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Iranian Journal of Mechanical Engineering Transactions of the ISME، جلد ۱۸، شماره ۲، صفحات ۳۹-۶۳
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عنوان انگلیسی Analysis of Multiple Yoffe-type Moving Cracks in an Orthotropic Half-Plane under Mixed Mode Loading Condition
چکیده انگلیسی مقاله The present paper deals with the mixed mode fracture analysis of a weakened orthotropic half-plane with multiple cracks propagation. The orthotropic half-plane contains Volterra type glide and climb edge dislocations. It is assumed that the medium is under in-plane loading conditions. The distributed dislocation technique is used to obtain integral equations for the dynamic problem of multiple smooth cracks which are located in an orthotropic half-plane. At first, with the help of Fourier transform the dislocation problem is solved and the stress fields are obtained. The integral equations are of Cauchy type singularity and are solved numerically to obtain the dislocation densities on the surface of several cracks to determine the dynamic stress intensity factors on the crack tips. Several numerical examples are solved to evaluate mode I and mode II dynamic stress intensity factors to show the effects of the orthotropy parameters, crack lengths, and crack speed on the dynamic stress intensity factors.
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نویسندگان مقاله Mojtaba Mahmoudi Monfared |
Department of Mechanical Engineering, Hashtgerd Branch, Islamic Azad University, Alborz, Iran

Reza Sourki |
Faculty of Engineering, University of Zanjan, Zanjan, Iran

Reza Yaghoubi |
Department of Mechanical Engineering, University of Tarbiat Modares, Tehran, Iran

نشانی اینترنتی http://jmee.isme.ir/article_31832_eef2effd9a3ff9c34585a3d2986eaf3f.pdf
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