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Preliminary communication
https://doi.org/10.17559/TV-20171007105350

Fatigue Life Estimation of Damaged Integral Wing Spar Using XFEM

Khalid Ahmed Eldwaib ; Faculty of Mechanical Engineering, University of Belgrade, Kraljice Marije 16, 11120 Belgrade, Serbia
Aleksandar Grbović   ORCID icon orcid.org/0000-0001-9525-4270 ; Faculty of Mechanical Engineering, University of Belgrade, Kraljice Marije 16, 11120 Belgrade, Serbia
Aleksandar Sedmak ; Faculty of Mechanical Engineering, University of Belgrade, Kraljice Marije 16, 11120 Belgrade, Serbia
Gordana Kastratović ; Faculty of Transport and Traffic Engineering, University of Belgrade, Vojvode Stepe 305, 11000 Belgrade
Danilo Petrasinović ; Faculty of Mechanical Engineering, University of Belgrade, Kraljice Marije 16, 11120 Belgrade, Serbia
Simon Sedmak   ORCID icon orcid.org/0000-0002-2674-541X ; Innovation Center of Faculty of Mechanical Engineering, Kraljice Marije 16, 11120 Belgrade, Serbia

Fulltext: english, pdf (3 MB) pages 1837-1842 downloads: 107* cite
APA 6th Edition
Eldwaib, K.A., Grbović, A., Sedmak, A., Kastratović, G., Petrasinović, D. & Sedmak, S. (2018). Fatigue Life Estimation of Damaged Integral Wing Spar Using XFEM. Tehnički vjesnik, 25 (6), 1837-1842. https://doi.org/10.17559/TV-20171007105350
MLA 8th Edition
Eldwaib, Khalid Ahmed, et al. "Fatigue Life Estimation of Damaged Integral Wing Spar Using XFEM." Tehnički vjesnik, vol. 25, no. 6, 2018, pp. 1837-1842. https://doi.org/10.17559/TV-20171007105350. Accessed 17 Jun. 2019.
Chicago 17th Edition
Eldwaib, Khalid Ahmed, Aleksandar Grbović, Aleksandar Sedmak, Gordana Kastratović, Danilo Petrasinović and Simon Sedmak. "Fatigue Life Estimation of Damaged Integral Wing Spar Using XFEM." Tehnički vjesnik 25, no. 6 (2018): 1837-1842. https://doi.org/10.17559/TV-20171007105350
Harvard
Eldwaib, K.A., et al. (2018). 'Fatigue Life Estimation of Damaged Integral Wing Spar Using XFEM', Tehnički vjesnik, 25(6), pp. 1837-1842. doi: https://doi.org/10.17559/TV-20171007105350
Vancouver
Eldwaib KA, Grbović A, Sedmak A, Kastratović G, Petrasinović D, Sedmak S. Fatigue Life Estimation of Damaged Integral Wing Spar Using XFEM. Tehnički vjesnik [Internet]. 2018 [cited 2019 June 17];25(6):1837-1842. doi: https://doi.org/10.17559/TV-20171007105350
IEEE
K.A. Eldwaib, A. Grbović, A. Sedmak, G. Kastratović, D. Petrasinović and S. Sedmak, "Fatigue Life Estimation of Damaged Integral Wing Spar Using XFEM", Tehnički vjesnik, vol.25, no. 6, pp. 1837-1842, 2018. [Online]. doi: https://doi.org/10.17559/TV-20171007105350

Abstracts
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
crack propagation; fatigue life; stress intensity factor; XFEM

Hrčak ID: 212841

URI
https://hrcak.srce.hr/212841

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