TY  - JOUR
AU  - Stojić, Dragoslav
AU  - Nestorović, Tamara
AU  - Marković, Nemanja
AU  - Marjanović, Miroslav
PY  - 2018
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/941
AB  - This paper presents an experimental-numerical analysis of damage localization of concrete plate-like elements on the basis of hybrid approach. The proposed hybrid approach uses the fast discrete wavelet transform, energy approach, and time of flight criterion for the purpose of localization of single and multidamage problems inside or on the periphery of concrete elements. Verification of the proposed damage localization approach has been performed under laboratory conditions using a laser scanning-based system with piezoelectric excitation of the wave propagation. Numerical simulation of the wave propagation is performed using the explicit finite element method using 3D models with linear-elastic material model of concrete with Rayleigh damping. The Rayleigh damping coefficients are determined on the basis of experimental data and implemented in numerical models. Validation of the numerical model is conducted, based on the comparison with sensor output signals obtained through experimental measuring and a very good agreement of results is obtained. The proposed hybrid approach to damage localization is verified using 15 different models/specimens, varying the number, shape (circular or notched), and position of damage, as well as the number and placement of actuators/sensors. For all the analyzed scenarios, the hybrid approach successfully localized the damage even for the least number of used sensor positions. In the models with the circular damage, the damage image created on the basis of the hybrid approach is almost identical to the actual shape of the damage, indicating a good potential of the method for damage localization.
PB  - John Wiley and Sons Ltd
T2  - Structural Control & Health Monitoring
T1  - Experimental and numerical research on damage localization in plate-like concrete structures using hybrid approach
IS  - 9
VL  - 25
DO  - 10.1002/stc.2214
ER  - 

@article{
author = "Stojić, Dragoslav and Nestorović, Tamara and Marković, Nemanja and Marjanović, Miroslav",
year = "2018",
abstract = "This paper presents an experimental-numerical analysis of damage localization of concrete plate-like elements on the basis of hybrid approach. The proposed hybrid approach uses the fast discrete wavelet transform, energy approach, and time of flight criterion for the purpose of localization of single and multidamage problems inside or on the periphery of concrete elements. Verification of the proposed damage localization approach has been performed under laboratory conditions using a laser scanning-based system with piezoelectric excitation of the wave propagation. Numerical simulation of the wave propagation is performed using the explicit finite element method using 3D models with linear-elastic material model of concrete with Rayleigh damping. The Rayleigh damping coefficients are determined on the basis of experimental data and implemented in numerical models. Validation of the numerical model is conducted, based on the comparison with sensor output signals obtained through experimental measuring and a very good agreement of results is obtained. The proposed hybrid approach to damage localization is verified using 15 different models/specimens, varying the number, shape (circular or notched), and position of damage, as well as the number and placement of actuators/sensors. For all the analyzed scenarios, the hybrid approach successfully localized the damage even for the least number of used sensor positions. In the models with the circular damage, the damage image created on the basis of the hybrid approach is almost identical to the actual shape of the damage, indicating a good potential of the method for damage localization.",
publisher = "John Wiley and Sons Ltd",
journal = "Structural Control & Health Monitoring",
title = "Experimental and numerical research on damage localization in plate-like concrete structures using hybrid approach",
number = "9",
volume = "25",
doi = "10.1002/stc.2214"
}

Stojić, D., Nestorović, T., Marković, N.,& Marjanović, M.. (2018). Experimental and numerical research on damage localization in plate-like concrete structures using hybrid approach. in Structural Control & Health Monitoring
John Wiley and Sons Ltd., 25(9).
https://doi.org/10.1002/stc.2214

Stojić D, Nestorović T, Marković N, Marjanović M. Experimental and numerical research on damage localization in plate-like concrete structures using hybrid approach. in Structural Control & Health Monitoring. 2018;25(9).
doi:10.1002/stc.2214 .

Stojić, Dragoslav, Nestorović, Tamara, Marković, Nemanja, Marjanović, Miroslav, "Experimental and numerical research on damage localization in plate-like concrete structures using hybrid approach" in Structural Control & Health Monitoring, 25, no. 9 (2018),
https://doi.org/10.1002/stc.2214 . .

TY  - JOUR
AU  - Marjanović, Miroslav
AU  - Vuksanović, Đorđe
AU  - Meschke, Guenther
PY  - 2015
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/679
AB  - In the paper, a computational model for the transient response of laminated composite and sandwich plates with existing zones of partial delamination, subjected to dynamic pulse loading is proposed. Laminated composite and sandwich plates are modeled using the extended version of the Generalized Laminated Plate Theory. For the numerical solution, the finite element method with layered finite elements is used. Delamination between individual layers is considered as discontinuities in the displacement field using Heaviside step functions. Since the status of delaminated layers may change in dynamic loading conditions, leading to the so-called "breathing" phenomenon, contact conditions allowing for the opening/closing of delaminated layers are proposed. Nonlinear kinematics in the sense of small strains and moderately large rotations is accounted for according to the von Karman assumptions. The material of the individual layers is assumed as orthotropic and linearly elastic. The governing spatial temporal partial differential equations are integrated in time by means of the implicit Newmarlc's method. After verification of the proposed model for intact plates, the effect of the size and the position of embedded delamination zones on the transient response of geometrical nonlinearity of composite and sandwich plates is investigated numerically by means of a number of numerical applications.
PB  - Elsevier Ltd
T2  - Composite Structures
T1  - Geometrically nonlinear transient analysis of delaminated composite and sandwich plates using a layerwise displacement model with contact conditions
EP  - 81
SP  - 67
VL  - 122
DO  - 10.1016/j.compstruct.2014.11.028
ER  - 

@article{
author = "Marjanović, Miroslav and Vuksanović, Đorđe and Meschke, Guenther",
year = "2015",
abstract = "In the paper, a computational model for the transient response of laminated composite and sandwich plates with existing zones of partial delamination, subjected to dynamic pulse loading is proposed. Laminated composite and sandwich plates are modeled using the extended version of the Generalized Laminated Plate Theory. For the numerical solution, the finite element method with layered finite elements is used. Delamination between individual layers is considered as discontinuities in the displacement field using Heaviside step functions. Since the status of delaminated layers may change in dynamic loading conditions, leading to the so-called "breathing" phenomenon, contact conditions allowing for the opening/closing of delaminated layers are proposed. Nonlinear kinematics in the sense of small strains and moderately large rotations is accounted for according to the von Karman assumptions. The material of the individual layers is assumed as orthotropic and linearly elastic. The governing spatial temporal partial differential equations are integrated in time by means of the implicit Newmarlc's method. After verification of the proposed model for intact plates, the effect of the size and the position of embedded delamination zones on the transient response of geometrical nonlinearity of composite and sandwich plates is investigated numerically by means of a number of numerical applications.",
publisher = "Elsevier Ltd",
journal = "Composite Structures",
title = "Geometrically nonlinear transient analysis of delaminated composite and sandwich plates using a layerwise displacement model with contact conditions",
pages = "81-67",
volume = "122",
doi = "10.1016/j.compstruct.2014.11.028"
}

Marjanović, M., Vuksanović, Đ.,& Meschke, G.. (2015). Geometrically nonlinear transient analysis of delaminated composite and sandwich plates using a layerwise displacement model with contact conditions. in Composite Structures
Elsevier Ltd., 122, 67-81.
https://doi.org/10.1016/j.compstruct.2014.11.028

Marjanović M, Vuksanović Đ, Meschke G. Geometrically nonlinear transient analysis of delaminated composite and sandwich plates using a layerwise displacement model with contact conditions. in Composite Structures. 2015;122:67-81.
doi:10.1016/j.compstruct.2014.11.028 .

Marjanović, Miroslav, Vuksanović, Đorđe, Meschke, Guenther, "Geometrically nonlinear transient analysis of delaminated composite and sandwich plates using a layerwise displacement model with contact conditions" in Composite Structures, 122 (2015):67-81,
https://doi.org/10.1016/j.compstruct.2014.11.028 . .

TY  - JOUR
AU  - Vuksanović, Đorđe
AU  - Marjanović, Miroslav
PY  - 2015
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/648
AB  - Laminar composites are modern engineering materials widely used in the mechanical and civil engineering. In the paper, some recent advances in a numerical analysis of laminated composite and sandwich plates and shells of different shapes, with existing zones of partial delamination, are presented. The layered finite elements, based on the extended version of the Generalized Laminated Plate Theory of Reddy, are applied for the numerical solution of several structural problems. After the verification of the proposed model for intact structures using the existing data from the literature, the effects of the size and the position of embedded delamination zones on the structural response of laminated structures are investigated numerically by means of a variety of numerical applications.
AB  - Laminatni kompoziti su moderni materijali koji se široko primenjuju u mašinstvu i građevinarstvu. U ovom radu prikazani su odgovarajući moderni pristupi u numeričkoj analizi laminatnih kompozitnih i sendvič-ploča i ljuski s delaminacijom u pojedinim delovima konstrukcije. Za određivanje numeričkog rešenja različitih problema primenjeni su slojeviti konačni elementi bazirani na Reddy-evoj opštoj laminatnoj teoriji ploča. Nakon verifikacije postojećeg modela za konstrukcije bez oštećenja (primenom postojećih podataka iz literature), putem različitih numeričkih primera, analizirani su efekti veličine i položaja delaminacija na odgovor oštećenih laminatnih konstrukcija.
PB  - Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd
T2  - Građevinski materijali i konstrukcije
T1  - Application of layered finite elements in the numerical analysis of laminated composite and sandwich structures with delaminations
T1  - Primena slojevitih konačnih elemenata u numeričkoj analizi laminatnih kompozitnih i sendvič-ploča i ljuski s delaminacijama
EP  - 76
IS  - 1
SP  - 59
VL  - 58
DO  - 10.5937/grmk1501059V
ER  - 

@article{
author = "Vuksanović, Đorđe and Marjanović, Miroslav",
year = "2015",
abstract = "Laminar composites are modern engineering materials widely used in the mechanical and civil engineering. In the paper, some recent advances in a numerical analysis of laminated composite and sandwich plates and shells of different shapes, with existing zones of partial delamination, are presented. The layered finite elements, based on the extended version of the Generalized Laminated Plate Theory of Reddy, are applied for the numerical solution of several structural problems. After the verification of the proposed model for intact structures using the existing data from the literature, the effects of the size and the position of embedded delamination zones on the structural response of laminated structures are investigated numerically by means of a variety of numerical applications., Laminatni kompoziti su moderni materijali koji se široko primenjuju u mašinstvu i građevinarstvu. U ovom radu prikazani su odgovarajući moderni pristupi u numeričkoj analizi laminatnih kompozitnih i sendvič-ploča i ljuski s delaminacijom u pojedinim delovima konstrukcije. Za određivanje numeričkog rešenja različitih problema primenjeni su slojeviti konačni elementi bazirani na Reddy-evoj opštoj laminatnoj teoriji ploča. Nakon verifikacije postojećeg modela za konstrukcije bez oštećenja (primenom postojećih podataka iz literature), putem različitih numeričkih primera, analizirani su efekti veličine i položaja delaminacija na odgovor oštećenih laminatnih konstrukcija.",
publisher = "Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd",
journal = "Građevinski materijali i konstrukcije",
title = "Application of layered finite elements in the numerical analysis of laminated composite and sandwich structures with delaminations, Primena slojevitih konačnih elemenata u numeričkoj analizi laminatnih kompozitnih i sendvič-ploča i ljuski s delaminacijama",
pages = "76-59",
number = "1",
volume = "58",
doi = "10.5937/grmk1501059V"
}

Vuksanović, Đ.,& Marjanović, M.. (2015). Application of layered finite elements in the numerical analysis of laminated composite and sandwich structures with delaminations. in Građevinski materijali i konstrukcije
Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd., 58(1), 59-76.
https://doi.org/10.5937/grmk1501059V

Vuksanović Đ, Marjanović M. Application of layered finite elements in the numerical analysis of laminated composite and sandwich structures with delaminations. in Građevinski materijali i konstrukcije. 2015;58(1):59-76.
doi:10.5937/grmk1501059V .

Vuksanović, Đorđe, Marjanović, Miroslav, "Application of layered finite elements in the numerical analysis of laminated composite and sandwich structures with delaminations" in Građevinski materijali i konstrukcije, 58, no. 1 (2015):59-76,
https://doi.org/10.5937/grmk1501059V . .