Publications by authors named "Marino Brcic"
In this paper, the characterization of 3D-printed materials that are considered in the design of multirotor unmanned aerial vehicles (UAVs) for specialized purposes was carried out. The multirotor UAV system is briefly described, primarily from the aspect of system dynamics, considering that the airframe parts connect the UAV components, including the propulsion configuration, into a functional assembly. Three additive manufacturing (AM) technologies were discussed, and a brief overview was provided of selective laser sintering (SLS), fused deposition modeling (FDM), and continuous fiber fabrication (CFF).
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- The paper investigates the impact fracture energy and fatigue resistance of two low carbon steels (1.1141 and 1.0122) through experimental tests that analyze their performance under varying temperatures and stress levels.
- *The study examines how temperature influences the Charpy impact energy and details the mechanical behavior of the materials during high-cycle fatigue tests at room temperature, incorporating multiple stress ratios (symmetric, asymmetric, and pulsating tensile).
- *Results are presented in S-N diagrams, showing the calculated fatigue limits for both steel alloys, with specific values provided for different stress ratios, indicating their endurance under applied stress.
Fused filament fabrication (FFF), as a form of additive manufacturing (AM), in recent years, has become a popular method to manufacture prototypes, as well as functional parts. FFF is an extrusion process, commonly known as 3D printing, where the object is built by depositing melted material layer by layer. The most common materials, i.
View Article and Find Full Text PDFThe article deals with the analysis of the mechanical behavior at different temperatures, uniaxial creep and uniaxial fatigue of martensitic steel X46Cr13 (1.4034, AISI 420). For the purpose of considering the aforementioned mechanical behavior, as well as determining the appropriate resistance to creep and fatigue strength levels, numerous uniaxial tests were carried out.
View Article and Find Full Text PDFThe correct choice of a material in the process of structural design is the most important task. This study deals with determining and analyzing the mechanical properties of the material, and the material resistance to short-time creep and fatigue. The material under consideration in this investigation is austenitic stainless steel X6CrNiTi18-10.
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