CRACK PROPAGATION AND ARREST IN AN ORTHOTROPIC MATERIAL USING AN ELLIPTIC STOP HOLE
DOI:
https://doi.org/10.60787/jnamp.v67i2.372Keywords:
Crack arrest, Orthotropic material, Stress intensity factor, Displacement field, Elliptical stop holeAbstract
In this paper, we investigated the influence of elliptical stop hole on mode-III deformation behavior of a semi-infinite crack in a homogeneous, elastic orthotropic material subjected to antiplane loading. To make the problem perceptive to analysis within the realm of two-dimensional classical theory of elasticity, we made use of Galilean transformation to convert the governing wave equation to Laplace equation which is time independent. By employing conformal mapping and integral transformation techniques, a solution of the displacement is obtained leading to closed form expression for mode III stress intensity factor. The results obtained shows that the elliptical stop hole is a veritable means of arresting crack propagation.
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