Numerical modelling of end-notched glulam beams reinforced with GFRP bars
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2021
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Load carrying capacity of end-notched timber beams can be significantly decreased depending on the geometry of notches. Concentration of tensile stresses perpendicular to grain and shear stresses at the notch corner can cause crack opening. Since uncontrollable crack growth leads to premature failure of notched timber elements, reinforcement is advisable. This paper presents a finite element based numerical analysis of bending behaviour of endnotched glulam beams reinforced with GFRP (Glass Fibre Reinforced Polymer) bars developed in commercial software
Abaqus. Cohesive Zone Modelling (CZM) is employed to simulate the crack growth phenomenon. Verification of the proposed model is done through comparison with experimental research. Fairly good agreement between numerical and experimental results proved that the developed model is successful in predicting the behaviour of reinforced notched timber beams. The presented model can be used for further parametric analyses and serve as a basi...s for investigation of other types and positions of reinforcement, while being a useful tool for development of appropriate analytical design methods for reinforced end-notched timber elements.
Ključne reči:
Glulam / Beam / Notch / GFRP bars / FEMIzvor:
Proceedings of World Conference on Timber Engineering 2021, 2021Izdavač:
- Centro UC de Innovacion en Madera
Institucija/grupa
GraFarTY - CONF AU - Todorović, Marija AU - Glišović, Ivan AU - Stevanović, Boško AU - Stevanović, Tijana PY - 2021 UR - https://grafar.grf.bg.ac.rs/handle/123456789/2435 AB - Load carrying capacity of end-notched timber beams can be significantly decreased depending on the geometry of notches. Concentration of tensile stresses perpendicular to grain and shear stresses at the notch corner can cause crack opening. Since uncontrollable crack growth leads to premature failure of notched timber elements, reinforcement is advisable. This paper presents a finite element based numerical analysis of bending behaviour of endnotched glulam beams reinforced with GFRP (Glass Fibre Reinforced Polymer) bars developed in commercial software Abaqus. Cohesive Zone Modelling (CZM) is employed to simulate the crack growth phenomenon. Verification of the proposed model is done through comparison with experimental research. Fairly good agreement between numerical and experimental results proved that the developed model is successful in predicting the behaviour of reinforced notched timber beams. The presented model can be used for further parametric analyses and serve as a basis for investigation of other types and positions of reinforcement, while being a useful tool for development of appropriate analytical design methods for reinforced end-notched timber elements. PB - Centro UC de Innovacion en Madera C3 - Proceedings of World Conference on Timber Engineering 2021 T1 - Numerical modelling of end-notched glulam beams reinforced with GFRP bars UR - https://hdl.handle.net/21.15107/rcub_grafar_2435 ER -
@conference{ author = "Todorović, Marija and Glišović, Ivan and Stevanović, Boško and Stevanović, Tijana", year = "2021", abstract = "Load carrying capacity of end-notched timber beams can be significantly decreased depending on the geometry of notches. Concentration of tensile stresses perpendicular to grain and shear stresses at the notch corner can cause crack opening. Since uncontrollable crack growth leads to premature failure of notched timber elements, reinforcement is advisable. This paper presents a finite element based numerical analysis of bending behaviour of endnotched glulam beams reinforced with GFRP (Glass Fibre Reinforced Polymer) bars developed in commercial software Abaqus. Cohesive Zone Modelling (CZM) is employed to simulate the crack growth phenomenon. Verification of the proposed model is done through comparison with experimental research. Fairly good agreement between numerical and experimental results proved that the developed model is successful in predicting the behaviour of reinforced notched timber beams. The presented model can be used for further parametric analyses and serve as a basis for investigation of other types and positions of reinforcement, while being a useful tool for development of appropriate analytical design methods for reinforced end-notched timber elements.", publisher = "Centro UC de Innovacion en Madera", journal = "Proceedings of World Conference on Timber Engineering 2021", title = "Numerical modelling of end-notched glulam beams reinforced with GFRP bars", url = "https://hdl.handle.net/21.15107/rcub_grafar_2435" }
Todorović, M., Glišović, I., Stevanović, B.,& Stevanović, T.. (2021). Numerical modelling of end-notched glulam beams reinforced with GFRP bars. in Proceedings of World Conference on Timber Engineering 2021 Centro UC de Innovacion en Madera.. https://hdl.handle.net/21.15107/rcub_grafar_2435
Todorović M, Glišović I, Stevanović B, Stevanović T. Numerical modelling of end-notched glulam beams reinforced with GFRP bars. in Proceedings of World Conference on Timber Engineering 2021. 2021;. https://hdl.handle.net/21.15107/rcub_grafar_2435 .
Todorović, Marija, Glišović, Ivan, Stevanović, Boško, Stevanović, Tijana, "Numerical modelling of end-notched glulam beams reinforced with GFRP bars" in Proceedings of World Conference on Timber Engineering 2021 (2021), https://hdl.handle.net/21.15107/rcub_grafar_2435 .