Abstract
A B S T R A C T Stress concentration is the localization of stresses due to discontinuation or abruption in the geometry. To find the localized stresses, Stress Concentration Factor (SCF) is used. SCF depends on the material and geometry of the specimen. In the present paper an orthotropic plate with a central circular cutout subjected to normal pressure is studied. Based on material properties variation of the non-dimensional parameters E2/E1, G12/E1 and µ12 have been considered within their feasible range. The effect of these nondimensional parameters at different values of polar angle on SCF is studied here. Formulation of mathematical equation for SCF has been done in MATLAB and subsequently results are presented here. The work successfully highlights that for orthotropic material (unlike isotropic materials) SCF depends on material properties. It increases with increase in E2/E1 ratio and decreases with increase in µ12 and G12/E1 ratio.
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