Numerical assessment of stress intensity factors at tips of multi-site cracks in unstiffened panel
2017
Аутори
Aldarwish, MustafaGrbović, Aleksandar
Kastratović, Gordana
Sedmak, Aleksandar
Vidanović, Nenad
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The aim of this paper is to establish and demonstrate diverse capacity and performances of different numerical methods for calculating stress intensity factors' (SIFs) histories versus crack length for problems involving multiple, interacting cracks resulting from multiple site damage (MSD). A typical aero structural configuration is analysed: unstiffened flat panel made of aluminium Al 2024-T3, containing 11 holes, each of which is a site for crack growth. Analysed model makes a complex configuration with 22 cracks, propagating at the same time. The computations are carried out in FRANC2D software which is FEM based and with superposition based approximate method. The comparison of the results has shown that obtained solutions can be used for SIF predictions with acceptable accuracy.
Кључне речи:
unstiffened panel / multi-site cracks / fatigue crack growthИзвор:
Structural Integrity and Life, 2017, 17, 1, 11-14Издавач:
- Institut za ispitivanje materijala, Beograd
Институција/група
Inovacioni centarTY - JOUR AU - Aldarwish, Mustafa AU - Grbović, Aleksandar AU - Kastratović, Gordana AU - Sedmak, Aleksandar AU - Vidanović, Nenad PY - 2017 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2739 AB - The aim of this paper is to establish and demonstrate diverse capacity and performances of different numerical methods for calculating stress intensity factors' (SIFs) histories versus crack length for problems involving multiple, interacting cracks resulting from multiple site damage (MSD). A typical aero structural configuration is analysed: unstiffened flat panel made of aluminium Al 2024-T3, containing 11 holes, each of which is a site for crack growth. Analysed model makes a complex configuration with 22 cracks, propagating at the same time. The computations are carried out in FRANC2D software which is FEM based and with superposition based approximate method. The comparison of the results has shown that obtained solutions can be used for SIF predictions with acceptable accuracy. PB - Institut za ispitivanje materijala, Beograd T2 - Structural Integrity and Life T1 - Numerical assessment of stress intensity factors at tips of multi-site cracks in unstiffened panel EP - 14 IS - 1 SP - 11 VL - 17 UR - https://hdl.handle.net/21.15107/rcub_machinery_2739 ER -
@article{ author = "Aldarwish, Mustafa and Grbović, Aleksandar and Kastratović, Gordana and Sedmak, Aleksandar and Vidanović, Nenad", year = "2017", abstract = "The aim of this paper is to establish and demonstrate diverse capacity and performances of different numerical methods for calculating stress intensity factors' (SIFs) histories versus crack length for problems involving multiple, interacting cracks resulting from multiple site damage (MSD). A typical aero structural configuration is analysed: unstiffened flat panel made of aluminium Al 2024-T3, containing 11 holes, each of which is a site for crack growth. Analysed model makes a complex configuration with 22 cracks, propagating at the same time. The computations are carried out in FRANC2D software which is FEM based and with superposition based approximate method. The comparison of the results has shown that obtained solutions can be used for SIF predictions with acceptable accuracy.", publisher = "Institut za ispitivanje materijala, Beograd", journal = "Structural Integrity and Life", title = "Numerical assessment of stress intensity factors at tips of multi-site cracks in unstiffened panel", pages = "14-11", number = "1", volume = "17", url = "https://hdl.handle.net/21.15107/rcub_machinery_2739" }
Aldarwish, M., Grbović, A., Kastratović, G., Sedmak, A.,& Vidanović, N.. (2017). Numerical assessment of stress intensity factors at tips of multi-site cracks in unstiffened panel. in Structural Integrity and Life Institut za ispitivanje materijala, Beograd., 17(1), 11-14. https://hdl.handle.net/21.15107/rcub_machinery_2739
Aldarwish M, Grbović A, Kastratović G, Sedmak A, Vidanović N. Numerical assessment of stress intensity factors at tips of multi-site cracks in unstiffened panel. in Structural Integrity and Life. 2017;17(1):11-14. https://hdl.handle.net/21.15107/rcub_machinery_2739 .
Aldarwish, Mustafa, Grbović, Aleksandar, Kastratović, Gordana, Sedmak, Aleksandar, Vidanović, Nenad, "Numerical assessment of stress intensity factors at tips of multi-site cracks in unstiffened panel" in Structural Integrity and Life, 17, no. 1 (2017):11-14, https://hdl.handle.net/21.15107/rcub_machinery_2739 .