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Structural integrity analysis of a cracked pressure vessel
(Institut za ispitivanje materijala, Beograd, 2021)
Stress distribution, as obtained by finite element method (FEM), and corresponding fracture mechanics parameters, have been used for the integrity assessment of a pressure vessel. Once the stress distribution is known, the ...
Analysis of SA 387 Gr. 91 welded joints crack resistance under static and impact load
(Elsevier Science Bv, Amsterdam, 2021)
This paper presents the results of experimental testing of crack resistance of specimens taken from a welded plate made of steel SA-387 Gr. 91, while taking into account different filler materials and welding procedures ...
Influence of second-phase particles on fracture behavior of PLA and advanced PLA-X material
(Elsevier Science Bv, Amsterdam, 2021)
Most widespread materials in Additive Manufacturing are PLA (PolyLactic Acid) and ABS (Acrylonitrile Butadiene Styrene), which are dissimilar materials in terms of printing abilities and mechanical properties. PLA material ...
Numerical simulation of welded joint with multiple various defects
(Institut za ispitivanje materijala, Beograd, 2021)
The paper presents continuation of extensive work on determining the behaviour of welded joints in the presence of multiple various types of defects, a problem that is not sufficiently covered by existing standards, such ...
Repair welding procedure and techno-economic analysis of burner pipe
(Institut za ispitivanje materijala, Beograd, 2021)
The selection of the electrode for repair welding is one of the activities needed before repairing machine parts. In this case, damages that have occurred in a burner pipe welded joint during manufacture or previous repair ...
Finite element analysis of spherical storage tank stress state
(Institut za ispitivanje materijala, Beograd, 2021)
In this paper, a spherical storage tank for the storage of liquefied petroleum gas is analysed. A design calculation of structural elements is performed according to valid standards and technical regulations. Seismic loads ...
Numerical Evaluation of the Elastic Properties of Carbon Fiber Reinforced Composite Material at Elevated and Lowered Temperatures
(Međunarodni Institut za nauku o sinterovanju, Beograd, 2021)
The effect of elevated and lowered temperatures on the elastic properties of carbon fiber-epoxy composite material was studied using multi-phase unit cell (MPUC) numerical model. Evaluation of the elastic properties of ...
Termodinamička analiza, modeliranje i optomizacija dinamičkog ponašanja sistema za klimatizaciju, grejanje i hlađenje u javnim objektima / Thermodynamic analysis, modeling and optimization od dynamical behavior of systems for heating, ventilation and air conditioning in public buildings
(Univerzitet u Beogradu, Mašinski fakultet, 2021)
U kontekstu povećanja efikasnosti i održivosti energetskog sektora, jedan od najznačajnijih problema predstavlja racionalizacija i optimizacija potrošnje energije u zgradama, jer oko 32% globalne potrošnje energije je u ...
Žilavost feritnog reaktorskog čelika u području prelazne temperature / Toughness of ferritic reactor steel in transition-temperature region
(Univerzitet u Beogradu, Mašinski fakultet, 2021)
Tema ove doktorske disertacije je feritni reaktorski čelik 20MnMoNi 55, konkretno njegova žilavost u području prelaznog temperaturnog režima najviše zbog njegove primene u ekstremnim uslovima, odnosno niskim temperaturama. ...
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 ...