Determination of Mode I fracture properties of European spruce
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2023
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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.
Ključne reči:
Mode I fracture / wood / DCB / DIC / R curveIzvor:
Wood Research, 2023, 68, 2, 334-347Finansiranje / projekti:
- Science Fund of the Republic of Serbia, Serbian Science and Diaspora Collaboration Program: Knowledge Exchange Vouchers: Hybrid structures and connection of timber and FRP
Institucija/grupa
GraFarTY - 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 . .