
Mahmoudi Monfared, M., Sourki, R., Yaghoubi, R. (2017). Analysis of Multiple Yoffetype Moving Cracks in an Orthotropic HalfPlane under Mixed Mode Loading Condition. Iranian Journal of Mechanical Engineering Transactions of the ISME, 18(2), 3962.Mojtaba Mahmoudi Monfared; Reza Sourki; Reza Yaghoubi. "Analysis of Multiple Yoffetype Moving Cracks in an Orthotropic HalfPlane under Mixed Mode Loading Condition". Iranian Journal of Mechanical Engineering Transactions of the ISME, 18, 2, 2017, 3962.Mahmoudi Monfared, M., Sourki, R., Yaghoubi, R. (2017). 'Analysis of Multiple Yoffetype Moving Cracks in an Orthotropic HalfPlane under Mixed Mode Loading Condition', Iranian Journal of Mechanical Engineering Transactions of the ISME, 18(2), pp. 3962.Mahmoudi Monfared, M., Sourki, R., Yaghoubi, R. Analysis of Multiple Yoffetype Moving Cracks in an Orthotropic HalfPlane under Mixed Mode Loading Condition. Iranian Journal of Mechanical Engineering Transactions of the ISME, 2017; 18(2): 3962.
Analysis of Multiple Yoffetype Moving Cracks in an Orthotropic HalfPlane under Mixed Mode Loading Condition
Article 3, Volume 18, Issue 2  Serial Number 29, Summer and Autumn 2017, Page 3962
PDF (1019 K)
Document Type: Research Paper
Authors
Mojtaba Mahmoudi Monfared ^{} ^{} ^{1}; Reza Sourki^{2}; Reza Yaghoubi^{3}
^{1}Department of Mechanical Engineering, Hashtgerd Branch, Islamic
Azad University, Alborz, Iran
^{2}Faculty of Engineering, University of Zanjan, Zanjan, Iran
^{3}Department of Mechanical Engineering, University of Tarbiat Modares, Tehran, Iran
Abstract
The present paper deals with the mixed mode fracture analysis of a weakened orthotropic halfplane with multiple cracks propagation. The orthotropic halfplane contains Volterra type glide and climb edge dislocations. It is assumed that the medium is under inplane 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 halfplane. 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.
Keywords
Mixed mode; Dynamic stress intensity factors; Multiple cracks; Distributed dislocation technique
Main Subjects
Fracture mechanics
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