Fatigue Life Estimation of Damaged Integral Wing Spar Using XFEM
2018
Authors
Eldwaib, KhalidGrbović, Aleksandar
Sedmak, Aleksandar
Kastratović, Gordana
Petrašinović, Danilo
Sedmak, Simon
Article (Published version)
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This paper presents the application of the extended finite element method (XFEM) in crack propagation simulation on the integral wing spar that should replace existing differential spar of the light aircraft UTVA 75. Numerical model of integral spar was developed in software Abaqus. Stress intensity factors (SIFs) were calculated using add-in Morfeo/Crack for Abaqus and obtained number of cycles that would propagate crack to certain length was compared to the experimentally obtained number of cycles for differential spar. Numerical analysis showed that integral spar with the same dimensions as differential spar has significant increase in fatigue life. Analysis that was carried out showed that XFEM could be efficient and cost beneficial tool for simulation of crack propagation in the 3D structures (such as wing spar) and that it should be used in the future for fatigue analysis of newly designed structures in all phases of development and production.
Keywords:
XFEM / stress intensity factor / fatigue life / crack propagationSource:
Tehnički vjesnik, 2018, 25, 6, 1837-1842Publisher:
- Univ Osijek, Tech Fac, Slavonski Brod
DOI: 10.17559/TV-20171007105350
ISSN: 1330-3651
WoS: 000453261600035
Scopus: 2-s2.0-85059368027
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Inovacioni centarTY - JOUR AU - Eldwaib, Khalid AU - Grbović, Aleksandar AU - Sedmak, Aleksandar AU - Kastratović, Gordana AU - Petrašinović, Danilo AU - Sedmak, Simon PY - 2018 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2897 AB - This paper presents the application of the extended finite element method (XFEM) in crack propagation simulation on the integral wing spar that should replace existing differential spar of the light aircraft UTVA 75. Numerical model of integral spar was developed in software Abaqus. Stress intensity factors (SIFs) were calculated using add-in Morfeo/Crack for Abaqus and obtained number of cycles that would propagate crack to certain length was compared to the experimentally obtained number of cycles for differential spar. Numerical analysis showed that integral spar with the same dimensions as differential spar has significant increase in fatigue life. Analysis that was carried out showed that XFEM could be efficient and cost beneficial tool for simulation of crack propagation in the 3D structures (such as wing spar) and that it should be used in the future for fatigue analysis of newly designed structures in all phases of development and production. PB - Univ Osijek, Tech Fac, Slavonski Brod T2 - Tehnički vjesnik T1 - Fatigue Life Estimation of Damaged Integral Wing Spar Using XFEM EP - 1842 IS - 6 SP - 1837 VL - 25 DO - 10.17559/TV-20171007105350 ER -
@article{ author = "Eldwaib, Khalid and Grbović, Aleksandar and Sedmak, Aleksandar and Kastratović, Gordana and Petrašinović, Danilo and Sedmak, Simon", year = "2018", abstract = "This paper presents the application of the extended finite element method (XFEM) in crack propagation simulation on the integral wing spar that should replace existing differential spar of the light aircraft UTVA 75. Numerical model of integral spar was developed in software Abaqus. Stress intensity factors (SIFs) were calculated using add-in Morfeo/Crack for Abaqus and obtained number of cycles that would propagate crack to certain length was compared to the experimentally obtained number of cycles for differential spar. Numerical analysis showed that integral spar with the same dimensions as differential spar has significant increase in fatigue life. Analysis that was carried out showed that XFEM could be efficient and cost beneficial tool for simulation of crack propagation in the 3D structures (such as wing spar) and that it should be used in the future for fatigue analysis of newly designed structures in all phases of development and production.", publisher = "Univ Osijek, Tech Fac, Slavonski Brod", journal = "Tehnički vjesnik", title = "Fatigue Life Estimation of Damaged Integral Wing Spar Using XFEM", pages = "1842-1837", number = "6", volume = "25", doi = "10.17559/TV-20171007105350" }
Eldwaib, K., Grbović, A., Sedmak, A., Kastratović, G., Petrašinović, D.,& Sedmak, S.. (2018). Fatigue Life Estimation of Damaged Integral Wing Spar Using XFEM. in Tehnički vjesnik Univ Osijek, Tech Fac, Slavonski Brod., 25(6), 1837-1842. https://doi.org/10.17559/TV-20171007105350
Eldwaib K, Grbović A, Sedmak A, Kastratović G, Petrašinović D, Sedmak S. Fatigue Life Estimation of Damaged Integral Wing Spar Using XFEM. in Tehnički vjesnik. 2018;25(6):1837-1842. doi:10.17559/TV-20171007105350 .
Eldwaib, Khalid, Grbović, Aleksandar, Sedmak, Aleksandar, Kastratović, Gordana, Petrašinović, Danilo, Sedmak, Simon, "Fatigue Life Estimation of Damaged Integral Wing Spar Using XFEM" in Tehnički vjesnik, 25, no. 6 (2018):1837-1842, https://doi.org/10.17559/TV-20171007105350 . .