Search for: [Abstract = "The dynamic in\-plane problem of determining the stress and displacement due to three co\-planar Griffith cracks moving steadily at a subsonic speed in a fixed direction in an infinite, isotropic, homogeneous medium under normal stress has been treated. The static problem of determining the stress and displacement around three co\-planar Griffith cracks in an infinite isotropic elastic medium has also been considered. In both the cases, employing Fourier integral transform, the problems have been reduced to solving a set of four integral equations. These integral equations have been solved using finite Hilbert transform technique and Cook's result \[16\] to obtain the exact form of crack opening displacement and stress intensity factors which are presented in the form of graphs."]

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