TY  - JOUR
AU  - Stajčić, Ivana
AU  - Stajčić, Aleksandar
AU  - Serpa, Cristina
AU  - Vasiljević-Radović, Dana
AU  - Randjelović, Branislav
AU  - Radojević, Vesna
AU  - Fecht, Hans
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5571
AB  - Polymers and polymer matrix composites are commonly used materials with applications extending from packaging materials to delicate electronic devices. Epoxy resins and fiber-reinforced epoxy-based composites have been used as adhesives and construction parts. Fractal analysis has been recognized in materials science as a valuable tool for the microstructural characterization of composites by connecting fractal characteristics with composites’ functional properties. In this study, fractal reconstructions of different microstructural shapes in an epoxy-based composite were performed on field emission scanning electron microscopy (FESEM) images. These images were of glass fiber reinforced epoxy as well as a hybrid composite containing both glass and electrospun polystyrene fibers in an epoxy matrix. Fractal reconstruction enables the identification of self-similarity in the fractal structure, which represents a novelty in analyzing the fractal properties of materials. Fractal Real Finder software, based on the mathematical affine fractal regression model, was employed to reconstruct different microstructure shapes and calculate fractal dimensions to develop a method of predicting the optimal structure–property relations in composite materials in the future.
PB  - MDPI
T2  - Fractal and Fractional
T1  - Microstructure of Epoxy-Based Composites: Fractal Nature Analysis
VL  - 6
IS  - 12
SP  - 741
DO  - 10.3390/fractalfract6120741
ER  - 

@article{
author = "Stajčić, Ivana and Stajčić, Aleksandar and Serpa, Cristina and Vasiljević-Radović, Dana and Randjelović, Branislav and Radojević, Vesna and Fecht, Hans",
year = "2022",
abstract = "Polymers and polymer matrix composites are commonly used materials with applications extending from packaging materials to delicate electronic devices. Epoxy resins and fiber-reinforced epoxy-based composites have been used as adhesives and construction parts. Fractal analysis has been recognized in materials science as a valuable tool for the microstructural characterization of composites by connecting fractal characteristics with composites’ functional properties. In this study, fractal reconstructions of different microstructural shapes in an epoxy-based composite were performed on field emission scanning electron microscopy (FESEM) images. These images were of glass fiber reinforced epoxy as well as a hybrid composite containing both glass and electrospun polystyrene fibers in an epoxy matrix. Fractal reconstruction enables the identification of self-similarity in the fractal structure, which represents a novelty in analyzing the fractal properties of materials. Fractal Real Finder software, based on the mathematical affine fractal regression model, was employed to reconstruct different microstructure shapes and calculate fractal dimensions to develop a method of predicting the optimal structure–property relations in composite materials in the future.",
publisher = "MDPI",
journal = "Fractal and Fractional",
title = "Microstructure of Epoxy-Based Composites: Fractal Nature Analysis",
volume = "6",
number = "12",
pages = "741",
doi = "10.3390/fractalfract6120741"
}

Stajčić, I., Stajčić, A., Serpa, C., Vasiljević-Radović, D., Randjelović, B., Radojević, V.,& Fecht, H.. (2022). Microstructure of Epoxy-Based Composites: Fractal Nature Analysis. in Fractal and Fractional
MDPI., 6(12), 741.
https://doi.org/10.3390/fractalfract6120741

Stajčić I, Stajčić A, Serpa C, Vasiljević-Radović D, Randjelović B, Radojević V, Fecht H. Microstructure of Epoxy-Based Composites: Fractal Nature Analysis. in Fractal and Fractional. 2022;6(12):741.
doi:10.3390/fractalfract6120741 .

Stajčić, Ivana, Stajčić, Aleksandar, Serpa, Cristina, Vasiljević-Radović, Dana, Randjelović, Branislav, Radojević, Vesna, Fecht, Hans, "Microstructure of Epoxy-Based Composites: Fractal Nature Analysis" in Fractal and Fractional, 6, no. 12 (2022):741,
https://doi.org/10.3390/fractalfract6120741 . .

TY  - CONF
AU  - Stajčić, Aleksandar
AU  - Mitić, Vojislav
AU  - Serpa, Cristina
AU  - Randjelović, Branislav
AU  - Radović, Ivana
PY  - 2021
UR  - https://www.etran.rs/2021/en/proceedings/
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4925
AB  - Polymer matrix composites (PMCs) are very attractive materials due to a possibility to achieve versatile properties by combining with ceramic or metal reinforcement in different shapes and sizes. As a result, PMCs have found application in nearly every field, from household appliances to aerospace industry. Modern microelectronic devices contain conductive polymers with fillers that enhance their electrical properties. In addition, PMCs are being used as insulators and adhesives, contributing to the long life of electronic devices. Epoxy resins are the most commonly used insulators and adhesives. In order to improve their fracture toughness, glass fibers can be used as an efficient reinforcement. However, with the purpose of designing a composite with good mechanical properties and durability, deep knowledge of microstructure is required. In addition, microstructural analysis can be used to connect shape and size of pores or reinforcement with various physical properties. Fractal nature analysis is a valuable mathematical tool that can be employed for different shapes and forms rendering. In this manner, successful design and prediction of composite’s properties could be obtained. In this research, field emission scanning electron microscopy (FESEM) images were used for fractal analysis of glass fibers, with the aim of reconstructing the shape.
PB  - Belgrade: ETRAN – Society for electronics, telecommunication, computing, automatics and nuclear angineering
C3  - Proceedings - 8th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2021 and 65th National Conference on Electrоnics, Telecommunication, Computing, Automatic Control and Nuclear Engineering ETRAN 2020
T1  - Reconstruction of fiber reinforcement in epoxy-based composite
UR  - https://hdl.handle.net/21.15107/rcub_cer_4925
ER  - 

@conference{
author = "Stajčić, Aleksandar and Mitić, Vojislav and Serpa, Cristina and Randjelović, Branislav and Radović, Ivana",
year = "2021",
abstract = "Polymer matrix composites (PMCs) are very attractive materials due to a possibility to achieve versatile properties by combining with ceramic or metal reinforcement in different shapes and sizes. As a result, PMCs have found application in nearly every field, from household appliances to aerospace industry. Modern microelectronic devices contain conductive polymers with fillers that enhance their electrical properties. In addition, PMCs are being used as insulators and adhesives, contributing to the long life of electronic devices. Epoxy resins are the most commonly used insulators and adhesives. In order to improve their fracture toughness, glass fibers can be used as an efficient reinforcement. However, with the purpose of designing a composite with good mechanical properties and durability, deep knowledge of microstructure is required. In addition, microstructural analysis can be used to connect shape and size of pores or reinforcement with various physical properties. Fractal nature analysis is a valuable mathematical tool that can be employed for different shapes and forms rendering. In this manner, successful design and prediction of composite’s properties could be obtained. In this research, field emission scanning electron microscopy (FESEM) images were used for fractal analysis of glass fibers, with the aim of reconstructing the shape.",
publisher = "Belgrade: ETRAN – Society for electronics, telecommunication, computing, automatics and nuclear angineering",
journal = "Proceedings - 8th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2021 and 65th National Conference on Electrоnics, Telecommunication, Computing, Automatic Control and Nuclear Engineering ETRAN 2020",
title = "Reconstruction of fiber reinforcement in epoxy-based composite",
url = "https://hdl.handle.net/21.15107/rcub_cer_4925"
}

Stajčić, A., Mitić, V., Serpa, C., Randjelović, B.,& Radović, I.. (2021). Reconstruction of fiber reinforcement in epoxy-based composite. in Proceedings - 8th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2021 and 65th National Conference on Electrоnics, Telecommunication, Computing, Automatic Control and Nuclear Engineering ETRAN 2020
Belgrade: ETRAN – Society for electronics, telecommunication, computing, automatics and nuclear angineering..
https://hdl.handle.net/21.15107/rcub_cer_4925

Stajčić A, Mitić V, Serpa C, Randjelović B, Radović I. Reconstruction of fiber reinforcement in epoxy-based composite. in Proceedings - 8th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2021 and 65th National Conference on Electrоnics, Telecommunication, Computing, Automatic Control and Nuclear Engineering ETRAN 2020. 2021;.
https://hdl.handle.net/21.15107/rcub_cer_4925 .

Stajčić, Aleksandar, Mitić, Vojislav, Serpa, Cristina, Randjelović, Branislav, Radović, Ivana, "Reconstruction of fiber reinforcement in epoxy-based composite" in Proceedings - 8th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2021 and 65th National Conference on Electrоnics, Telecommunication, Computing, Automatic Control and Nuclear Engineering ETRAN 2020 (2021),
https://hdl.handle.net/21.15107/rcub_cer_4925 .

TY  - CONF
AU  - Radović, Ivana
AU  - Mitić, Vojislav V.
AU  - Stajčić, Aleksandar
AU  - Serpa, Cristina
AU  - Ribar, Srđan
AU  - Ranđelović, Branislav
AU  - Vlahović, Branislav
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4899
AB  - Polymers offer the possibility of different reinforcement incorporation due to a broad range of
chemical structures.Along with this feature, their light weight and processing ease made them
a class of materials that have been applied in construction parts, drug delivery agents or
electronic devices. Epoxy-based composites have used as insulators in microelectronic
devices due to its chemical resistance, good adhesion properties and endurance. As epoxies
have low fracture resistance, they are often reinforced with different kinds of fibers.With
thorough knowledge of the structure, physical properties can be predicted and included in the
processing of future composites, especially that electronic materials minituarization brought
micro- and nanoscale level properties at spotlight. Fractal nature analysis is a mathematical
method that has proved to be efficient in grain interface properties applied on perovskite
ceramic materials.In our study, fiber shape reconstruction and determination of Hausdorff
dimension have been achieved with the application of fractal regression model employed in
software Fractal Real Finder opening a new path for the prediction of reinforcement shape
and size, all with the aim of processing composite materials with desired properties.
PB  - Belgrade : Serbian Chemical Society
C3  - Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application IX : New Frontiers in Multifunctional Material Science and Processing
T1  - Fractal reconstruction of fiber-reinforced polymer composites
SP  - 49
EP  - 49
UR  - https://hdl.handle.net/21.15107/rcub_dais_12361
ER  - 

@conference{
author = "Radović, Ivana and Mitić, Vojislav V. and Stajčić, Aleksandar and Serpa, Cristina and Ribar, Srđan and Ranđelović, Branislav and Vlahović, Branislav",
year = "2021",
abstract = "Polymers offer the possibility of different reinforcement incorporation due to a broad range of
chemical structures.Along with this feature, their light weight and processing ease made them
a class of materials that have been applied in construction parts, drug delivery agents or
electronic devices. Epoxy-based composites have used as insulators in microelectronic
devices due to its chemical resistance, good adhesion properties and endurance. As epoxies
have low fracture resistance, they are often reinforced with different kinds of fibers.With
thorough knowledge of the structure, physical properties can be predicted and included in the
processing of future composites, especially that electronic materials minituarization brought
micro- and nanoscale level properties at spotlight. Fractal nature analysis is a mathematical
method that has proved to be efficient in grain interface properties applied on perovskite
ceramic materials.In our study, fiber shape reconstruction and determination of Hausdorff
dimension have been achieved with the application of fractal regression model employed in
software Fractal Real Finder opening a new path for the prediction of reinforcement shape
and size, all with the aim of processing composite materials with desired properties.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application IX : New Frontiers in Multifunctional Material Science and Processing",
title = "Fractal reconstruction of fiber-reinforced polymer composites",
pages = "49-49",
url = "https://hdl.handle.net/21.15107/rcub_dais_12361"
}

Radović, I., Mitić, V. V., Stajčić, A., Serpa, C., Ribar, S., Ranđelović, B.,& Vlahović, B.. (2021). Fractal reconstruction of fiber-reinforced polymer composites. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application IX : New Frontiers in Multifunctional Material Science and Processing
Belgrade : Serbian Chemical Society., 49-49.
https://hdl.handle.net/21.15107/rcub_dais_12361

Radović I, Mitić VV, Stajčić A, Serpa C, Ribar S, Ranđelović B, Vlahović B. Fractal reconstruction of fiber-reinforced polymer composites. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application IX : New Frontiers in Multifunctional Material Science and Processing. 2021;:49-49.
https://hdl.handle.net/21.15107/rcub_dais_12361 .

Radović, Ivana, Mitić, Vojislav V., Stajčić, Aleksandar, Serpa, Cristina, Ribar, Srđan, Ranđelović, Branislav, Vlahović, Branislav, "Fractal reconstruction of fiber-reinforced polymer composites" in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application IX : New Frontiers in Multifunctional Material Science and Processing (2021):49-49,
https://hdl.handle.net/21.15107/rcub_dais_12361 .