TY  - JOUR
AU  - Burzić, Zijah
AU  - Burzić, Meri
AU  - Grabulov, Vencislav
AU  - Perković, Srđa
PY  - 2018
UR  - http://rims.institutims.rs/handle/123456789/328
AB  - Primena čelika visoke čvrstoće kod projektovanja zavarenih konstrukcija zahteva podatke o svojstvima istih pri različitim uslovima opterećenja. Zahvaljujući visokom naponu tečenja debljina zida može se smanjiti u poređenju sa opštim konstrukcijskim čelicima, a shodno tome, dimenzije zavarenog spoja, potrošnja dodatnog materijala za zavarivanje i vreme za izradu zavarenih spojeva će biti minimizirani. Ovo je od značaja za opremu pod pritiskom, ali i za druge industrijske grane (kranove, bagere). Kompletna karakterizacija zavarenog spoja mora uključiti podatke za osnovni metal, ali takođe su neophodne osobine metala šava i zone uticaja toplote (ZUT), bar da bi ih uporedili sa svojstvima osnovnog metala. Ovo je od posebnog značaja zbog heterogenosti strukture u ZUT-u. .
AB  - The application of high strength steels in design of heavy duty welded structures requires data about properties in different loading conditions. Thanks to high yield stress the wall thickness can be reduced compared to mild structural steels, and accordingly welded joint cross-sections, welding consumables consumption and time for welded joints manufacturing will be minimized. This is of importance for pressurized equipment, but also for other industrial branches (cranes, excavator). Complete characterization of welded joint has to include data for parent metal, but also the properties for weld metal and the heat-affected-zone (HAZ) are necessary, at least in order to compare them with parent metal properties. This is of special importance because of heterogeneity structure in HAZ.
PB  - Vojnotehnički institut, Beograd
T2  - Scientific Technical Review
T1  - Uticaj prsline na karakteristike zavarenog spoja pri različitim vrstama opterećenja
T1  - Influence of crack on welded joint characteristics in different types of loads
EP  - 58
IS  - 1
SP  - 50
VL  - 68
DO  - 10.5937/str1801050B
ER  - 

@article{
author = "Burzić, Zijah and Burzić, Meri and Grabulov, Vencislav and Perković, Srđa",
year = "2018",
abstract = "Primena čelika visoke čvrstoće kod projektovanja zavarenih konstrukcija zahteva podatke o svojstvima istih pri različitim uslovima opterećenja. Zahvaljujući visokom naponu tečenja debljina zida može se smanjiti u poređenju sa opštim konstrukcijskim čelicima, a shodno tome, dimenzije zavarenog spoja, potrošnja dodatnog materijala za zavarivanje i vreme za izradu zavarenih spojeva će biti minimizirani. Ovo je od značaja za opremu pod pritiskom, ali i za druge industrijske grane (kranove, bagere). Kompletna karakterizacija zavarenog spoja mora uključiti podatke za osnovni metal, ali takođe su neophodne osobine metala šava i zone uticaja toplote (ZUT), bar da bi ih uporedili sa svojstvima osnovnog metala. Ovo je od posebnog značaja zbog heterogenosti strukture u ZUT-u. ., The application of high strength steels in design of heavy duty welded structures requires data about properties in different loading conditions. Thanks to high yield stress the wall thickness can be reduced compared to mild structural steels, and accordingly welded joint cross-sections, welding consumables consumption and time for welded joints manufacturing will be minimized. This is of importance for pressurized equipment, but also for other industrial branches (cranes, excavator). Complete characterization of welded joint has to include data for parent metal, but also the properties for weld metal and the heat-affected-zone (HAZ) are necessary, at least in order to compare them with parent metal properties. This is of special importance because of heterogeneity structure in HAZ.",
publisher = "Vojnotehnički institut, Beograd",
journal = "Scientific Technical Review",
title = "Uticaj prsline na karakteristike zavarenog spoja pri različitim vrstama opterećenja, Influence of crack on welded joint characteristics in different types of loads",
pages = "58-50",
number = "1",
volume = "68",
doi = "10.5937/str1801050B"
}

Burzić, Z., Burzić, M., Grabulov, V.,& Perković, S.. (2018). Uticaj prsline na karakteristike zavarenog spoja pri različitim vrstama opterećenja. in Scientific Technical Review
Vojnotehnički institut, Beograd., 68(1), 50-58.
https://doi.org/10.5937/str1801050B

Burzić Z, Burzić M, Grabulov V, Perković S. Uticaj prsline na karakteristike zavarenog spoja pri različitim vrstama opterećenja. in Scientific Technical Review. 2018;68(1):50-58.
doi:10.5937/str1801050B .

Burzić, Zijah, Burzić, Meri, Grabulov, Vencislav, Perković, Srđa, "Uticaj prsline na karakteristike zavarenog spoja pri različitim vrstama opterećenja" in Scientific Technical Review, 68, no. 1 (2018):50-58,
https://doi.org/10.5937/str1801050B . .

TY  - JOUR
AU  - Atanasovska, Ivana
AU  - Momčilović, Dejan
AU  - Burzić, Meri
AU  - Vuherer, Tomaž
PY  - 2012
UR  - http://rims.institutims.rs/handle/123456789/159
AB  - Rad daje opis analize elastoplastičnih deformacija čeličnog cevnog apsorbera kinetičke energije sudara železničkih vozila metodom konačnih elemenata (FEM). Eksperimentalna istraživanja korišćena su kao osnova za modeliranje i simulaciju FEM modela. Razvijeni model konačnih elemenata uključuje nelinearne karakteristike materijala (plastičnost), nelinearni kontakt i velike deformacije konačnih elemenata. Svi aspekti korišćeni u FEM modelu apsorbera detaljno su opisani. Rezultati FEM analize za izabrani apsorber prikazani su i analizirani. Razvijeni model otvara nove mogućnosti za buduća istraživanja u sličnim problemima.
AB  - The paper describes the Finite Element Method (FEM) analysis of elastic plastic deformation of steel tube impact absorbers for railway vehicles. Experiment investigation is used as a basis for FEM modelling and simulation. The developed FEM model includes material nonlinearity (plasticity), nonlinear contact and large deformation of finite elements. All aspects used in the absorber FEM model are explained in detail. The finite element analysis results for a chosen absorber are presented and discussed. The developed model opens the possibilities for future investigations of similar problems.
PB  - Integritet i vek konstrukcija, Beograd
T2  - Structural Integrity and Life
T1  - Spregnuti nelinearni problemi u analizi konačnim elementima - studija slučaja
T1  - Coupled nonlinear problems in finite element analysis: A case study
EP  - 208
IS  - 3
SP  - 201
VL  - 12
UR  - https://hdl.handle.net/21.15107/rcub_rims_159
ER  - 

@article{
author = "Atanasovska, Ivana and Momčilović, Dejan and Burzić, Meri and Vuherer, Tomaž",
year = "2012",
abstract = "Rad daje opis analize elastoplastičnih deformacija čeličnog cevnog apsorbera kinetičke energije sudara železničkih vozila metodom konačnih elemenata (FEM). Eksperimentalna istraživanja korišćena su kao osnova za modeliranje i simulaciju FEM modela. Razvijeni model konačnih elemenata uključuje nelinearne karakteristike materijala (plastičnost), nelinearni kontakt i velike deformacije konačnih elemenata. Svi aspekti korišćeni u FEM modelu apsorbera detaljno su opisani. Rezultati FEM analize za izabrani apsorber prikazani su i analizirani. Razvijeni model otvara nove mogućnosti za buduća istraživanja u sličnim problemima., The paper describes the Finite Element Method (FEM) analysis of elastic plastic deformation of steel tube impact absorbers for railway vehicles. Experiment investigation is used as a basis for FEM modelling and simulation. The developed FEM model includes material nonlinearity (plasticity), nonlinear contact and large deformation of finite elements. All aspects used in the absorber FEM model are explained in detail. The finite element analysis results for a chosen absorber are presented and discussed. The developed model opens the possibilities for future investigations of similar problems.",
publisher = "Integritet i vek konstrukcija, Beograd",
journal = "Structural Integrity and Life",
title = "Spregnuti nelinearni problemi u analizi konačnim elementima - studija slučaja, Coupled nonlinear problems in finite element analysis: A case study",
pages = "208-201",
number = "3",
volume = "12",
url = "https://hdl.handle.net/21.15107/rcub_rims_159"
}

Atanasovska, I., Momčilović, D., Burzić, M.,& Vuherer, T.. (2012). Spregnuti nelinearni problemi u analizi konačnim elementima - studija slučaja. in Structural Integrity and Life
Integritet i vek konstrukcija, Beograd., 12(3), 201-208.
https://hdl.handle.net/21.15107/rcub_rims_159

Atanasovska I, Momčilović D, Burzić M, Vuherer T. Spregnuti nelinearni problemi u analizi konačnim elementima - studija slučaja. in Structural Integrity and Life. 2012;12(3):201-208.
https://hdl.handle.net/21.15107/rcub_rims_159 .

Atanasovska, Ivana, Momčilović, Dejan, Burzić, Meri, Vuherer, Tomaž, "Spregnuti nelinearni problemi u analizi konačnim elementima - studija slučaja" in Structural Integrity and Life, 12, no. 3 (2012):201-208,
https://hdl.handle.net/21.15107/rcub_rims_159 .

TY  - JOUR
AU  - Odanović, Zoran
AU  - Blačić, Ivo
AU  - Vracarić, D.
AU  - Grabulov, Vencislav
AU  - Burzić, Meri
AU  - Katavić, Boris
PY  - 2010
UR  - http://rims.institutims.rs/handle/123456789/113
AB  - Metallurgical evaluation was performed on a fractured column tube of the reformer furnace in an ammonia plant. The tubes were manufactured from centrifugally cast heat resistant steel HK 40. Optical and scanning electron microscope (SEM) were used for microstructural and fracture analysis. For composition determination of the microconstituents energy dispersive X ray spectroscopy (EDS) was used. To evaluate mechanical properties, hardness and microhardness measurements were performed. Investigations based on the microstructural features with the idea to indicate suitability of weld repair of the column were performed in this study. It was observed that the crack initiation, caused by oxidation/corrosion and thermal stresses induced by temperature gradient, appeared in the inner side of the tube wall and propagation occurred along grain boundaries. The results clearly showed the presence of an irregular microstructure which contributed to crack propagation through the tube wall. An occurrence of precipitated needle-shaped carbides/carbonitrides and brittle a phase was also identified in the microstructure. Results of the microstructural and fracture analysis clearly indicate that reformer furnace columns made of heat resistant steel HK 40 were unsuitable for weld repair.
PB  - Consejo Superior Investigaciones Cientificas-Csic, Madrid
T2  - Revista de Metalurgia
T1  - Microstructural analysis as the indicator for suitability of weld repairing of the heat resistant Cr - Ni steel
EP  - 330
IS  - 4
SP  - 320
VL  - 46
DO  - 10.3989/revmetalm.0939
ER  - 

@article{
author = "Odanović, Zoran and Blačić, Ivo and Vracarić, D. and Grabulov, Vencislav and Burzić, Meri and Katavić, Boris",
year = "2010",
abstract = "Metallurgical evaluation was performed on a fractured column tube of the reformer furnace in an ammonia plant. The tubes were manufactured from centrifugally cast heat resistant steel HK 40. Optical and scanning electron microscope (SEM) were used for microstructural and fracture analysis. For composition determination of the microconstituents energy dispersive X ray spectroscopy (EDS) was used. To evaluate mechanical properties, hardness and microhardness measurements were performed. Investigations based on the microstructural features with the idea to indicate suitability of weld repair of the column were performed in this study. It was observed that the crack initiation, caused by oxidation/corrosion and thermal stresses induced by temperature gradient, appeared in the inner side of the tube wall and propagation occurred along grain boundaries. The results clearly showed the presence of an irregular microstructure which contributed to crack propagation through the tube wall. An occurrence of precipitated needle-shaped carbides/carbonitrides and brittle a phase was also identified in the microstructure. Results of the microstructural and fracture analysis clearly indicate that reformer furnace columns made of heat resistant steel HK 40 were unsuitable for weld repair.",
publisher = "Consejo Superior Investigaciones Cientificas-Csic, Madrid",
journal = "Revista de Metalurgia",
title = "Microstructural analysis as the indicator for suitability of weld repairing of the heat resistant Cr - Ni steel",
pages = "330-320",
number = "4",
volume = "46",
doi = "10.3989/revmetalm.0939"
}

Odanović, Z., Blačić, I., Vracarić, D., Grabulov, V., Burzić, M.,& Katavić, B.. (2010). Microstructural analysis as the indicator for suitability of weld repairing of the heat resistant Cr - Ni steel. in Revista de Metalurgia
Consejo Superior Investigaciones Cientificas-Csic, Madrid., 46(4), 320-330.
https://doi.org/10.3989/revmetalm.0939

Odanović Z, Blačić I, Vracarić D, Grabulov V, Burzić M, Katavić B. Microstructural analysis as the indicator for suitability of weld repairing of the heat resistant Cr - Ni steel. in Revista de Metalurgia. 2010;46(4):320-330.
doi:10.3989/revmetalm.0939 .

Odanović, Zoran, Blačić, Ivo, Vracarić, D., Grabulov, Vencislav, Burzić, Meri, Katavić, Boris, "Microstructural analysis as the indicator for suitability of weld repairing of the heat resistant Cr - Ni steel" in Revista de Metalurgia, 46, no. 4 (2010):320-330,
https://doi.org/10.3989/revmetalm.0939 . .

TY  - JOUR
AU  - Burzić, Meri
AU  - Sedmak, Stojan
AU  - Burzić, Zijah
AU  - Zrilić, Milorad
AU  - Jaković, Dragan
AU  - Momčilović, Dejan
PY  - 2003
UR  - http://rims.institutims.rs/handle/123456789/30
AB  - U ovom radu su prikazane metode za određivanje dinamičke žilavosti loma, KId Metode dinamičkog J integrala, i ekvivalenta energije su eksperimentalno potvrđene ispitivanjem čelika Č 5432 i Č 4734. Ovaj rad predstavlja doprinos u ovladavanju metodama koje definišu ponašanje materijala u dinamičkim uslovima rasta prsline. Primena ovih metoda zajedno sa ostalim metodama za određivanje parametara mehanike loma predstavlja značajan doprinos istraživanju ponašanja konstrukcijskih materijala u prisustvu prsline.
AB  - In this paper the investigation of methods for determination of dynamic fracture toughness, KId. Dynamic J-integral and equivalence energy methods are experimental confirm testing of steel Č 5432 and Č 4734. This paper presented of contribution in control methods what's to define behavior of materials in condition of dynamic crack growth. Application this all methods presented very imported contribution of investigation behavior construction materials in presence of crack.
PB  - Visoka tehnička škola strukovnih studija, Beograd
T2  - Tehnička dijagnostika
T1  - Eksperimentalno određivanje dinamičke žilavosti loma KId, kod metalnih materijala visoke čvrstoće
T1  - Experimental determination of dynamic fracture toughness KId in metal materials with high strength
EP  - 39
IS  - 1
SP  - 28
VL  - 2
UR  - https://hdl.handle.net/21.15107/rcub_rims_30
ER  - 

@article{
author = "Burzić, Meri and Sedmak, Stojan and Burzić, Zijah and Zrilić, Milorad and Jaković, Dragan and Momčilović, Dejan",
year = "2003",
abstract = "U ovom radu su prikazane metode za određivanje dinamičke žilavosti loma, KId Metode dinamičkog J integrala, i ekvivalenta energije su eksperimentalno potvrđene ispitivanjem čelika Č 5432 i Č 4734. Ovaj rad predstavlja doprinos u ovladavanju metodama koje definišu ponašanje materijala u dinamičkim uslovima rasta prsline. Primena ovih metoda zajedno sa ostalim metodama za određivanje parametara mehanike loma predstavlja značajan doprinos istraživanju ponašanja konstrukcijskih materijala u prisustvu prsline., In this paper the investigation of methods for determination of dynamic fracture toughness, KId. Dynamic J-integral and equivalence energy methods are experimental confirm testing of steel Č 5432 and Č 4734. This paper presented of contribution in control methods what's to define behavior of materials in condition of dynamic crack growth. Application this all methods presented very imported contribution of investigation behavior construction materials in presence of crack.",
publisher = "Visoka tehnička škola strukovnih studija, Beograd",
journal = "Tehnička dijagnostika",
title = "Eksperimentalno određivanje dinamičke žilavosti loma KId, kod metalnih materijala visoke čvrstoće, Experimental determination of dynamic fracture toughness KId in metal materials with high strength",
pages = "39-28",
number = "1",
volume = "2",
url = "https://hdl.handle.net/21.15107/rcub_rims_30"
}

Burzić, M., Sedmak, S., Burzić, Z., Zrilić, M., Jaković, D.,& Momčilović, D.. (2003). Eksperimentalno određivanje dinamičke žilavosti loma KId, kod metalnih materijala visoke čvrstoće. in Tehnička dijagnostika
Visoka tehnička škola strukovnih studija, Beograd., 2(1), 28-39.
https://hdl.handle.net/21.15107/rcub_rims_30

Burzić M, Sedmak S, Burzić Z, Zrilić M, Jaković D, Momčilović D. Eksperimentalno određivanje dinamičke žilavosti loma KId, kod metalnih materijala visoke čvrstoće. in Tehnička dijagnostika. 2003;2(1):28-39.
https://hdl.handle.net/21.15107/rcub_rims_30 .

Burzić, Meri, Sedmak, Stojan, Burzić, Zijah, Zrilić, Milorad, Jaković, Dragan, Momčilović, Dejan, "Eksperimentalno određivanje dinamičke žilavosti loma KId, kod metalnih materijala visoke čvrstoće" in Tehnička dijagnostika, 2, no. 1 (2003):28-39,
https://hdl.handle.net/21.15107/rcub_rims_30 .

TY  - JOUR
AU  - Burzić, Meri
AU  - Sedmak, Stojan
AU  - Burzić, Zijah
AU  - Jaković, Dragan
AU  - Momčilović, Dejan
PY  - 2002
UR  - http://rims.institutims.rs/handle/123456789/28
AB  - Analiziran je uticaj sadržaja Mg u matrici i zapreminskog udela SiC čestica u metal matričnom kompozitu (MMC) na udarnu žilavost. Livena AlMg legura, sa 3%, 5% i 7% sadržaja Mg korišćena je kao metal matrice. Primenjen je sadržaj ojačavaća od 2%, 5% i 10%, sa prosečnom veličinom čestica od 30 µm. Kompozit je dobijen metodom vrtložnog livenja. Energija udara metal matričnog kompozita sa AlMg matricom smanjuje se sa porastom sadržaja SiC i smanjenjem sadržaja Mg. Najveća ukupna energija je nađena u MMC AlMg7 sa 2% SiC (14,7-17,5 J), a najmanja u MMC AlMg3 sa 10% SiC (3,7-4,1 J). Vrednosti za metal matrični kompozit su manje od vrednosti za odgovarajuću leguru za 40 do 50%.
AB  - The effect of Mg content in matrix and volume entail of SiC particles in metal matrix composite (MMC) on impact toughness is analyzed. Cast AlMg alloy, with 3%, 5% and 7% Mg content is used as metal matrix. Reinforcement content of 2%, 5% and 10%, with an average particle size of 30 µm, had been applied. Composite is obtained by whirlpool casting method. The impact energy of metal matrix composite with AlMg matrix decreases with increasing SiC content and with decreasing Mg content. The highest total energy is found in MMC AlMg7 with 2% SiC (14.7-17.5 J), and the lowest one in MMC AlMg3 with 10% SiC (3.7-4.1 J). The values for metal matrix composite are bellow that of corresponding alloy for 40 to 50% .
PB  - Institut za ispitivanje materijala, Beograd
T2  - Integritet i vek konstrukcija
T1  - Uticaj sadržaja ojačavača na udarnu žilavost livenog Al-SiCp metal matričnog kompozita
T1  - The effect of reinforcement content on impact toughness of cast Al-SiCP metal matrix composite
EP  - 14
IS  - 1-2
SP  - 11
VL  - 2
UR  - https://hdl.handle.net/21.15107/rcub_rims_28
ER  - 

@article{
author = "Burzić, Meri and Sedmak, Stojan and Burzić, Zijah and Jaković, Dragan and Momčilović, Dejan",
year = "2002",
abstract = "Analiziran je uticaj sadržaja Mg u matrici i zapreminskog udela SiC čestica u metal matričnom kompozitu (MMC) na udarnu žilavost. Livena AlMg legura, sa 3%, 5% i 7% sadržaja Mg korišćena je kao metal matrice. Primenjen je sadržaj ojačavaća od 2%, 5% i 10%, sa prosečnom veličinom čestica od 30 µm. Kompozit je dobijen metodom vrtložnog livenja. Energija udara metal matričnog kompozita sa AlMg matricom smanjuje se sa porastom sadržaja SiC i smanjenjem sadržaja Mg. Najveća ukupna energija je nađena u MMC AlMg7 sa 2% SiC (14,7-17,5 J), a najmanja u MMC AlMg3 sa 10% SiC (3,7-4,1 J). Vrednosti za metal matrični kompozit su manje od vrednosti za odgovarajuću leguru za 40 do 50%., The effect of Mg content in matrix and volume entail of SiC particles in metal matrix composite (MMC) on impact toughness is analyzed. Cast AlMg alloy, with 3%, 5% and 7% Mg content is used as metal matrix. Reinforcement content of 2%, 5% and 10%, with an average particle size of 30 µm, had been applied. Composite is obtained by whirlpool casting method. The impact energy of metal matrix composite with AlMg matrix decreases with increasing SiC content and with decreasing Mg content. The highest total energy is found in MMC AlMg7 with 2% SiC (14.7-17.5 J), and the lowest one in MMC AlMg3 with 10% SiC (3.7-4.1 J). The values for metal matrix composite are bellow that of corresponding alloy for 40 to 50% .",
publisher = "Institut za ispitivanje materijala, Beograd",
journal = "Integritet i vek konstrukcija",
title = "Uticaj sadržaja ojačavača na udarnu žilavost livenog Al-SiCp metal matričnog kompozita, The effect of reinforcement content on impact toughness of cast Al-SiCP metal matrix composite",
pages = "14-11",
number = "1-2",
volume = "2",
url = "https://hdl.handle.net/21.15107/rcub_rims_28"
}

Burzić, M., Sedmak, S., Burzić, Z., Jaković, D.,& Momčilović, D.. (2002). Uticaj sadržaja ojačavača na udarnu žilavost livenog Al-SiCp metal matričnog kompozita. in Integritet i vek konstrukcija
Institut za ispitivanje materijala, Beograd., 2(1-2), 11-14.
https://hdl.handle.net/21.15107/rcub_rims_28

Burzić M, Sedmak S, Burzić Z, Jaković D, Momčilović D. Uticaj sadržaja ojačavača na udarnu žilavost livenog Al-SiCp metal matričnog kompozita. in Integritet i vek konstrukcija. 2002;2(1-2):11-14.
https://hdl.handle.net/21.15107/rcub_rims_28 .

Burzić, Meri, Sedmak, Stojan, Burzić, Zijah, Jaković, Dragan, Momčilović, Dejan, "Uticaj sadržaja ojačavača na udarnu žilavost livenog Al-SiCp metal matričnog kompozita" in Integritet i vek konstrukcija, 2, no. 1-2 (2002):11-14,
https://hdl.handle.net/21.15107/rcub_rims_28 .

TY  - JOUR
AU  - Burzić, Meri
AU  - Sedmak, Stojan
AU  - Zrilić, Milorad
AU  - Burzić, Zijah
AU  - Jaković, Dragan
AU  - Momčilović, Dejan
PY  - 2002
UR  - http://rims.institutims.rs/handle/123456789/27
AB  - Uticaj orijentacije ugljeničnih vlakana u kompozitu sa epoksi matricom na udarnu žilavost i na žilavost loma je eksperimentalno analiziran ispitivanjem Šarpi epruveta sa V zarezom i zarezanih epruveta modifikovanog CT oblika (sa oštrim vrhom zareza koji zamenjuje zamornu prslinu). Epruvete su proizvedene od uzoraka sa orijentacijom vlakana [±45]16s, [0/90]16s, kao i sa kombinovanim sastavom [02/90/±45/90/02]4s. Epruvete sa V zarezom su ispitivane na instrumentiranoj Šarpi mašini, čime je omogućeno razdvajanje energija nastanka i rasta prsline. Faktor intenziteta napona Kc je izabran kao parametar loma. Ukupne vrednosti udarne žilavosti su pokazale da [0/90]16s, kao što je očekivano, daje najveću otpornost na udar, ali su i vrednosti za [02/90/±45/90/02]4s bile zadovoljavajuće, sa pogodnim odnosom energije širenja i energije rasta prsline. Ispitivanje modifikovane CT epruvete je dalo slične i zadovoljavajuće rezultate za faktor intenziteta napona za dva uzorka ([0/90]16s i [02/90/±45/90/02]4s), dok je za treći [±45]16s, ova vrednost niža za oko 20%. Imajući na umu druge prednosti orijentacije [02/90/±45/90/02]4s, ona se može preporučiti kao najbolja uprkos nešto nižoj udarnoj energiji.
AB  - The effect of carbon fibers orientation in a composite with epoxy matrix on the impact and fracture toughness is experimentally analyzed by testing of Charpy type V notched specimens and notched specimens of modified CT form (with sharp notch tip as replacement for fatigue pre-crack). Specimens were produced from samples with carbon fiber orientation [±45]16s, [0/90]16s, and also with combined composition [02/90-/±45/90/-02]4s. Specimens with V notch have been tested on instrumented Charpy machine, enabling to separate crack initiation and propagation energies. Stress intensity factor Kc had been selected as fracture parameter. Total impact toughness values have shown that highest impact resistance belongs to [0/90]16s, as expected, but the values for [02/90/±45/90/02]4s are also satisfactory, with convenient ratio of crack propagation to crack initiation energies. Modified CT specimen testing have shown close and satisfactory results for stress intensity factor of two samples ([0/90]16s and [02/90/±45/90/02]4s), and for third sample [±45]16s this value is about 20% lower. Having in mind other benefits with [02/90/±45/90/0-2]4s, it can be recommended as superior in spite of somewhat lower impact energy.
PB  - Institut za ispitivanje materijala, Beograd
T2  - Integritet i vek konstrukcija
T1  - Uticaj orijentacije vlakana na udarnu žilavost i osobine loma kompozita ugljenična vlakna - epoksi smola
T1  - The effect of fiber orientation on impact toughness and fracture properties of carbon fiber-epoxy composite
EP  - 19
IS  - 1-2
SP  - 15
VL  - 2
UR  - https://hdl.handle.net/21.15107/rcub_rims_27
ER  - 

@article{
author = "Burzić, Meri and Sedmak, Stojan and Zrilić, Milorad and Burzić, Zijah and Jaković, Dragan and Momčilović, Dejan",
year = "2002",
abstract = "Uticaj orijentacije ugljeničnih vlakana u kompozitu sa epoksi matricom na udarnu žilavost i na žilavost loma je eksperimentalno analiziran ispitivanjem Šarpi epruveta sa V zarezom i zarezanih epruveta modifikovanog CT oblika (sa oštrim vrhom zareza koji zamenjuje zamornu prslinu). Epruvete su proizvedene od uzoraka sa orijentacijom vlakana [±45]16s, [0/90]16s, kao i sa kombinovanim sastavom [02/90/±45/90/02]4s. Epruvete sa V zarezom su ispitivane na instrumentiranoj Šarpi mašini, čime je omogućeno razdvajanje energija nastanka i rasta prsline. Faktor intenziteta napona Kc je izabran kao parametar loma. Ukupne vrednosti udarne žilavosti su pokazale da [0/90]16s, kao što je očekivano, daje najveću otpornost na udar, ali su i vrednosti za [02/90/±45/90/02]4s bile zadovoljavajuće, sa pogodnim odnosom energije širenja i energije rasta prsline. Ispitivanje modifikovane CT epruvete je dalo slične i zadovoljavajuće rezultate za faktor intenziteta napona za dva uzorka ([0/90]16s i [02/90/±45/90/02]4s), dok je za treći [±45]16s, ova vrednost niža za oko 20%. Imajući na umu druge prednosti orijentacije [02/90/±45/90/02]4s, ona se može preporučiti kao najbolja uprkos nešto nižoj udarnoj energiji., The effect of carbon fibers orientation in a composite with epoxy matrix on the impact and fracture toughness is experimentally analyzed by testing of Charpy type V notched specimens and notched specimens of modified CT form (with sharp notch tip as replacement for fatigue pre-crack). Specimens were produced from samples with carbon fiber orientation [±45]16s, [0/90]16s, and also with combined composition [02/90-/±45/90/-02]4s. Specimens with V notch have been tested on instrumented Charpy machine, enabling to separate crack initiation and propagation energies. Stress intensity factor Kc had been selected as fracture parameter. Total impact toughness values have shown that highest impact resistance belongs to [0/90]16s, as expected, but the values for [02/90/±45/90/02]4s are also satisfactory, with convenient ratio of crack propagation to crack initiation energies. Modified CT specimen testing have shown close and satisfactory results for stress intensity factor of two samples ([0/90]16s and [02/90/±45/90/02]4s), and for third sample [±45]16s this value is about 20% lower. Having in mind other benefits with [02/90/±45/90/0-2]4s, it can be recommended as superior in spite of somewhat lower impact energy.",
publisher = "Institut za ispitivanje materijala, Beograd",
journal = "Integritet i vek konstrukcija",
title = "Uticaj orijentacije vlakana na udarnu žilavost i osobine loma kompozita ugljenična vlakna - epoksi smola, The effect of fiber orientation on impact toughness and fracture properties of carbon fiber-epoxy composite",
pages = "19-15",
number = "1-2",
volume = "2",
url = "https://hdl.handle.net/21.15107/rcub_rims_27"
}

Burzić, M., Sedmak, S., Zrilić, M., Burzić, Z., Jaković, D.,& Momčilović, D.. (2002). Uticaj orijentacije vlakana na udarnu žilavost i osobine loma kompozita ugljenična vlakna - epoksi smola. in Integritet i vek konstrukcija
Institut za ispitivanje materijala, Beograd., 2(1-2), 15-19.
https://hdl.handle.net/21.15107/rcub_rims_27

Burzić M, Sedmak S, Zrilić M, Burzić Z, Jaković D, Momčilović D. Uticaj orijentacije vlakana na udarnu žilavost i osobine loma kompozita ugljenična vlakna - epoksi smola. in Integritet i vek konstrukcija. 2002;2(1-2):15-19.
https://hdl.handle.net/21.15107/rcub_rims_27 .

Burzić, Meri, Sedmak, Stojan, Zrilić, Milorad, Burzić, Zijah, Jaković, Dragan, Momčilović, Dejan, "Uticaj orijentacije vlakana na udarnu žilavost i osobine loma kompozita ugljenična vlakna - epoksi smola" in Integritet i vek konstrukcija, 2, no. 1-2 (2002):15-19,
https://hdl.handle.net/21.15107/rcub_rims_27 .