Evaluation of Mixed-Mode Center Crack SIF in a Curved Plate Repaired by Stop Holes, Composite Patch, and Hybrid Methods
محورهای موضوعی :
Mechanical Engineering
Sirvan Mohammadi
1
,
sadegh daryaei
2
1 - Department of Mechanical Engineering,
University of Kurdistan, Iran
2 - Department of Mechanical Engineering,
University of Kurdistan, Iran
تاریخ دریافت : 1398/12/20
تاریخ پذیرش : 1401/04/30
تاریخ انتشار : 1401/06/10
کلید واژه:
Fracture mechanics,
Composite patch,
Crack stop holes,
Stress intensity factor,
Crack repair,
چکیده مقاله :
In this research, using the 3D finite element method and considering different materials for a composite patch, the effect of separate and simultaneous use of stop holes and composite patch (one-sided and two-sided) on reduction of SIF in a curved plate including mixed-mode crack is investigated. Glass-epoxy, graphite-epoxy, carbon-epoxy, and boron-epoxy are used for repair patches. For the one-sided patch, the effects of different geometric parameters on the efficiency of the repair are investigated. For all four composite patches, as the thickness of the patches increases, KI and KII decrease, but with increasing the patch length, KI and KII increase. The research results also show that with increasing the width of the glass-epoxy patch, KI and KII almost do not change, but for other patches, as the patch width increases, the SIF increases. The effect of the radius of curvature of the plate on the efficiency of various repair methods is also investigated. In all repair methods studied, SIF decreases with increasing radius of curvature of the curved plate. Different repair methods are compared and the best method with the highest efficiency is introduced. The best repair mode is the hybrid repair method (stop-holes and two-sided boron-epoxy patch), which reduces KI and KII by 84.50 and 86.6%, respectively. Finally, the effect of adhesive thickness used for patch bonding on hybrid repair method efficiency and durability is investigated. for all four materials of patches understudy, KI and KII increase with increasing the thickness of the adhesive, but on the other hand, as the thickness of the adhesive increases, the maximum Von Mises stress in the adhesive decreases.
منابع و مأخذ:
Shahani, A. R., Mohammadi, S., Damage Tolerance and Classic Fatigue Life Prediction of a Helicopter Main Rotor Blade, Meccanica, Vol. 51, 2016, pp. 1869-1886.
Russelle, A., Naganambi, N., Numerical Investigation of Bonded Repair for TDS of Helicopter and Characterization of Kevlar/Epoxy Composite Patch, Procedia Materials Science, Vol. 5, 2014, pp. 204-211.
Li, H. C. H., Wang, J., and Baker, A., Rapid Composite Bonded Repair for Helicopter Tail Drive Shafts, Composites Part B: Engineering, Vol. 43, No. 3, 2012, pp. 1579-1585.
Benachour, M., Benachour, N., Benguediab, M., and Seriari, F. Z., Prediction of Fatigue Crack Growth of Repaired Al-Alloy Structures with Double Sides, Eighth International Conference on Material Sciences (CSM8-ISM5), Physics Procedia, Vol. 55, 2014, pp. 83-89.
Albedah, A., Bouiadjra, B. B., M Es-saheb, W., and Binyahia, F., Elastic Plastic Analysis of Bonded Composite Repair in Cracked Aircraft Structures, Journal of Reinforced Plastics and Composites, Vol. 30 , No. 1, 2011, pp. 66–72.
Kwon, Y. W., Lee, W. Y., Analytical Model for Single-Side Patch Design of Composite Repair, Naval Surface Warfare Center, Carderock Division Structures and Composite Division, MD 20817, March, 2013.
Ramakrishna, Ch., Krishna Balu, J., Rajashekar, S., and Sivateja, N., Finite Element Analysis of the Composite Patch Repairs of the Plates, Int. Journal of Engineering Research and Application, Vol. 7, No. 2, 2017, pp. 10-18.
Es-Saheb, M., Khan, S., and Mohsin, M., Fatigue Behaviour of AA 7075-T6 Plates Repaired at Different Crack Lengths, Chemical Engineering Transactions, Vol. 56, 2017, pp. 1627-1632.
Schubbe, J. J., Bolstad, S. H., and Reyes, S., Fatigue Crack Growth Behavior of Aerospace and Ship-Grade Aluminum Repaired with Composite Patches in A Corrosive Environment, Composite Structures, Vol. 144, 2016, pp. 44-56.
Saeed, Kh., Adhesive Effect on The Performance of The Repair Efficiency of Bonded Aluminum Alloy, Proceedings of 93rd IIER International Conference, Los Angeles, USA, 20th-21st January, 2017.
Khan, S., Es-Saheb, M., Fatigue Crack Growth Analysis of Cracked Aluminum Plates Repaired with Bonded Composite Patch, International Journal of Mechanical and Production Engineering, Vol. 3, No. 8, 2015, pp. 5-8.
Karr, D. G., Baloglu, C., Cao, T. J., Douglas, A., Nielsen, K., Ong, K. T., and Rohrback, B. S. N., Strength and Fatigue Testing of Composite Patches for Ship Plating Fracture Repair, SSC-469, 2015.
Coelho, S. R. M., Reis, P. N. B., Ferreira, J. A. M., and Pereira, A. M., Effects of External Patch Configuration on Repaired Composite Laminates Subjected to Multi-Impacts, Composite Structures, Vol. 168, 2017, pp. 259-265.
Gangadharan, S., Baliga, S. V., Sonawane, N. H., Sathyanarayan, P., and Kamdar, Sh., Impact Analysis of Composite Repair Patches of Different Shapes at Low Velocities for Aircraft Composite Structures, J. Aeronaut Aerospace Eng., Vol. 5, No. 4, pp. 173, 2016.
Zarrinzadeh, H., Kabir, M. Z. and Deylami, A., Crack Growth and Debonding Analysis of An Aluminum Pipe Repaired by Composite Patch Under Fatigue Loading, Thin-Walled Structures, Vol. 112, 2017, pp. 140–148.
Zarrinzadeh, H., Kabir, M. Z., and Deylami, A., Experimental and Numerical Fatigue Crack Growth of An Aluminium Pipe Repaired by Composite Patch, Engineering Structures, Vol. 133, 2017, pp. 24–32.
Oudad, W., Bachir Bouiadjra, B., Belhouari, M., Ziadi, A., Stress Intensity Factor for Repaired Crack with Bonded Composite Patch Under Mechanical Loading in Aircraft Structures, 12ème congrès de Mécanique 21-24, Casablanca (Maroc), Avril, 2015.
Mohammadi, S., Yousefi, M., and Khazaei, M., A Review on Composite Patch Repairs and The Most Important Parameters Affecting Its Efficiency and Durability, J. Reinf Plast Compos, 2020, https://doi.org/10.1177/0731684420941602.
Mohammadi, S., Parametric Investigation of One-Sided Composite Patch Efficiency for Repairing Crack in Mixed Mode Considering Different Thicknesses of The Main Plate, Journal of Composite Materials, 2020.
Li, K., Li, Ch., Tie, Y., and Yu, Y., Influence of Patch Parameters on Damage and Residual Strength of Adhesively Bonded Composite Repair Under Fatigue Loading, Materials Physics and Mechanics, Vol. 24, 2015, pp. 391-402.
Walde, Sh., Lilhare, S., Finite Element Analysis of Composite Patch Repaired Cracked Metal Plates and Effect of Patch Thickness on SIF, International Journal of Engineering and Technical Research (IJETR), Vol. 4, No. 3, 2016, pp. 43-46.
Albedah, A., Mohammed, S. M., Bouiadjra, B. B., and et al., Effect of the Patch Length on The Effectiveness of One-Sided Bonded Composite Repair for Aluminum Panels, Int J Adhes Adhes, Vol. 81, 2018, pp. 83–89.