TY  - JOUR
AU  - Jevtić, Ivana
AU  - Mladenović, Goran
AU  - Milovanović, Aleksa
AU  - Trajković, Isaak
AU  - Đurković, Marija
AU  - Korolija, Nenad
AU  - Milošević, Miloš
PY  - 2024
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/1519
AB  - This article aims to investigate the mechanical characteristics of specimens fabricated using Selective Laser Sintering technology. The research covers flexural specimens, produced by PA12 materials. CAD model dimensions were selected according to the ISO 178 standard, and the chosen specimen geometry is 96 x 8 x 4 [mm] in bulk. All specimens were produced using a specialized machine Fuse 1 (FormLabs, Summerville, MA). Four specimen batches were produced, each with a different printing orientation (i.e. vertical and horizontal) and location on the printing plate (i.e. in the middle and on the edge of the powder bed). The specimens are tested using a Shimadzu universal machine for testing the mechanical characteristics of materials, AGS-X 100 kN, with a unique additional tool for testing 3-point bending specimens.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - The Influence of Printing Orientation on the Flexural Strength of PA 12 Specimens Produced by SLS
EP  - 57
IS  - 1
SP  - 45
VL  - 56
DO  - 10.2298/SOS230508031J
UR  - conv_1785
ER  - 

@article{
author = "Jevtić, Ivana and Mladenović, Goran and Milovanović, Aleksa and Trajković, Isaak and Đurković, Marija and Korolija, Nenad and Milošević, Miloš",
year = "2024",
abstract = "This article aims to investigate the mechanical characteristics of specimens fabricated using Selective Laser Sintering technology. The research covers flexural specimens, produced by PA12 materials. CAD model dimensions were selected according to the ISO 178 standard, and the chosen specimen geometry is 96 x 8 x 4 [mm] in bulk. All specimens were produced using a specialized machine Fuse 1 (FormLabs, Summerville, MA). Four specimen batches were produced, each with a different printing orientation (i.e. vertical and horizontal) and location on the printing plate (i.e. in the middle and on the edge of the powder bed). The specimens are tested using a Shimadzu universal machine for testing the mechanical characteristics of materials, AGS-X 100 kN, with a unique additional tool for testing 3-point bending specimens.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "The Influence of Printing Orientation on the Flexural Strength of PA 12 Specimens Produced by SLS",
pages = "57-45",
number = "1",
volume = "56",
doi = "10.2298/SOS230508031J",
url = "conv_1785"
}

Jevtić, I., Mladenović, G., Milovanović, A., Trajković, I., Đurković, M., Korolija, N.,& Milošević, M.. (2024). The Influence of Printing Orientation on the Flexural Strength of PA 12 Specimens Produced by SLS. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 56(1), 45-57.
https://doi.org/10.2298/SOS230508031J
conv_1785

Jevtić I, Mladenović G, Milovanović A, Trajković I, Đurković M, Korolija N, Milošević M. The Influence of Printing Orientation on the Flexural Strength of PA 12 Specimens Produced by SLS. in Science of Sintering. 2024;56(1):45-57.
doi:10.2298/SOS230508031J
conv_1785 .

Jevtić, Ivana, Mladenović, Goran, Milovanović, Aleksa, Trajković, Isaak, Đurković, Marija, Korolija, Nenad, Milošević, Miloš, "The Influence of Printing Orientation on the Flexural Strength of PA 12 Specimens Produced by SLS" in Science of Sintering, 56, no. 1 (2024):45-57,
https://doi.org/10.2298/SOS230508031J .,
conv_1785 .

TY  - JOUR
AU  - Mihailović, Vladislava
AU  - Mirić-Milosavljević, Mira
AU  - Đurković, Marija
AU  - Mladenović, Goran
AU  - Milošević, Miloš
AU  - Trajković, Isaak
PY  - 2022
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/1345
AB  - Distributions of the modulus of elasticity (MOE) and modulus of rupture (MOR) were characterized at three loading rates for small clear beech specimens in static bending. The correlation between MOE and MOR for all three loading rates was significant, but it weakened with increasing load rates. The analysis of the characteristics of empirical distributions, as well as the preliminary selection of the theoretical distributions for MOE and MOR, were performed on the basis of L-moments and L-moment diagrams. According to the standard for testing small specimens, MOE and MOR are determined as the arithmetic mean of the sample. Usage of the arithmetic mean is justified when the analyzed quantity is symmetrically distributed. It was found that the distribution of MOE and MOR is not always symmetric. The loading rate influences the shapes of the MOE and MOR empirical distributions, and consequently the choice of theoretical distribution. The general extreme value distribution stood out as the best one for both MOE and MOR, regardless of the loading rate, and the second overall ranked distribution is the three-parameter Weibull distribution. The loading rate affected the value of the fifth percentile in MOR, when determined from both the empirical and theoretical distributions.
T2  - BioResources
T1  - Loading Rate Effects on MOE and MOR Distributions in Testing of Small Clear Beech Wood Specimens
EP  - 1835
IS  - 1
SP  - 1818
VL  - 17
DO  - 10.15376/biores.17.1.1818-1835
UR  - conv_1617
ER  - 

@article{
author = "Mihailović, Vladislava and Mirić-Milosavljević, Mira and Đurković, Marija and Mladenović, Goran and Milošević, Miloš and Trajković, Isaak",
year = "2022",
abstract = "Distributions of the modulus of elasticity (MOE) and modulus of rupture (MOR) were characterized at three loading rates for small clear beech specimens in static bending. The correlation between MOE and MOR for all three loading rates was significant, but it weakened with increasing load rates. The analysis of the characteristics of empirical distributions, as well as the preliminary selection of the theoretical distributions for MOE and MOR, were performed on the basis of L-moments and L-moment diagrams. According to the standard for testing small specimens, MOE and MOR are determined as the arithmetic mean of the sample. Usage of the arithmetic mean is justified when the analyzed quantity is symmetrically distributed. It was found that the distribution of MOE and MOR is not always symmetric. The loading rate influences the shapes of the MOE and MOR empirical distributions, and consequently the choice of theoretical distribution. The general extreme value distribution stood out as the best one for both MOE and MOR, regardless of the loading rate, and the second overall ranked distribution is the three-parameter Weibull distribution. The loading rate affected the value of the fifth percentile in MOR, when determined from both the empirical and theoretical distributions.",
journal = "BioResources",
title = "Loading Rate Effects on MOE and MOR Distributions in Testing of Small Clear Beech Wood Specimens",
pages = "1835-1818",
number = "1",
volume = "17",
doi = "10.15376/biores.17.1.1818-1835",
url = "conv_1617"
}

Mihailović, V., Mirić-Milosavljević, M., Đurković, M., Mladenović, G., Milošević, M.,& Trajković, I.. (2022). Loading Rate Effects on MOE and MOR Distributions in Testing of Small Clear Beech Wood Specimens. in BioResources, 17(1), 1818-1835.
https://doi.org/10.15376/biores.17.1.1818-1835
conv_1617

Mihailović V, Mirić-Milosavljević M, Đurković M, Mladenović G, Milošević M, Trajković I. Loading Rate Effects on MOE and MOR Distributions in Testing of Small Clear Beech Wood Specimens. in BioResources. 2022;17(1):1818-1835.
doi:10.15376/biores.17.1.1818-1835
conv_1617 .

Mihailović, Vladislava, Mirić-Milosavljević, Mira, Đurković, Marija, Mladenović, Goran, Milošević, Miloš, Trajković, Isaak, "Loading Rate Effects on MOE and MOR Distributions in Testing of Small Clear Beech Wood Specimens" in BioResources, 17, no. 1 (2022):1818-1835,
https://doi.org/10.15376/biores.17.1.1818-1835 .,
conv_1617 .

TY  - JOUR
AU  - Đurković, Marija
AU  - Mladenović, Goran
AU  - Tanović, Ljubodrag
AU  - Danon, Gradimir
PY  - 2018
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/912
AB  - The paper presents the results of investigations performed in the peripheral milling of oak wood (Quercus robur), where the impact of cutting regime elements and tool geometry on the cutting force is analyzed. A large-scale experiment was conducted to implement the obtained results in developing a reliable analytical and simulation model for analyzing and predicting the cutting forces, depending on the feed rate, the milling depth and the tool rake angle. The generated mathematical model is adequate and describes accurately enough the dependence of the cutting forces upon the selected impact factors in the adopted test conditions. The evaluation of the model parameters significance indicates a significant impact of feed rate and milling depth, whereas tool rake angle does not show any significant impact in this case. The developed mathematical model can be employed in manufacturing conditions as an indicator of wood and wood-based materials machinability.
T2  - Maderas-Ciencia Y Tecnologia
T1  - Impact of feed rate, milling depth and tool rake angle in peripheral milling of oak wood on the cutting force
EP  - 34
IS  - 1
SP  - 25
VL  - 20
DO  - 10.4067/S0718-221X2018005001301
UR  - conv_1347
ER  - 

@article{
author = "Đurković, Marija and Mladenović, Goran and Tanović, Ljubodrag and Danon, Gradimir",
year = "2018",
abstract = "The paper presents the results of investigations performed in the peripheral milling of oak wood (Quercus robur), where the impact of cutting regime elements and tool geometry on the cutting force is analyzed. A large-scale experiment was conducted to implement the obtained results in developing a reliable analytical and simulation model for analyzing and predicting the cutting forces, depending on the feed rate, the milling depth and the tool rake angle. The generated mathematical model is adequate and describes accurately enough the dependence of the cutting forces upon the selected impact factors in the adopted test conditions. The evaluation of the model parameters significance indicates a significant impact of feed rate and milling depth, whereas tool rake angle does not show any significant impact in this case. The developed mathematical model can be employed in manufacturing conditions as an indicator of wood and wood-based materials machinability.",
journal = "Maderas-Ciencia Y Tecnologia",
title = "Impact of feed rate, milling depth and tool rake angle in peripheral milling of oak wood on the cutting force",
pages = "34-25",
number = "1",
volume = "20",
doi = "10.4067/S0718-221X2018005001301",
url = "conv_1347"
}

Đurković, M., Mladenović, G., Tanović, L.,& Danon, G.. (2018). Impact of feed rate, milling depth and tool rake angle in peripheral milling of oak wood on the cutting force. in Maderas-Ciencia Y Tecnologia, 20(1), 25-34.
https://doi.org/10.4067/S0718-221X2018005001301
conv_1347

Đurković M, Mladenović G, Tanović L, Danon G. Impact of feed rate, milling depth and tool rake angle in peripheral milling of oak wood on the cutting force. in Maderas-Ciencia Y Tecnologia. 2018;20(1):25-34.
doi:10.4067/S0718-221X2018005001301
conv_1347 .

Đurković, Marija, Mladenović, Goran, Tanović, Ljubodrag, Danon, Gradimir, "Impact of feed rate, milling depth and tool rake angle in peripheral milling of oak wood on the cutting force" in Maderas-Ciencia Y Tecnologia, 20, no. 1 (2018):25-34,
https://doi.org/10.4067/S0718-221X2018005001301 .,
conv_1347 .