TY  - CONF
AU  - Knežević, Petar
AU  - Radaković, Aleksandar
AU  - Nikola, Velimirović
AU  - Zoran, Perović
AU  - Nenad, Stojković
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3228
AB  - In this paper, the new type of Preisach model, that describes the inner hysteresis looops of structural mild steel under cyclic loading, is developed. It is the multilinear mechanical model, that describes closed hysteresis loops typical for structural steel. The analytical model and appropriate Preisach triangle, suitable for engineering practice, were defined. This model was verified by comparison with the experimental results. The experiment has been carried out on structural steel S275 specimens, cyclicly loaded.
PB  - International Conference Synergy of Architecture and Civil Engineering
C3  - Conference Synergy of Architecture & Civil Engineering (SINARG), Niš, September 14–15, 2023
T1  - Preisach model for inner hysteresis loops of cyclicly loaded mild steel elements
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3228
ER  - 

@conference{
author = "Knežević, Petar and Radaković, Aleksandar and Nikola, Velimirović and Zoran, Perović and Nenad, Stojković",
year = "2023",
abstract = "In this paper, the new type of Preisach model, that describes the inner hysteresis looops of structural mild steel under cyclic loading, is developed. It is the multilinear mechanical model, that describes closed hysteresis loops typical for structural steel. The analytical model and appropriate Preisach triangle, suitable for engineering practice, were defined. This model was verified by comparison with the experimental results. The experiment has been carried out on structural steel S275 specimens, cyclicly loaded.",
publisher = "International Conference Synergy of Architecture and Civil Engineering",
journal = "Conference Synergy of Architecture & Civil Engineering (SINARG), Niš, September 14–15, 2023",
title = "Preisach model for inner hysteresis loops of cyclicly loaded mild steel elements",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3228"
}

Knežević, P., Radaković, A., Nikola, V., Zoran, P.,& Nenad, S.. (2023). Preisach model for inner hysteresis loops of cyclicly loaded mild steel elements. in Conference Synergy of Architecture & Civil Engineering (SINARG), Niš, September 14–15, 2023
International Conference Synergy of Architecture and Civil Engineering..
https://hdl.handle.net/21.15107/rcub_grafar_3228

Knežević P, Radaković A, Nikola V, Zoran P, Nenad S. Preisach model for inner hysteresis loops of cyclicly loaded mild steel elements. in Conference Synergy of Architecture & Civil Engineering (SINARG), Niš, September 14–15, 2023. 2023;.
https://hdl.handle.net/21.15107/rcub_grafar_3228 .

Knežević, Petar, Radaković, Aleksandar, Nikola, Velimirović, Zoran, Perović, Nenad, Stojković, "Preisach model for inner hysteresis loops of cyclicly loaded mild steel elements" in Conference Synergy of Architecture & Civil Engineering (SINARG), Niš, September 14–15, 2023 (2023),
https://hdl.handle.net/21.15107/rcub_grafar_3228 .

TY  - THES
AU  - Knežević, Petar
PY  - 2020-07-16
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=8077
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:23559/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=21960969
UR  - https://nardus.mpn.gov.rs/handle/123456789/18276
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2758
AB  - U ovoj doktorskoj disertaciji biće razmatrano elastoplastično ponašanje konstruktivnih mekih čelika privelikim naprezanjima u plastičnoj oblasti. Biće pokazano da je osnovna karakteristika naponskodeformacijskog dijagrama ove vrste čelika, formiranje horizontalnog platoa tečenja između zoneelastičnosti i zone plastičnog ojačanja. Ovaj fenomen, koji se ispoljava u vidu lokalne nestabilnostiatomske rešetke (Lüders band) je samo karakteristika monotong naprezanja, dok kod ponovljenognaprezanja iščezava. Koristeći Preisach-ov histerezisni operator, razvijen je materijalni model, koji savelikom tačnošću opisuje ponašanje ovih čelika pri monotonom aksijalnom naprezanju. Materijalnimodel u vidu analitičkog izraza za vezu dilatacija-napon veoma dobro aproksimira oblasti elastičnosti,horizontalnog platoa tečenja i plastičnog ojačanja, karakterističnih za konstruktivne meke čelikeizložene ovoj vrsti naprezanja...
AB  - In this doctoral dissertation, the elastoplastic behavior of structural mild steel under large deformationsis explained. It will be shown that the stress-strain diagram's main characteristic of this steel type is theformation of a horizontal yield plateau between the elastic region and the plastic hardening region. Thisphenomenon, manifested in the form of local instability of the atomic lattice (Lüders band), is only acharacteristic of monotonic loading, whereas in the case of alternating loading it disappears. UsingPreisach's hysteresis operator, a material model was developed, describing with excellent accuracy thebehavior of this type of steel under monotonic axial loading. The material model in the form of ananalytical expression for the strain-stress relationship very well approximates the regions of elasticity,horizontal yield plateau, and plastic hardening characterized for structural mild steel under this type ofloading.
PB  - Универзитет у Београду, Грађевински факултет
T2  - Универзитет у Београду
T1  - Preisach-ov model histerezisa za analizu konstrukcija izrađenih od čelika sa izraženim platoom tečenja pri cikličnom opterećenju
UR  - https://hdl.handle.net/21.15107/rcub_nardus_18276
ER  - 

@phdthesis{
author = "Knežević, Petar",
year = "2020-07-16",
abstract = "U ovoj doktorskoj disertaciji biće razmatrano elastoplastično ponašanje konstruktivnih mekih čelika privelikim naprezanjima u plastičnoj oblasti. Biće pokazano da je osnovna karakteristika naponskodeformacijskog dijagrama ove vrste čelika, formiranje horizontalnog platoa tečenja između zoneelastičnosti i zone plastičnog ojačanja. Ovaj fenomen, koji se ispoljava u vidu lokalne nestabilnostiatomske rešetke (Lüders band) je samo karakteristika monotong naprezanja, dok kod ponovljenognaprezanja iščezava. Koristeći Preisach-ov histerezisni operator, razvijen je materijalni model, koji savelikom tačnošću opisuje ponašanje ovih čelika pri monotonom aksijalnom naprezanju. Materijalnimodel u vidu analitičkog izraza za vezu dilatacija-napon veoma dobro aproksimira oblasti elastičnosti,horizontalnog platoa tečenja i plastičnog ojačanja, karakterističnih za konstruktivne meke čelikeizložene ovoj vrsti naprezanja..., In this doctoral dissertation, the elastoplastic behavior of structural mild steel under large deformationsis explained. It will be shown that the stress-strain diagram's main characteristic of this steel type is theformation of a horizontal yield plateau between the elastic region and the plastic hardening region. Thisphenomenon, manifested in the form of local instability of the atomic lattice (Lüders band), is only acharacteristic of monotonic loading, whereas in the case of alternating loading it disappears. UsingPreisach's hysteresis operator, a material model was developed, describing with excellent accuracy thebehavior of this type of steel under monotonic axial loading. The material model in the form of ananalytical expression for the strain-stress relationship very well approximates the regions of elasticity,horizontal yield plateau, and plastic hardening characterized for structural mild steel under this type ofloading.",
publisher = "Универзитет у Београду, Грађевински факултет",
journal = "Универзитет у Београду",
title = "Preisach-ov model histerezisa za analizu konstrukcija izrađenih od čelika sa izraženim platoom tečenja pri cikličnom opterećenju",
url = "https://hdl.handle.net/21.15107/rcub_nardus_18276"
}

Knežević, P.. (2020-07-16). Preisach-ov model histerezisa za analizu konstrukcija izrađenih od čelika sa izraženim platoom tečenja pri cikličnom opterećenju. in Универзитет у Београду
Универзитет у Београду, Грађевински факултет..
https://hdl.handle.net/21.15107/rcub_nardus_18276

Knežević P. Preisach-ov model histerezisa za analizu konstrukcija izrađenih od čelika sa izraženim platoom tečenja pri cikličnom opterećenju. in Универзитет у Београду. 2020;.
https://hdl.handle.net/21.15107/rcub_nardus_18276 .

Knežević, Petar, "Preisach-ov model histerezisa za analizu konstrukcija izrađenih od čelika sa izraženim platoom tečenja pri cikličnom opterećenju" in Универзитет у Београду (2020-07-16),
https://hdl.handle.net/21.15107/rcub_nardus_18276 .

TY  - JOUR
AU  - Knežević, Petar
AU  - Šumarac, Dragoslav
AU  - Perović, Zoran
AU  - Dolićanin, Ćemal
AU  - Burzić, Zijah
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2134
AB  - This paper presents the new type of Preisach model that describes the elastoplastic behavior of structural mild steel under axial monotonic tension load with damage. Newly developed model takes into account elastic region, horizontal yield plateau, plastic hardening region, and softening region due to material damage under tension. In order to study the monotonic behavior of structural mild steel and find suitable material properties for the model, monotonic axial tensile tests up to the failure are carried out. Tests are conducted on specimens of the three most common types of European structural steel S235, S275, and S355. The basis of the model represents a mathematical description of material single crystal monotonic axial behavior. In the multilinear mechanical model, a drop in stress, after achieving ultimate stress under tension is achieved by a negative stiffness element. The good agreement with experimental results is accomplished by parallel connection of infinitely many single crystal elements, forming the polycrystalline model. The model represents a good solution for common engineering practice due to its geometrical representation in form of Preisach triangle.
PB  - Budapest University of Technology and Economics
T2  - Periodica Polytechnica Civil Engineering
T1  - A Preisach Model for Monotonic Tension Response of Structural Mild Steel with Damage
EP  - 303
IS  - 1
SP  - 296
VL  - 64
DO  - 10.3311/PPci.14809
ER  - 

@article{
author = "Knežević, Petar and Šumarac, Dragoslav and Perović, Zoran and Dolićanin, Ćemal and Burzić, Zijah",
year = "2020",
abstract = "This paper presents the new type of Preisach model that describes the elastoplastic behavior of structural mild steel under axial monotonic tension load with damage. Newly developed model takes into account elastic region, horizontal yield plateau, plastic hardening region, and softening region due to material damage under tension. In order to study the monotonic behavior of structural mild steel and find suitable material properties for the model, monotonic axial tensile tests up to the failure are carried out. Tests are conducted on specimens of the three most common types of European structural steel S235, S275, and S355. The basis of the model represents a mathematical description of material single crystal monotonic axial behavior. In the multilinear mechanical model, a drop in stress, after achieving ultimate stress under tension is achieved by a negative stiffness element. The good agreement with experimental results is accomplished by parallel connection of infinitely many single crystal elements, forming the polycrystalline model. The model represents a good solution for common engineering practice due to its geometrical representation in form of Preisach triangle.",
publisher = "Budapest University of Technology and Economics",
journal = "Periodica Polytechnica Civil Engineering",
title = "A Preisach Model for Monotonic Tension Response of Structural Mild Steel with Damage",
pages = "303-296",
number = "1",
volume = "64",
doi = "10.3311/PPci.14809"
}

Knežević, P., Šumarac, D., Perović, Z., Dolićanin, Ć.,& Burzić, Z.. (2020). A Preisach Model for Monotonic Tension Response of Structural Mild Steel with Damage. in Periodica Polytechnica Civil Engineering
Budapest University of Technology and Economics., 64(1), 296-303.
https://doi.org/10.3311/PPci.14809

Knežević P, Šumarac D, Perović Z, Dolićanin Ć, Burzić Z. A Preisach Model for Monotonic Tension Response of Structural Mild Steel with Damage. in Periodica Polytechnica Civil Engineering. 2020;64(1):296-303.
doi:10.3311/PPci.14809 .

Knežević, Petar, Šumarac, Dragoslav, Perović, Zoran, Dolićanin, Ćemal, Burzić, Zijah, "A Preisach Model for Monotonic Tension Response of Structural Mild Steel with Damage" in Periodica Polytechnica Civil Engineering, 64, no. 1 (2020):296-303,
https://doi.org/10.3311/PPci.14809 . .