TY  - JOUR
AU  - Todorović, Marija
AU  - Koetsier, Mathieu
AU  - Simović, Nađa
AU  - Glišović, Ivan
AU  - Pavlović, Marko
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3089
AB  - In this paper an efficient procedure for obtaining a cohesive law for Mode I timber fracture (crack opening), based on the Double Cantilever Beam (DCB) tests is given. DCB tests were performed on ten European spruce specimens in order to determine the energy release rate vs crack length (R curves). Two crucial parameters - crack length during the experiment and the crack tip opening displacement were obtained using 2D Digital Image Correlation (DIC) technique. In order to determine accurate fracture resistance (R curve), procedure which includes calculating cumulative released energy was employed. The cohesive law for Mode I fracture of wood was obtained by differentiation of the strain energy release rate as a function of the crack tip opening displacement. This cohesive law is further implemented in the successful numerical modelling of failure modes in large-scale end-notched glulam beams which were experimentally tested in four-point bending configuration.
T2  - Wood Research
T1  - Determination of Mode I fracture properties of European spruce
EP  - 347
IS  - 2
SP  - 334
VL  - 68
DO  - 10.37763/wr.1336-4561/68.2.334347
ER  - 

@article{
author = "Todorović, Marija and Koetsier, Mathieu and Simović, Nađa and Glišović, Ivan and Pavlović, Marko",
year = "2023",
abstract = "In this paper an efficient procedure for obtaining a cohesive law for Mode I timber fracture (crack opening), based on the Double Cantilever Beam (DCB) tests is given. DCB tests were performed on ten European spruce specimens in order to determine the energy release rate vs crack length (R curves). Two crucial parameters - crack length during the experiment and the crack tip opening displacement were obtained using 2D Digital Image Correlation (DIC) technique. In order to determine accurate fracture resistance (R curve), procedure which includes calculating cumulative released energy was employed. The cohesive law for Mode I fracture of wood was obtained by differentiation of the strain energy release rate as a function of the crack tip opening displacement. This cohesive law is further implemented in the successful numerical modelling of failure modes in large-scale end-notched glulam beams which were experimentally tested in four-point bending configuration.",
journal = "Wood Research",
title = "Determination of Mode I fracture properties of European spruce",
pages = "347-334",
number = "2",
volume = "68",
doi = "10.37763/wr.1336-4561/68.2.334347"
}

Todorović, M., Koetsier, M., Simović, N., Glišović, I.,& Pavlović, M.. (2023). Determination of Mode I fracture properties of European spruce. in Wood Research, 68(2), 334-347.
https://doi.org/10.37763/wr.1336-4561/68.2.334347

Todorović M, Koetsier M, Simović N, Glišović I, Pavlović M. Determination of Mode I fracture properties of European spruce. in Wood Research. 2023;68(2):334-347.
doi:10.37763/wr.1336-4561/68.2.334347 .

Todorović, Marija, Koetsier, Mathieu, Simović, Nađa, Glišović, Ivan, Pavlović, Marko, "Determination of Mode I fracture properties of European spruce" in Wood Research, 68, no. 2 (2023):334-347,
https://doi.org/10.37763/wr.1336-4561/68.2.334347 . .

TY  - CONF
AU  - Todorović, Marija
AU  - Pavlović, Marko
AU  - Glišović, Ivan
AU  - Koetsier, Mathieu
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3124
AB  - This paper presents an experimental procedure for obtaining the fracture resistance (R curve) of solid wood specimens made of spruce. Double Cantilever Beam (DCB) tests were performed in order to determine energy release rate vs crack length in Mode I wood fracture (crack opening). Ten wood specimens were loaded using the Universal Testing Machine and force-displacement curves were recorded. The most important parameter - crack length was monitored as the crack propagates using Digital Image Correlation (DIC) method. In order to obtain accurate R curve results, procedure which includes calculating cumulative released energy was employed. The cohesive energy Gf was determined based on the R curves. These results can further be analysed in order to obtain cohesive law for Mode I fracture of wood.
C3  - Proceedings from the 13th World Conference on Timber Engineering 2023, Oslo
T1  - Experimental determination of R curves for European spruce using DCB tests
DO  - 10.52202/069179-0055
ER  - 

@conference{
author = "Todorović, Marija and Pavlović, Marko and Glišović, Ivan and Koetsier, Mathieu",
year = "2023",
abstract = "This paper presents an experimental procedure for obtaining the fracture resistance (R curve) of solid wood specimens made of spruce. Double Cantilever Beam (DCB) tests were performed in order to determine energy release rate vs crack length in Mode I wood fracture (crack opening). Ten wood specimens were loaded using the Universal Testing Machine and force-displacement curves were recorded. The most important parameter - crack length was monitored as the crack propagates using Digital Image Correlation (DIC) method. In order to obtain accurate R curve results, procedure which includes calculating cumulative released energy was employed. The cohesive energy Gf was determined based on the R curves. These results can further be analysed in order to obtain cohesive law for Mode I fracture of wood.",
journal = "Proceedings from the 13th World Conference on Timber Engineering 2023, Oslo",
title = "Experimental determination of R curves for European spruce using DCB tests",
doi = "10.52202/069179-0055"
}

Todorović, M., Pavlović, M., Glišović, I.,& Koetsier, M.. (2023). Experimental determination of R curves for European spruce using DCB tests. in Proceedings from the 13th World Conference on Timber Engineering 2023, Oslo.
https://doi.org/10.52202/069179-0055

Todorović M, Pavlović M, Glišović I, Koetsier M. Experimental determination of R curves for European spruce using DCB tests. in Proceedings from the 13th World Conference on Timber Engineering 2023, Oslo. 2023;.
doi:10.52202/069179-0055 .

Todorović, Marija, Pavlović, Marko, Glišović, Ivan, Koetsier, Mathieu, "Experimental determination of R curves for European spruce using DCB tests" in Proceedings from the 13th World Conference on Timber Engineering 2023, Oslo (2023),
https://doi.org/10.52202/069179-0055 . .