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Dynamic stress concentration in a hybrid composite laminate subjected to a sudden internal break | ||
| Journal of Computational & Applied Research in Mechanical Engineering (JCARME) | ||
| مقاله 12، دوره 9، شماره 1 - شماره پیاپی 17، آذر 2019، صفحه 157-171 اصل مقاله (1.39 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22061/jcarme.2018.2604.1259 | ||
| نویسندگان | ||
| Erfan Mirshekari* ؛ Arash Reza | ||
| Department of Mechanical Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran | ||
| تاریخ دریافت: 05 خرداد 1396، تاریخ بازنگری: 25 مرداد 1397، تاریخ پذیرش: 04 شهریور 1397 | ||
| چکیده | ||
| In this work, transient dynamic stress concentration in a hybrid composite laminate subjected to a sudden internal crack is examined. It is assumed that all fibers lie in one direction and the applied load acts along direction of fibers. Two types arrangements are considered for the fiber; square and hexagonal arrangement. Using shear lag model, equilibrium equations are deduced and upon proper application of initial and boundary conditions, the complete field equations are obtained using finite difference method. The results of dynamic effect of fiber breakage on stress concentration are well examined in presence of a second type fiber. These results are compared to those of their static values in both models. The effect of surface cracks on stress concentration, as a result of fiber breakage, is also examined. The values of dynamic stress concentrations is deduced and compared to those of a lamina. Also, the peak stress concentration during transition time for fibers to reach static equilibrium is calculated and compared with those of static values. | ||
| کلیدواژه‌ها | ||
| Laminate؛ Crack؛ Transient Response؛ Dynamic Stress Concentration؛ Hybrid | ||
| مراجع | ||
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[1] M. Rezayat, M. Bahremand, M. Parsa, H. Mirzadeh, and J. Cabrera, “Modification of As-cast Al-Mg/B4C composite by addition of Zr”, Journal of Alloys and Compounds, Vol. 685, pp. 70-77, (2016).
[2] M. Rezayat, M. Gharechomaghlu, H. Mirzadeh, and M. H. Parsa, “A comprehensive approach for quantitative characterization and modeling of composite microstructures”, Applied Mathematical Modelling, Vol. 40, pp. 8826-8831, (2016).
[3] E. Yousefi, A. Sheidaei, M. Mahdavi, M. Baniassadi, M. Baghani, and G. Faraji, “Effect of nanofiller geometry on the energy absorption capability of coiled carbon nanotube composite material”, Composites Science and Technology, Vol. 153, pp. 222-231, (2017).
[4] B. Sadeghi, M. Shamanian, F. Ashrafizadeh, P. Cavaliere, and A. Rizzo, “Friction stir processing of spark plasma sintered aluminum matrix composites with bimodal micro-and nano-sized reinforcing Al 2 O 3 particles”, Journal of Manufacturing Processes, Vol. 32, pp. 412-424, (2018).
[5] J. M. Hedgepeth, “Concentration in a filamentary structure”, NASA TND-882, (1961).
[6] J. M. Hedgepeth, and P. Van Dyke, “Local Stress Concentrations in Imperfect Filamentary Composite Materials”, Journal of Composite Materials, Vol. 1, pp. 294-309, (1967).
[7] C. M. Landis, M. A. McGlockton, and R. M. McMeeking, “An Improved Shear Lag Model for Broken Fibers in Composite Materials”, Journal of Composite Materials, Vol. 33, pp. 667-680, (1999).
[8] J. N. Rossettos and M. Shishehsaz, “Stress concentration in fiber composite sheets including matrix extension”, Journal of Applied Mechanics, Vol. 54, pp. 334-342, (1987).
[9] J. E. David Reedy, “Fiber Stresses in a Cracked Monolayer: Comparison of Shear-Lag and 3-D Finite Element Predictions”, Journal of Composite Materials, Vol. 18, pp. 595-607, (1984).
[10] Z. Xia, T. Okabe, and W. A. Curtin, “Shear-lag versus finite element models for stress transfer in fiber-reinforced composites”, Composites Science and Technology, Vol. 62, pp. 1141-1149, (2002).
[11] H. Fukuda, “An advanced theory of the strength of hybrid composites”, Journal of Materials Science, Vol. 19, pp. 974-982, (1984).
[12] H. Fukuda, “Stress concentration factors in unidirectional composites with random fiber spacing”, Composites Science and Technology, Vol. 22, pp. 153-163, (1985).
[13] H. Fukuda, and T. W. Chou, “Stress Concentrations in a Hybrid Composite Sheet”, Journal of Applied Mechanics, Vol. 50, pp. 845-848, (1983).
[14] D. Larom, C. T. Herakovich, and J. Aboudi, “Dynamic response of pulse loaded laminated composite cylinders”, International Journal of Impact Engineering, Vol. 11, pp. 233-248, (1991).
[15] E. Mirshekari, Transient Response and Stress Distributions in a Laminate Subjected to an internal Crack, M.Sc. Thesis, Faculty of engineering, Shahid Chamran University, Iran, (2009).
[16] A. Reza, H. M. Sedighi, and M. Soleimani, “Dynamic load concentration caused by a break in a Lamina with viscoelastic matrix”, Steel and Composite Structures, Vol. 18, pp. 1465-1478, (2015).
[17] S. Souad, B. Serier, F. Bouafia, B. A. B. Bouidjra, and S. S. Hayat, “Analysis of the stresses intensity factor in alumina–Pyrex composites”, Computational Materials Science, Vol. 72, pp. 68-80, (2013).
[18] J. Aboudi, “Transient response of piezoelectric composites caused by the sudden formation of localized defects”, International Journal of Solids and Structures, Vol. 50, pp. 2641-2658, (2013).
[19] A. Reza and M. Shishesaz, “Transient load concentration factor due to a sudden break of fibers in the viscoelastic PMC under tensile loading”, International Journal of Solids and Structures, Vol. 88–89, pp. 1-10, (2016).
[20] D. M. Causon and C. G. Mingham, Introductory Finite Difference Methods for PDEs: Ventus Publishing ApS, (2010). | ||
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