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Приказ резултата 31-40 од 53
Laser Processing of Ni-Based Superalloy Surfaces Susceptible to Stress Concentration
(MDPI, Basel, 2021)
Reliable and resilient constructions are basic for ensuring the safety of various structures. The superalloys are used as constructive materials due to their superb mechanical properties and endurance. However, even these ...
Numerical evaluation of thermal stresses generated in laminated composite structure exposed to low temperatures
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2021)
This paper presents numerical calculation of thermal stresses generated in a carbon fiber-epoxy laminated composite structure which is operating at low temperatures. The thermal stress evaluation is based on the finite ...
Multidisciplinary research method for designing and selection of bio-inspired profiles in the conceptual designing stage
(Springer Heidelberg, Heidelberg, 2021)
A multidisciplinary research method was employed with the intention to create a series of bio-inspired flattened airfoils, observe their aerodynamic characteristics, and analyse their applicability to small devices or to ...
Model analysis of bucket wheel excavator SchRs 630 strength
(Pergamon-Elsevier Science Ltd, Oxford, 2021)
The possibilities of testing real constructions are often limited, especially in case of large constructions. The idea of model testing is to create a sub-scaled model in order to anticipate the behavior of the real ...
Assessment of integrity of pressure vessels for compressed air
(Institut za ispitivanje materijala, Beograd, 2021)
Fracture mechanics approach for structural integrity assessment is described in the case of pressure vessels for compressed air. The results of non-destructive testing indicated unacceptable defects on the vessels and set ...
Profili nastavnika osnovnih škola u Srbiji prema opredeljenju za nastavni model tokom pandemije COVID-19 / The Serbian primary school teachers' profiles regarding the preference for a teaching model during the COVID-19 pandemics
(Univerzitet u Novom Sadu - Pedagoški fakultet, Sombor, 2021)
Kvalitet nastavnog procesa u velikoj meri zavisi od nastavnika i njihovih kvalifikacija - uloga nastavnika je veoma značajna za uspešnu implementaciju novih nastavnih metoda. Ovaj rad je deo kvantitativne studije ispitivanja ...
Analysis of the estimated remaining service life of gas rectification columns
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2021)
Gas rectification columns are process apparatuses which are very important part of each onshore plant. Sudden failure of these types of columns causes huge daily losses, while fluid leakage can be very dangerous for the ...
Integrity assessment of ammonia storage tank by non-destructive testing
(Institut za ispitivanje materijala, Beograd, 2021)
Ammonia is a very dangerous fluid, and it is so important that its storage tanks are safe. Fusion welded joints (in further text: welded joints) are the 'weakest' location in some structures, in this case - tanks, and the ...
Carbon footprint of miscanthus biomass
(Knowledge-International Journal, 2021)
Abstract: In this paper an overview of CO2emissions from the useof biomass of fast-growing plant miscanthus are given. The aim was to analyze and calculate a carbon footprint of all operations in the life ...
Evaluation of true stress-strain diagrams for welded joints by application of Digital Image Correlation
(Pergamon-Elsevier Science Ltd, Oxford, 2021)
Digital Image Correlation (DIC) is applied to evaluate stress-strain diagrams for welded joints in two different ways. The first one is based on the measures strains along the welded joint, including all 3 zones of interest, ...