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Journal of Computational and Applied Research in Mechanical Engineering - JCARME، جلد ۹، شماره ۱، صفحات ۱۵۷-۱۷۱
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عنوان انگلیسی Dynamic stress concentration in a hybrid composite laminate subjected to a sudden internal break
چکیده انگلیسی مقاله 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.
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نویسندگان مقاله Erfan Mirshekari |
Department of Mechanical Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran

Arash Reza |
Department of Mechanical Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran

نشانی اینترنتی http://jcarme.sru.ac.ir/article_821_0453950a458eeb5ff4c70a7b9e58e3f7.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/484/article-484-1716792.pdf
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زبان مقاله منتشر شده en
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