Stress Intensity Factors Evaluation at Tips of Multi-Site Cracks in Unstiffened 2024-T3 Aluminium Panel Using XFEM
2018
Authors
Aldarwish, MustafaGrbović, Aleksandar
Kastratović, Gordana
Sedmak, Aleksandar
Lazić, Mirjana M.
Article (Published version)
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The aim of this paper was to establish and demonstrate significant capacity and performances of extended finite element method (XFEM) to calculate 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 was 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 unique 3D configuration with 22 cracks, propagating at the same time. Short theoretical background information is provided on the XFEM, as well as representation of cracks and SIFs computation. The computations were carried out in Morfeo/Crack for Abaqus software which relies on the implementation of XFEM. The accuracy of these computations was verified through FRANC2D/L software and superposition based approximate method. The conducted analysis showed that XFEM is efficient tool for the simulation... of crack propagation even in the case of 3D configurations with MSD, and that the obtained solutions can be used for the prediction of SIFs in analysed MSD configuration with acceptable accuracy.
Keywords:
XFEM / stress intensity factor / multiple site damage / crack propagationSource:
Tehnički vjesnik, 2018, 25, 6, 1616-1622Publisher:
- Univ Osijek, Tech Fac, Slavonski Brod
DOI: 10.17559/TV-20170309133824
ISSN: 1330-3651
WoS: 000453261600007
Scopus: 2-s2.0-85059406174
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Inovacioni centarTY - JOUR AU - Aldarwish, Mustafa AU - Grbović, Aleksandar AU - Kastratović, Gordana AU - Sedmak, Aleksandar AU - Lazić, Mirjana M. PY - 2018 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2905 AB - The aim of this paper was to establish and demonstrate significant capacity and performances of extended finite element method (XFEM) to calculate 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 was 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 unique 3D configuration with 22 cracks, propagating at the same time. Short theoretical background information is provided on the XFEM, as well as representation of cracks and SIFs computation. The computations were carried out in Morfeo/Crack for Abaqus software which relies on the implementation of XFEM. The accuracy of these computations was verified through FRANC2D/L software and superposition based approximate method. The conducted analysis showed that XFEM is efficient tool for the simulation of crack propagation even in the case of 3D configurations with MSD, and that the obtained solutions can be used for the prediction of SIFs in analysed MSD configuration with acceptable accuracy. PB - Univ Osijek, Tech Fac, Slavonski Brod T2 - Tehnički vjesnik T1 - Stress Intensity Factors Evaluation at Tips of Multi-Site Cracks in Unstiffened 2024-T3 Aluminium Panel Using XFEM EP - 1622 IS - 6 SP - 1616 VL - 25 DO - 10.17559/TV-20170309133824 ER -
@article{ author = "Aldarwish, Mustafa and Grbović, Aleksandar and Kastratović, Gordana and Sedmak, Aleksandar and Lazić, Mirjana M.", year = "2018", abstract = "The aim of this paper was to establish and demonstrate significant capacity and performances of extended finite element method (XFEM) to calculate 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 was 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 unique 3D configuration with 22 cracks, propagating at the same time. Short theoretical background information is provided on the XFEM, as well as representation of cracks and SIFs computation. The computations were carried out in Morfeo/Crack for Abaqus software which relies on the implementation of XFEM. The accuracy of these computations was verified through FRANC2D/L software and superposition based approximate method. The conducted analysis showed that XFEM is efficient tool for the simulation of crack propagation even in the case of 3D configurations with MSD, and that the obtained solutions can be used for the prediction of SIFs in analysed MSD configuration with acceptable accuracy.", publisher = "Univ Osijek, Tech Fac, Slavonski Brod", journal = "Tehnički vjesnik", title = "Stress Intensity Factors Evaluation at Tips of Multi-Site Cracks in Unstiffened 2024-T3 Aluminium Panel Using XFEM", pages = "1622-1616", number = "6", volume = "25", doi = "10.17559/TV-20170309133824" }
Aldarwish, M., Grbović, A., Kastratović, G., Sedmak, A.,& Lazić, M. M.. (2018). Stress Intensity Factors Evaluation at Tips of Multi-Site Cracks in Unstiffened 2024-T3 Aluminium Panel Using XFEM. in Tehnički vjesnik Univ Osijek, Tech Fac, Slavonski Brod., 25(6), 1616-1622. https://doi.org/10.17559/TV-20170309133824
Aldarwish M, Grbović A, Kastratović G, Sedmak A, Lazić MM. Stress Intensity Factors Evaluation at Tips of Multi-Site Cracks in Unstiffened 2024-T3 Aluminium Panel Using XFEM. in Tehnički vjesnik. 2018;25(6):1616-1622. doi:10.17559/TV-20170309133824 .
Aldarwish, Mustafa, Grbović, Aleksandar, Kastratović, Gordana, Sedmak, Aleksandar, Lazić, Mirjana M., "Stress Intensity Factors Evaluation at Tips of Multi-Site Cracks in Unstiffened 2024-T3 Aluminium Panel Using XFEM" in Tehnički vjesnik, 25, no. 6 (2018):1616-1622, https://doi.org/10.17559/TV-20170309133824 . .