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Your search keyword '"GRBOVIĆ, Aleksandar M."' showing total 8 results
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8 results on '"GRBOVIĆ, Aleksandar M."'

1. Development of new optimal adapttronic airfoils, using modern engineering software packages

Author

Rašuo Boško P., Bengin Aleksandar Č., Dinulović Mirko R., and Grbović Aleksandar M.

Subjects
energy efficiency, adapttronic airfoil. modern software packages, Engineering (General). Civil engineering (General), TA1-2040
Abstract

In this paper, the possibilities of using modern adaptive adapttronic structures in the blades of wind turbine systems were analyzed in order to increase the utilization of the energy potential of the wind at the selected location of a potential farm of wind generators with a power of 2 MW each. This was achieved by using adaptive modern adaptronic airfoils that provided permanent wind shear and adjustment of local airfoil shapes along the wind turbine blade ensuring maximum energy performance of the entire turbine within the wind turbine farm as a whole.

Published
2024
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2. UAV Positioning and Navigation - Review

Author

Raković, Dragan M., Simonović, Aleksandar, Grbović, Aleksandar M., Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Mitrovic, Nenad, editor, Mladenovic, Goran, editor, and Mitrovic, Aleksandra, editor

Published
2021
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5. Simulation of crack propagation in titanium mini dental implants (MDI)

Author

Grbović Aleksandar M., Rašuo Boško P., Vidanović Nenad D., and Perić Mirjana M.

Subjects
damage, crack growth, titanium implants, mdi, fem, Engineering (General). Civil engineering (General), TA1-2040, Mechanics of engineering. Applied mechanics, TA349-359
Abstract

Developments in mini dental implants (MDI) manufacturing are aimed at making them more biocompatible and, at the same time, lighter, more durable and simultaneously safer than the existing implants. But, occasionally, during installation the failure of MDI may occur or cracks may appear, which could lead to the later failure of MDI. In order to understand and assess crack growth in titanium MDI, Finite Element (FE) software packages ANSYS v13 and FRANC3D v5 have been used. Using FRANC3D software different crack sizes and shapes have been modeled and simulations of crack propagations in three-dimensional model of MDI have been performed. Based on simulation results, the approximate fatigue life of damaged MDI was calculated.

Published
2011

6. Numerical Simulation of Crack Propagation in Seven-Wire Strand

Author

Kastratović, Gordana M., Vidanović, Nenad D., Grbović, Aleksandar M., Mirkov, Nikola S., Rašuo, Boško P., Kastratović, Gordana M., Vidanović, Nenad D., Grbović, Aleksandar M., Mirkov, Nikola S., and Rašuo, Boško P.

Abstract

This paper discusses certain aspects of numerical simulation of crack propagation in wire ropes subjected to axial loading, with the aim to explore and to demonstrate the capacity, performances and difficulties of crack propagation modeling by usage of numerical computational methods in such complex structures. For this purpose, the finite element method (FEM) was used, and 3D numerical analyses were performed in Ansys Workbench software. In order to validate and verify performed numerical modeling, crack growth rate based on calculated stress intensity factors (SIFs) along the crack fronts was obtained for the model for which experimental results could be found in the available literature. Finally, using the advanced modeling techniques, the parametric 3D model of seven-wire strand was analyzed. Conducted analysis showed that FEM could be a powerful tool for fatigue life predictions in order to reduce the need for experiments, which are still the only successful method for fatigue life estimation of wire ropes. © Springer Nature Switzerland AG 2020.

Published
2020

7. NUMERICAL EVALUATION OF THERMAL STRESSES GENERATED IN LAMINATED COMPOSITE STRUCTURE EXPOSED TO LOW TEMPERATURES.

Author

ELMILADI, Abdulrazag Abdallah, PETROVIĆ, Veljko M., GRBOVIĆ, Aleksandar M., SEDMAK, Aleksandar S., and BALAĆ, Igor M.

Subjects
COMPOSITE structures, LAMINATED materials, THERMAL stresses, LOW temperatures, FINITE element method, NUMERICAL calculations
Abstract

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 element method. A sample problem involving generated thermal stresses in a real laminated composite structure, exposed to low temperatures (four different temperature levels), is analyzed and discussed. Obtained results suggest that these thermal stresses remarkably decrease the strength of the laminated composite structure. [ABSTRACT FROM AUTHOR]

Published
2021
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8. Simulacija širenja prsline u titanijumskim mini dentalnim implantima (MDI)

Author

Grbović Aleksandar M., Rašuo Boško P., Vidanović Nenad D., and Perić Mirjana M.

Subjects
fem, lcsh:TA1-2040, titanium implants, crack growth, mdi, lcsh:Engineering (General). Civil engineering (General), lcsh:Mechanics of engineering. Applied mechanics, lcsh:TA349-359, damage
Abstract

Developments in mini dental implants (MDI) manufacturing are aimed at making them more biocompatible and, at the same time, lighter, more durable and simultaneously safer than the existing implants. But, occasionally, during installation the failure of MDI may occur or cracks may appear, which could lead to the later failure of MDI. In order to understand and assess crack growth in titanium MDI, Finite Element (FE) software packages ANSYS v13 and FRANC3D v5 have been used. Using FRANC3D software different crack sizes and shapes have been modeled and simulations of crack propagations in three-dimensional model of MDI have been performed. Based on simulation results, the approximate fatigue life of damaged MDI was calculated., Unapređenja u proizvodnji mini dentalnih implantata (MDI) su uglavnom usmerena ka povećanju njihove biokompatibilnosti i, u isto vreme, izdržljivosti i bezbednosti, ali i ka smanjenju njihovih dimenzija u odnosu na postojeće implantate. Međutim, tokom ugradnje MDI-a može doći do njegovog loma ili nastanka prsline koja kasnije može prouzrokovati lom. Da bi se analiziralo širenje prsline u titanijumskom MDI-u, korišćeni su softveri za primenu metode konačnih elemenata (MKE) ANSYS v13 i FRANC3D v5. Korišćenjem FRANC3D programa izmodelirane su prsline različitih veličina i oblika na 3D geometriji MDI-a i izvršeno je simuliranje njihovog širenja. Na osnovu rezultata simulacije izračunat je približan zamorni vek oštećenog MDI-a.

Published
2011

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