TY  - JOUR
AU  - Marjanović, Miroslav
AU  - Meschke, Guenther
AU  - Vuksanović, Đorđe
PY  - 2016
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/767
AB  - In the paper, a simple and efficient algorithm to track a moving delamination front of arbitrary shape, using a laminated finite plate element model in conjunction with the Virtual Crack Closure Technique (VCCT), is proposed. The solution requires the calculation of the virtually closed area in front of the delamination, which is approximated by means of a 6-node-polygon, the delamination opening behind this front and the reaction forces in the nodes at the delamination front. These quantities are calculated in a local coordinate system (LCS) defined in the nodes along the delamination front. Using the proposed algorithm, arbitrary meshes composed of 4- and 9-node quadrilateral finite elements can be considered. The proposed model is developed in the context of a layered finite element plate model. To prevent inter-laminar penetration of adjacent layers in the delaminated region, an algorithm recently proposed by Marjanovic et al. (2015) is adopted. The model performance is demonstrated by re-analyses of the Double-Cantilever-Beam problem, for which analytical solutions exist, and by transient analyses of laminated composite plates with propagating delamination fronts.
PB  - Elsevier Ltd
T2  - Composite Structures
T1  - A finite element model for propagating delamination in laminated composite plates based on the Virtual Crack Closure method
EP  - 19
SP  - 8
VL  - 150
DO  - 10.1016/j.compstruct.2016.04.044
ER  - 

@article{
author = "Marjanović, Miroslav and Meschke, Guenther and Vuksanović, Đorđe",
year = "2016",
abstract = "In the paper, a simple and efficient algorithm to track a moving delamination front of arbitrary shape, using a laminated finite plate element model in conjunction with the Virtual Crack Closure Technique (VCCT), is proposed. The solution requires the calculation of the virtually closed area in front of the delamination, which is approximated by means of a 6-node-polygon, the delamination opening behind this front and the reaction forces in the nodes at the delamination front. These quantities are calculated in a local coordinate system (LCS) defined in the nodes along the delamination front. Using the proposed algorithm, arbitrary meshes composed of 4- and 9-node quadrilateral finite elements can be considered. The proposed model is developed in the context of a layered finite element plate model. To prevent inter-laminar penetration of adjacent layers in the delaminated region, an algorithm recently proposed by Marjanovic et al. (2015) is adopted. The model performance is demonstrated by re-analyses of the Double-Cantilever-Beam problem, for which analytical solutions exist, and by transient analyses of laminated composite plates with propagating delamination fronts.",
publisher = "Elsevier Ltd",
journal = "Composite Structures",
title = "A finite element model for propagating delamination in laminated composite plates based on the Virtual Crack Closure method",
pages = "19-8",
volume = "150",
doi = "10.1016/j.compstruct.2016.04.044"
}

Marjanović, M., Meschke, G.,& Vuksanović, Đ.. (2016). A finite element model for propagating delamination in laminated composite plates based on the Virtual Crack Closure method. in Composite Structures
Elsevier Ltd., 150, 8-19.
https://doi.org/10.1016/j.compstruct.2016.04.044

Marjanović M, Meschke G, Vuksanović Đ. A finite element model for propagating delamination in laminated composite plates based on the Virtual Crack Closure method. in Composite Structures. 2016;150:8-19.
doi:10.1016/j.compstruct.2016.04.044 .

Marjanović, Miroslav, Meschke, Guenther, Vuksanović, Đorđe, "A finite element model for propagating delamination in laminated composite plates based on the Virtual Crack Closure method" in Composite Structures, 150 (2016):8-19,
https://doi.org/10.1016/j.compstruct.2016.04.044 . .

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 . .