and metal response to cyclic loading. The experimental section is concerned with the structure of alloy EN-AW 7020 and its mechanical properties, especially fatigue characteristics. The goal is to construct S-N curves in the high- and low-cycle region and determine the fatigue endurance limit at 10^8 cycles.
|
guest ::
