PSI - Issue 46

Saurabh Gairola et al. / Procedia Structural Integrity 46 (2023) 182–188 Saurabh Gairola et al./ Structural Integrity Procedia 00 (2021) 000–000

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 Fatigue crack growth rate was simulated using Forman law in AFGROW. The number of cycles for crack propagation predicted in different conditions, i.e., center cracked and single edge cracked specimen is in good agreement with the experimental values. Absolute error in propagation life of center cracked and edge crack was 17 and 3%, respectively.  The fatigue life was predicted using a combined approach of FEM and stress life analysis. Fatigue initiation was calculated using the stress life equation in ABAQUS and Fe-Safe. Fatigue propagation was predicted using AFGROW. Total life predicted using center cracked specimen shows better results compared to the edge cracked specimen. The absolute average error in fatigue life of center cracked and edged cracked specimens was observed to be 39 and 46%, respectively References Akramin, M. R. M., Marizi, M. S., Husnain, M. N. M., & Shamil Shaari, M. (2020). Analysis of Surface Crack using Various Crack Growth Models. Journal of Physics: Conference Series , 1529 (4). https://doi.org/10.1088/1742-6596/1529/4/042074 Alexopoulos, N. D., & Papanikos, P. (2008). Experimental and theoretical studies of corrosion-induced mechanical properties degradation of aircraft 2024 aluminum alloy. Materials Science and Engineering A , 498 (1–2), 248–257. https://doi.org/10.1016/j.msea.2008.08.024 Chang, K.-H. (2015). e-Design . Elsevier. https://doi.org/10.1016/C2009-0-63076-2 Hudson, C. M. (1969). Effect of Stress Ratio on Fatigue-Crack Growth in 7075-T6 and 2024-T3 Aluminum-alloy specimens (Issue August). Kebir, T., Nehari, T., Mohamed, B., & Harchouche, Z. E. A. (2019). Simulation of fatigue damage under variable loading. Journée de Structures et Développement Durable , April , 1–3. Mazlan, S., Yidris, N., Zahari, R., Gires, E., Majid, D. L. A., & Ahmad, K. A. (2020). Prediction of fatigue life of aluminum 2024-T3 at low temperature by finite element analysis. Journal of Mechanical Engineering and Sciences , 14 (3), 7170–7180. https://doi.org/10.15282/jmes.14.3.2020.18.0563 Mohanty, J. R., Mahanta, T. K., Mohanty, A., & Thatoi, D. N. (2015). Prediction of constant amplitude fatigue crack growth life of 2024 T3 Al alloy with R-ratio effect by GP. Applied Soft Computing Journal , 26 , 428–434. https://doi.org/10.1016/j.asoc.2014.10.024 Qian, Y., & Zhao, J. (2019). Fracture toughness calculation method amendment of the dissimilar steel welded joint based on 3D XFEM. Metals , 9 (5), 1–16. https://doi.org/10.3390/met9050509 Saeed, K. (2015). Influence of amplitude loading and stress ratio on fatigue life of Aluminum 2024 T3 alloy. 8 , 78–81. Zou, B., Yang, X., & Chen, J. (2011). Fatigue crack growth rates in friction stir welding joints of 7075-T6 Al alloy and fatigue life prediction based on AFGROW. Advanced Materials Research , 337 , 507–510. https://doi.org/10.4028/www.scientific.net/AMR.337.507