TY  - CONF
AU  - Nefovska-Danilović, Marija
AU  - Racić, Vitomir
AU  - Milojević, Marija
AU  - Mišković, Zoran
AU  - Savatović, Siniša
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3408
AB  - Cross-laminated timber (CLT) floors have gained in popularity due to their outstanding strength,
aesthetic appeal, good fire resistance, and high level of prefabrication. However, due to their
high stiffness-to-weight ratio, CLT floors are highly susceptible to pedestrian-induced
vibrations. In design practice, vibration serviceability is usually assessed by assuming a floor as
a set of CLT panels with no inter-panel connections, which leads to overestimation of the
vibration response. In this paper, an experimental dynamic testing was carried out to identify
modal properties and pedestrian-induced response of two CLT floors with different number of
panels in a floor assembly. Influence of the inter-panel connections on the floor modal properties
and pedestrian-induced vibration response is particularly studied and discussed.
C3  - EURODYN 2023, XII International Conference on Structural Dynamics, 02-05 July 2023, Delft, The Netherlands
T1  - Experimental modal analysis of cross-laminated timber floors
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3408
ER  - 

@conference{
author = "Nefovska-Danilović, Marija and Racić, Vitomir and Milojević, Marija and Mišković, Zoran and Savatović, Siniša",
year = "2023",
abstract = "Cross-laminated timber (CLT) floors have gained in popularity due to their outstanding strength,
aesthetic appeal, good fire resistance, and high level of prefabrication. However, due to their
high stiffness-to-weight ratio, CLT floors are highly susceptible to pedestrian-induced
vibrations. In design practice, vibration serviceability is usually assessed by assuming a floor as
a set of CLT panels with no inter-panel connections, which leads to overestimation of the
vibration response. In this paper, an experimental dynamic testing was carried out to identify
modal properties and pedestrian-induced response of two CLT floors with different number of
panels in a floor assembly. Influence of the inter-panel connections on the floor modal properties
and pedestrian-induced vibration response is particularly studied and discussed.",
journal = "EURODYN 2023, XII International Conference on Structural Dynamics, 02-05 July 2023, Delft, The Netherlands",
title = "Experimental modal analysis of cross-laminated timber floors",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3408"
}

Nefovska-Danilović, M., Racić, V., Milojević, M., Mišković, Z.,& Savatović, S.. (2023). Experimental modal analysis of cross-laminated timber floors. in EURODYN 2023, XII International Conference on Structural Dynamics, 02-05 July 2023, Delft, The Netherlands.
https://hdl.handle.net/21.15107/rcub_grafar_3408

Nefovska-Danilović M, Racić V, Milojević M, Mišković Z, Savatović S. Experimental modal analysis of cross-laminated timber floors. in EURODYN 2023, XII International Conference on Structural Dynamics, 02-05 July 2023, Delft, The Netherlands. 2023;.
https://hdl.handle.net/21.15107/rcub_grafar_3408 .

Nefovska-Danilović, Marija, Racić, Vitomir, Milojević, Marija, Mišković, Zoran, Savatović, Siniša, "Experimental modal analysis of cross-laminated timber floors" in EURODYN 2023, XII International Conference on Structural Dynamics, 02-05 July 2023, Delft, The Netherlands (2023),
https://hdl.handle.net/21.15107/rcub_grafar_3408 .

TY  - CONF
AU  - Racić, Vitomir
AU  - Nefovska-Danilović, Marija
AU  - Milojević, Marija
AU  - Marjanović, Miroslav
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3187
AB  - Cross-laminated timber (CLT) floors are typically composed of prefabricated CLT panels assembled on a construction site. The actual connections are commonly disregarded at design stage. CLT floors are modelled either as a monolithic slab or more frequently as a collection of CLT panels with no connections. This paper presents a numerical study designed to demonstrate the effect of two common inter-panel connections, i.e. single surface spline and half-lapped joint, on vibration modes of various CLT floor configurations. The inter-panel connections are modelled as an equivalent 2D elastic strip between the CLT panels. This uncomplicated yet robust approximation of reality can be used readily in design practice, regardless finite element (FE) software used to determine modal properties of a floor. The corresponding monolithic floors and those without inter-panel connections are studied for comparison. The results showed that the common practice of modelling CLT floors either as monolithic slabs or as a set of independent panels should come to an end.
C3  - International Conference on Experimental Vibration Analysis for Civil Engineering Structures EVACE, Politecnico di Milano, Italy, August 30 – September 1, 2023S 2023
T1  - Effect of Inter-panel Connections on Modal Properties of Cross-Laminated Timber Floors
EP  - 598
SP  - 589
DO  - 10.1007/978-3-031-39109-5_60
ER  - 

@conference{
author = "Racić, Vitomir and Nefovska-Danilović, Marija and Milojević, Marija and Marjanović, Miroslav",
year = "2023",
abstract = "Cross-laminated timber (CLT) floors are typically composed of prefabricated CLT panels assembled on a construction site. The actual connections are commonly disregarded at design stage. CLT floors are modelled either as a monolithic slab or more frequently as a collection of CLT panels with no connections. This paper presents a numerical study designed to demonstrate the effect of two common inter-panel connections, i.e. single surface spline and half-lapped joint, on vibration modes of various CLT floor configurations. The inter-panel connections are modelled as an equivalent 2D elastic strip between the CLT panels. This uncomplicated yet robust approximation of reality can be used readily in design practice, regardless finite element (FE) software used to determine modal properties of a floor. The corresponding monolithic floors and those without inter-panel connections are studied for comparison. The results showed that the common practice of modelling CLT floors either as monolithic slabs or as a set of independent panels should come to an end.",
journal = "International Conference on Experimental Vibration Analysis for Civil Engineering Structures EVACE, Politecnico di Milano, Italy, August 30 – September 1, 2023S 2023",
title = "Effect of Inter-panel Connections on Modal Properties of Cross-Laminated Timber Floors",
pages = "598-589",
doi = "10.1007/978-3-031-39109-5_60"
}

Racić, V., Nefovska-Danilović, M., Milojević, M.,& Marjanović, M.. (2023). Effect of Inter-panel Connections on Modal Properties of Cross-Laminated Timber Floors. in International Conference on Experimental Vibration Analysis for Civil Engineering Structures EVACE, Politecnico di Milano, Italy, August 30 – September 1, 2023S 2023, 589-598.
https://doi.org/10.1007/978-3-031-39109-5_60

Racić V, Nefovska-Danilović M, Milojević M, Marjanović M. Effect of Inter-panel Connections on Modal Properties of Cross-Laminated Timber Floors. in International Conference on Experimental Vibration Analysis for Civil Engineering Structures EVACE, Politecnico di Milano, Italy, August 30 – September 1, 2023S 2023. 2023;:589-598.
doi:10.1007/978-3-031-39109-5_60 .

Racić, Vitomir, Nefovska-Danilović, Marija, Milojević, Marija, Marjanović, Miroslav, "Effect of Inter-panel Connections on Modal Properties of Cross-Laminated Timber Floors" in International Conference on Experimental Vibration Analysis for Civil Engineering Structures EVACE, Politecnico di Milano, Italy, August 30 – September 1, 2023S 2023 (2023):589-598,
https://doi.org/10.1007/978-3-031-39109-5_60 . .

TY  - JOUR
AU  - Milojević, Marija
AU  - Racić, Vitomir
AU  - Marjanović, Miroslav
AU  - Nefovska-Danilović, Marija
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2923
AB  - Long-span cross-laminated timber (CLT) floors are typically an assembly of prefabricated CLT panels connected together on the site. The actual connections are commonly neglected in design calculations. Hence, a CLT floor is modelled either as a monolith slab or more frequently as a set of CLT panels with no connections at all. This paper presents a numerical study designed to examine the influence of two most common inter-panel connections , i.e. single surface spline and half-lapped joint, on vibration modes and vibration responses of a range of different CLT floors due to pedestrian-induced loading. Although the inter-panel connections are relatively complex in reality, they are modelled here as an equivalent 2D elastic strip between the CLT panels. This relatively simple yet robust model can be used with ease in design practice, regardless finite element (FE) software used to extract vibration modes of a CLT floor. The corresponding monolith floors and floors without inter-panel connections are studied for the comparison of the results. Vertical vibration responses are simulated for low-frequency and high-frequency floors using the corresponding walking force models given in a popular design guideline for footfall induced vibrations of civil engineering structures. Vibration responses were calculated for single pedestrian occupants and their walking paths parallel and perpendicular to the line of connection. The results showed that including the inter-panel connections in a FE model resulted in up to 2.5 higher RMS acceleration levels. Hence, the common practice of modelling CLT floors as monolith slabs or as a set of panels without connections should be left behind.
T2  - Engineering Structures
T1  - Influence of inter-panel connections on vibration response of CLT floors due to pedestrian-induced loading
VL  - 277
DO  - 10.1016/j.engstruct.2022.115432
ER  - 

@article{
author = "Milojević, Marija and Racić, Vitomir and Marjanović, Miroslav and Nefovska-Danilović, Marija",
year = "2023",
abstract = "Long-span cross-laminated timber (CLT) floors are typically an assembly of prefabricated CLT panels connected together on the site. The actual connections are commonly neglected in design calculations. Hence, a CLT floor is modelled either as a monolith slab or more frequently as a set of CLT panels with no connections at all. This paper presents a numerical study designed to examine the influence of two most common inter-panel connections , i.e. single surface spline and half-lapped joint, on vibration modes and vibration responses of a range of different CLT floors due to pedestrian-induced loading. Although the inter-panel connections are relatively complex in reality, they are modelled here as an equivalent 2D elastic strip between the CLT panels. This relatively simple yet robust model can be used with ease in design practice, regardless finite element (FE) software used to extract vibration modes of a CLT floor. The corresponding monolith floors and floors without inter-panel connections are studied for the comparison of the results. Vertical vibration responses are simulated for low-frequency and high-frequency floors using the corresponding walking force models given in a popular design guideline for footfall induced vibrations of civil engineering structures. Vibration responses were calculated for single pedestrian occupants and their walking paths parallel and perpendicular to the line of connection. The results showed that including the inter-panel connections in a FE model resulted in up to 2.5 higher RMS acceleration levels. Hence, the common practice of modelling CLT floors as monolith slabs or as a set of panels without connections should be left behind.",
journal = "Engineering Structures",
title = "Influence of inter-panel connections on vibration response of CLT floors due to pedestrian-induced loading",
volume = "277",
doi = "10.1016/j.engstruct.2022.115432"
}

Milojević, M., Racić, V., Marjanović, M.,& Nefovska-Danilović, M.. (2023). Influence of inter-panel connections on vibration response of CLT floors due to pedestrian-induced loading. in Engineering Structures, 277.
https://doi.org/10.1016/j.engstruct.2022.115432

Milojević M, Racić V, Marjanović M, Nefovska-Danilović M. Influence of inter-panel connections on vibration response of CLT floors due to pedestrian-induced loading. in Engineering Structures. 2023;277.
doi:10.1016/j.engstruct.2022.115432 .

Milojević, Marija, Racić, Vitomir, Marjanović, Miroslav, Nefovska-Danilović, Marija, "Influence of inter-panel connections on vibration response of CLT floors due to pedestrian-induced loading" in Engineering Structures, 277 (2023),
https://doi.org/10.1016/j.engstruct.2022.115432 . .

TY  - CONF
AU  - Milojević, Marija
AU  - Ljaljević, Strahinja
AU  - Racić, Vitomir
AU  - Marjanović, Miroslav
AU  - Nefovska-Danilović, Marija
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2717
AB  - Trends in contemporary architecture towards open-plan spaces in commercial and residential
buildings have created problems with excessive vibrations of large-span floors induced by active
people. Solving vibration serviceability problems of as-built structures is costly and time-consuming.
Therefore, such a problem is the most efficiently and economically addressed at the
design stage. This paper presents software developed by the authors for assessing pedestrian-induced
vibrations of floors. The software is designed as a user-friendly graphical interface that
could be utilised in everyday design practice.
AB  - Trendovi u savremenoj arhitekturi, koji diktiraju projektovanje komercijalnih i stambenih zgrada
sa otvorenim prostorom, prouzrokovali su problem prekomernih vibracija međuspratnih
konstrukcija velikih raspona usled aktivnosti ljudi koji se po njima kreću. Saniranje prekomernih
vibracija već izgrađenih konstrukcija je skupo i vremenski zahtevno. Zbog toga je najefikasnije
i najekonomičnije ovaj problem eliminisati već u fazi projektovanja. U radu je predstavljen
softver za procenu vibracija međuspratnih konstrukcija izazvanih pešačkim opterećenjem,
jednostavnog grafičkog okruženja i pogodan za svakodnevnu upotrebu u projektovanju.
PB  - Association of Structural Engineers of Serbia
C3  - 16th Congress hosted by Association of Structural Engineers of Serbia
T1  - Software for calculation of pedestrian-induced vibration of floors
T1  - Softver za proračun vibracija međuspratnih konstrukcija usled dinamičke sile pešaka
EP  - 265
SP  - 256
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2717
ER  - 

@conference{
author = "Milojević, Marija and Ljaljević, Strahinja and Racić, Vitomir and Marjanović, Miroslav and Nefovska-Danilović, Marija",
year = "2022",
abstract = "Trends in contemporary architecture towards open-plan spaces in commercial and residential
buildings have created problems with excessive vibrations of large-span floors induced by active
people. Solving vibration serviceability problems of as-built structures is costly and time-consuming.
Therefore, such a problem is the most efficiently and economically addressed at the
design stage. This paper presents software developed by the authors for assessing pedestrian-induced
vibrations of floors. The software is designed as a user-friendly graphical interface that
could be utilised in everyday design practice., Trendovi u savremenoj arhitekturi, koji diktiraju projektovanje komercijalnih i stambenih zgrada
sa otvorenim prostorom, prouzrokovali su problem prekomernih vibracija međuspratnih
konstrukcija velikih raspona usled aktivnosti ljudi koji se po njima kreću. Saniranje prekomernih
vibracija već izgrađenih konstrukcija je skupo i vremenski zahtevno. Zbog toga je najefikasnije
i najekonomičnije ovaj problem eliminisati već u fazi projektovanja. U radu je predstavljen
softver za procenu vibracija međuspratnih konstrukcija izazvanih pešačkim opterećenjem,
jednostavnog grafičkog okruženja i pogodan za svakodnevnu upotrebu u projektovanju.",
publisher = "Association of Structural Engineers of Serbia",
journal = "16th Congress hosted by Association of Structural Engineers of Serbia",
title = "Software for calculation of pedestrian-induced vibration of floors, Softver za proračun vibracija međuspratnih konstrukcija usled dinamičke sile pešaka",
pages = "265-256",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2717"
}

Milojević, M., Ljaljević, S., Racić, V., Marjanović, M.,& Nefovska-Danilović, M.. (2022). Software for calculation of pedestrian-induced vibration of floors. in 16th Congress hosted by Association of Structural Engineers of Serbia
Association of Structural Engineers of Serbia., 256-265.
https://hdl.handle.net/21.15107/rcub_grafar_2717

Milojević M, Ljaljević S, Racić V, Marjanović M, Nefovska-Danilović M. Software for calculation of pedestrian-induced vibration of floors. in 16th Congress hosted by Association of Structural Engineers of Serbia. 2022;:256-265.
https://hdl.handle.net/21.15107/rcub_grafar_2717 .

Milojević, Marija, Ljaljević, Strahinja, Racić, Vitomir, Marjanović, Miroslav, Nefovska-Danilović, Marija, "Software for calculation of pedestrian-induced vibration of floors" in 16th Congress hosted by Association of Structural Engineers of Serbia (2022):256-265,
https://hdl.handle.net/21.15107/rcub_grafar_2717 .

TY  - JOUR
AU  - Milojević, Marija
AU  - Damnjanović, Emilija
AU  - Nefovska-Danilović, Marija
AU  - Marjanović, Miroslav
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2399
AB  - Variety of wood species and complexity of their structure make the reliable material properties of cross-laminated timber (CLT) difficult to obtain, which can lead to inaccurate prediction of CLT behavior. Due to high stiffness-to-weight ratio, CLT floors can suffer from vibration serviceability issues. This paper aims to quantify the uncertainties induced by material properties and investigate their effect on vibration performance of CLT floors. Analysis based on Monte Carlo simulations, considering material properties as random variables, is developed. Based on the conducted analysis, appropriate conclusions have been derived.
PB  - Society for Materials and Structures Testing of Serbia, Belgrade
PB  - University of Belgrade Faculty of Civil Engineering
PB  - Association of Structural Engineers of Serbia
T2  - Gradjevinski materijali i konstrukcije
T1  - Effects of material uncertainties on vibration performance cross laminated timber floors
EP  - 157
IS  - 3
SP  - 153
VL  - 64
DO  - 10.5937/grmk2103153M
ER  - 

@article{
author = "Milojević, Marija and Damnjanović, Emilija and Nefovska-Danilović, Marija and Marjanović, Miroslav",
year = "2021",
abstract = "Variety of wood species and complexity of their structure make the reliable material properties of cross-laminated timber (CLT) difficult to obtain, which can lead to inaccurate prediction of CLT behavior. Due to high stiffness-to-weight ratio, CLT floors can suffer from vibration serviceability issues. This paper aims to quantify the uncertainties induced by material properties and investigate their effect on vibration performance of CLT floors. Analysis based on Monte Carlo simulations, considering material properties as random variables, is developed. Based on the conducted analysis, appropriate conclusions have been derived.",
publisher = "Society for Materials and Structures Testing of Serbia, Belgrade, University of Belgrade Faculty of Civil Engineering, Association of Structural Engineers of Serbia",
journal = "Gradjevinski materijali i konstrukcije",
title = "Effects of material uncertainties on vibration performance cross laminated timber floors",
pages = "157-153",
number = "3",
volume = "64",
doi = "10.5937/grmk2103153M"
}

Milojević, M., Damnjanović, E., Nefovska-Danilović, M.,& Marjanović, M.. (2021). Effects of material uncertainties on vibration performance cross laminated timber floors. in Gradjevinski materijali i konstrukcije
Society for Materials and Structures Testing of Serbia, Belgrade., 64(3), 153-157.
https://doi.org/10.5937/grmk2103153M

Milojević M, Damnjanović E, Nefovska-Danilović M, Marjanović M. Effects of material uncertainties on vibration performance cross laminated timber floors. in Gradjevinski materijali i konstrukcije. 2021;64(3):153-157.
doi:10.5937/grmk2103153M .

Milojević, Marija, Damnjanović, Emilija, Nefovska-Danilović, Marija, Marjanović, Miroslav, "Effects of material uncertainties on vibration performance cross laminated timber floors" in Gradjevinski materijali i konstrukcije, 64, no. 3 (2021):153-157,
https://doi.org/10.5937/grmk2103153M . .

TY  - CONF
AU  - Milojević, Marija
AU  - Damnjanović, Emilija
AU  - Nefovska-Danilović, Marija
AU  - Marjanović, Miroslav
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2353
AB  - Variety of wood species and complexity of their structure make the reliable material properties of cross-laminated timber (CLT) difficult to obtain, which can lead to inaccurate prediction of CLT behavior. Due to high stiffness-to-weight ratio, CLT floors can suffer from vibration serviceability issues. This paper aims to quantify the uncertainties induced by material properties and investigate their effect on vibration performance of CLT floors. Analysis based on Monte Carlo simulations, considering material properties as random variables, is developed. Based on the conducted analysis, appropriate conclusions have been derived.
AB  - Raznolikost u vrstama drveta, kao i kompleksnost njegove strukture otežava pouzdanu procenu materijalnih karakteristika elemenata od unakrsno lameliranog drveta (CLT), što dovodi do nedovoljno tačnog predviđanja njihovog ponašanja. Problem koji se neretko javlja i narušava funkcionalnost CLT tavanica su vibracije. U ovom radu je izvršena analiza uticaja nepouzdanosti materijalnih karakteristika na vibracije CLT tavanica. Sprovedena je analiza zasnovana na Monte Karlo simulacijama, gde su karakteristike materijala usvojene kao slučajno promenljive veličine. Na osnovu dobijenih rezultata izvedeni su odgovarajući zaključci.
PB  - Univerzitet u Beogradu Građevinski fakultet
PB  - Društvo građevinskih konstruktera Srbije
C3  - 16th Congress hosted by Association of Structural Engineers of Serbia
T1  - Effects of material uncertainties on vibration performance cross laminated timber floors
T1  - Uticaj nepouzdanosti materijala na vibracije tavanica od unakrsno lameliranog drveta
EP  - 490
SP  - 483
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2353
ER  - 

@conference{
author = "Milojević, Marija and Damnjanović, Emilija and Nefovska-Danilović, Marija and Marjanović, Miroslav",
year = "2021",
abstract = "Variety of wood species and complexity of their structure make the reliable material properties of cross-laminated timber (CLT) difficult to obtain, which can lead to inaccurate prediction of CLT behavior. Due to high stiffness-to-weight ratio, CLT floors can suffer from vibration serviceability issues. This paper aims to quantify the uncertainties induced by material properties and investigate their effect on vibration performance of CLT floors. Analysis based on Monte Carlo simulations, considering material properties as random variables, is developed. Based on the conducted analysis, appropriate conclusions have been derived., Raznolikost u vrstama drveta, kao i kompleksnost njegove strukture otežava pouzdanu procenu materijalnih karakteristika elemenata od unakrsno lameliranog drveta (CLT), što dovodi do nedovoljno tačnog predviđanja njihovog ponašanja. Problem koji se neretko javlja i narušava funkcionalnost CLT tavanica su vibracije. U ovom radu je izvršena analiza uticaja nepouzdanosti materijalnih karakteristika na vibracije CLT tavanica. Sprovedena je analiza zasnovana na Monte Karlo simulacijama, gde su karakteristike materijala usvojene kao slučajno promenljive veličine. Na osnovu dobijenih rezultata izvedeni su odgovarajući zaključci.",
publisher = "Univerzitet u Beogradu Građevinski fakultet, Društvo građevinskih konstruktera Srbije",
journal = "16th Congress hosted by Association of Structural Engineers of Serbia",
title = "Effects of material uncertainties on vibration performance cross laminated timber floors, Uticaj nepouzdanosti materijala na vibracije tavanica od unakrsno lameliranog drveta",
pages = "490-483",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2353"
}

Milojević, M., Damnjanović, E., Nefovska-Danilović, M.,& Marjanović, M.. (2021). Effects of material uncertainties on vibration performance cross laminated timber floors. in 16th Congress hosted by Association of Structural Engineers of Serbia
Univerzitet u Beogradu Građevinski fakultet., 483-490.
https://hdl.handle.net/21.15107/rcub_grafar_2353

Milojević M, Damnjanović E, Nefovska-Danilović M, Marjanović M. Effects of material uncertainties on vibration performance cross laminated timber floors. in 16th Congress hosted by Association of Structural Engineers of Serbia. 2021;:483-490.
https://hdl.handle.net/21.15107/rcub_grafar_2353 .

Milojević, Marija, Damnjanović, Emilija, Nefovska-Danilović, Marija, Marjanović, Miroslav, "Effects of material uncertainties on vibration performance cross laminated timber floors" in 16th Congress hosted by Association of Structural Engineers of Serbia (2021):483-490,
https://hdl.handle.net/21.15107/rcub_grafar_2353 .

TY  - CONF
AU  - Damnjanović, Emilija
AU  - Milojević, Marija
AU  - Marjanović, Miroslav
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2354
AB  - U ovom radu sprovedena je analiza inicijacije loma laminatne kompozitne ploče, koristeći slojeviti konačni element zasnovan na Redijevoj slojevitoj teoriji ploča. Sračunato je granično opterećenje na osnovu nekoliko različitih kriterijuma loma koji su implementirani u proračunski model. U radu je izvršena probabilistička analiza loma, u kojoj su materijalne karakteristike i čvrstoća lamine usvojene kao slučajno promenljive veličine. Cilj analize, zasnovane na Monte Karlo metodi, je sračunavanje statističkih parametara graničnog opterećenja kompozitnog laminata. Na osnovu sprovedene analize izvedeni su odgovarajući zaključci.
AB  - The paper deals with the first-ply failure analysis of laminated composite plates using a layered finite element model based on the Full layerwise theory of Reddy (FLWT). Several macroscopic failure criteria have been incorporated into computational model and used to compute the limit load. Since almost no parameter in failure analysis is deterministic, probability prediction of limit load, considering the lamina elastic material properties and strength as random variables is developed. The aim of analysis, based on Monte Carlo Method, is to calculate statistical parameters of the limit load of composite laminate. Appropriate conclusions have been derived based on the conducted analysis.
PB  - Univerzitet u Beogradu Građevinski fakultet
PB  - Društvo građevinskih konstruktera Srbije
C3  - 16th Congress hosted by Association of Structural Engineers of Serbia
T1  - Probabilistic first-ply failure analysis of composite laminates
T1  - Probabilistička analiza početnog loma kompozitnih laminata
EP  - 462
SP  - 453
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2354
ER  - 

@conference{
author = "Damnjanović, Emilija and Milojević, Marija and Marjanović, Miroslav",
year = "2021",
abstract = "U ovom radu sprovedena je analiza inicijacije loma laminatne kompozitne ploče, koristeći slojeviti konačni element zasnovan na Redijevoj slojevitoj teoriji ploča. Sračunato je granično opterećenje na osnovu nekoliko različitih kriterijuma loma koji su implementirani u proračunski model. U radu je izvršena probabilistička analiza loma, u kojoj su materijalne karakteristike i čvrstoća lamine usvojene kao slučajno promenljive veličine. Cilj analize, zasnovane na Monte Karlo metodi, je sračunavanje statističkih parametara graničnog opterećenja kompozitnog laminata. Na osnovu sprovedene analize izvedeni su odgovarajući zaključci., The paper deals with the first-ply failure analysis of laminated composite plates using a layered finite element model based on the Full layerwise theory of Reddy (FLWT). Several macroscopic failure criteria have been incorporated into computational model and used to compute the limit load. Since almost no parameter in failure analysis is deterministic, probability prediction of limit load, considering the lamina elastic material properties and strength as random variables is developed. The aim of analysis, based on Monte Carlo Method, is to calculate statistical parameters of the limit load of composite laminate. Appropriate conclusions have been derived based on the conducted analysis.",
publisher = "Univerzitet u Beogradu Građevinski fakultet, Društvo građevinskih konstruktera Srbije",
journal = "16th Congress hosted by Association of Structural Engineers of Serbia",
title = "Probabilistic first-ply failure analysis of composite laminates, Probabilistička analiza početnog loma kompozitnih laminata",
pages = "462-453",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2354"
}

Damnjanović, E., Milojević, M.,& Marjanović, M.. (2021). Probabilistic first-ply failure analysis of composite laminates. in 16th Congress hosted by Association of Structural Engineers of Serbia
Univerzitet u Beogradu Građevinski fakultet., 453-462.
https://hdl.handle.net/21.15107/rcub_grafar_2354

Damnjanović E, Milojević M, Marjanović M. Probabilistic first-ply failure analysis of composite laminates. in 16th Congress hosted by Association of Structural Engineers of Serbia. 2021;:453-462.
https://hdl.handle.net/21.15107/rcub_grafar_2354 .

Damnjanović, Emilija, Milojević, Marija, Marjanović, Miroslav, "Probabilistic first-ply failure analysis of composite laminates" in 16th Congress hosted by Association of Structural Engineers of Serbia (2021):453-462,
https://hdl.handle.net/21.15107/rcub_grafar_2354 .

TY  - CONF
AU  - Milojević, Marija
AU  - Nefovska-Danilović, Marija
AU  - Živanović, Stana
AU  - Marjanović, Miroslav
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2090
AB  - This paper investigates the effects of material properties (mass density, elastic and shear moduli) on dynamic properties of simply-supported CLT floors (natural frequencies, mode shapes and modal mass). Uncertainty quantification analysis has been carried out based on Monte Carlo simulations by varying material properties. Numerical modelling and analysis of the investigated CLT floors has been performed using finite element models in Abaqus CAE. The results show that uncertain mechanical parameters having significant influence on the dynamic properties are mass density, elastic modulus EL, and shear moduli GLT and GRT, where L, T and R denote longitudinal, tangential and radial direction, respectively.
PB  - European Association for Structural Dynamics
C3  - XI International Conference on Structural Dynamics EURODYN 2020
T1  - Effects of mechanical uncertainties on dynamic properties of cross-laminated timber floors
EP  - 3526
SP  - 3519
VL  - 2
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2090
ER  - 

@conference{
author = "Milojević, Marija and Nefovska-Danilović, Marija and Živanović, Stana and Marjanović, Miroslav",
year = "2020",
abstract = "This paper investigates the effects of material properties (mass density, elastic and shear moduli) on dynamic properties of simply-supported CLT floors (natural frequencies, mode shapes and modal mass). Uncertainty quantification analysis has been carried out based on Monte Carlo simulations by varying material properties. Numerical modelling and analysis of the investigated CLT floors has been performed using finite element models in Abaqus CAE. The results show that uncertain mechanical parameters having significant influence on the dynamic properties are mass density, elastic modulus EL, and shear moduli GLT and GRT, where L, T and R denote longitudinal, tangential and radial direction, respectively.",
publisher = "European Association for Structural Dynamics",
journal = "XI International Conference on Structural Dynamics EURODYN 2020",
title = "Effects of mechanical uncertainties on dynamic properties of cross-laminated timber floors",
pages = "3526-3519",
volume = "2",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2090"
}

Milojević, M., Nefovska-Danilović, M., Živanović, S.,& Marjanović, M.. (2020). Effects of mechanical uncertainties on dynamic properties of cross-laminated timber floors. in XI International Conference on Structural Dynamics EURODYN 2020
European Association for Structural Dynamics., 2, 3519-3526.
https://hdl.handle.net/21.15107/rcub_grafar_2090

Milojević M, Nefovska-Danilović M, Živanović S, Marjanović M. Effects of mechanical uncertainties on dynamic properties of cross-laminated timber floors. in XI International Conference on Structural Dynamics EURODYN 2020. 2020;2:3519-3526.
https://hdl.handle.net/21.15107/rcub_grafar_2090 .

Milojević, Marija, Nefovska-Danilović, Marija, Živanović, Stana, Marjanović, Miroslav, "Effects of mechanical uncertainties on dynamic properties of cross-laminated timber floors" in XI International Conference on Structural Dynamics EURODYN 2020, 2 (2020):3519-3526,
https://hdl.handle.net/21.15107/rcub_grafar_2090 .

TY  - CONF
AU  - Milojević, Marija
AU  - Nefovska-Danilović, Marija
AU  - Marjanović, Miroslav
PY  - 2019
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1726
AB  - Cracks are the most common type of structural damage in many engineering structures,
introducing the local change in stiffness of structural elements and changing the dynamic
properties of the structure. Therefore, it is of great importance to detect and locate the existing
structural damage in its early phase to prevent crack propagation.
In the paper, free vibration analysis of beams and frames with multiple cracks has been
carried out. First, the dynamic stiffness matrix of beam element with multiple cracks based on
Bernoulli-Euler theory has been derived. Using the developed model, extensive free vibration
study of multiple-cracked frame structures has been conducted. Original Matlab code has
been developed for the derivation of natural frequencies and plot of mode shapes.
After the validation of the model against the existing data from the literature, several
benchmark examples are provided. As expected, increasing size and number of cracks lead to
decrease of natural frequencies due to the local stiffness degradation.
C3  - Proceedings / The 7th International Congress of Serbian Society of Mechanics, Sremski Karlovci, June 24-26, 2019, 2019
T1  - Free vibration analysis of multiple cracked frames using dynamic stiffness method
SP  - s5a
UR  - https://hdl.handle.net/21.15107/rcub_grafar_1726
ER  - 

@conference{
author = "Milojević, Marija and Nefovska-Danilović, Marija and Marjanović, Miroslav",
year = "2019",
abstract = "Cracks are the most common type of structural damage in many engineering structures,
introducing the local change in stiffness of structural elements and changing the dynamic
properties of the structure. Therefore, it is of great importance to detect and locate the existing
structural damage in its early phase to prevent crack propagation.
In the paper, free vibration analysis of beams and frames with multiple cracks has been
carried out. First, the dynamic stiffness matrix of beam element with multiple cracks based on
Bernoulli-Euler theory has been derived. Using the developed model, extensive free vibration
study of multiple-cracked frame structures has been conducted. Original Matlab code has
been developed for the derivation of natural frequencies and plot of mode shapes.
After the validation of the model against the existing data from the literature, several
benchmark examples are provided. As expected, increasing size and number of cracks lead to
decrease of natural frequencies due to the local stiffness degradation.",
journal = "Proceedings / The 7th International Congress of Serbian Society of Mechanics, Sremski Karlovci, June 24-26, 2019, 2019",
title = "Free vibration analysis of multiple cracked frames using dynamic stiffness method",
pages = "s5a",
url = "https://hdl.handle.net/21.15107/rcub_grafar_1726"
}

Milojević, M., Nefovska-Danilović, M.,& Marjanović, M.. (2019). Free vibration analysis of multiple cracked frames using dynamic stiffness method. in Proceedings / The 7th International Congress of Serbian Society of Mechanics, Sremski Karlovci, June 24-26, 2019, 2019, s5a.
https://hdl.handle.net/21.15107/rcub_grafar_1726

Milojević M, Nefovska-Danilović M, Marjanović M. Free vibration analysis of multiple cracked frames using dynamic stiffness method. in Proceedings / The 7th International Congress of Serbian Society of Mechanics, Sremski Karlovci, June 24-26, 2019, 2019. 2019;:s5a.
https://hdl.handle.net/21.15107/rcub_grafar_1726 .

Milojević, Marija, Nefovska-Danilović, Marija, Marjanović, Miroslav, "Free vibration analysis of multiple cracked frames using dynamic stiffness method" in Proceedings / The 7th International Congress of Serbian Society of Mechanics, Sremski Karlovci, June 24-26, 2019, 2019 (2019):s5a,
https://hdl.handle.net/21.15107/rcub_grafar_1726 .