On the reduction of stress concentration factor in an infinite panel using different radial functionally graded materials Online publication date: Tue, 03-Jul-2018
by Vikas Goyat; Suresh Verma; Ramesh Kumar Garg
International Journal of Materials and Product Technology (IJMPT), Vol. 57, No. 1/2/3, 2018
Abstract: This work deals with a parametric study of the stress concentration factor in different functionally graded material panels having a central circular hole subjected to a uniaxial tensile, biaxial tensile and shear load. The extended finite element method along with isoparametric graded finite element material properties modelling scheme is used to evaluate the stress concentration factor. Three candidate material gradation models are tested in this parametric study and various metal ceramic functionally graded materials are also tested for stress concentration. The stress concentration factor evaluated numerically for a wide range of Young's modulus ratio and power law index are presented. It has been concluded that the low stress concentration factor can be achieved by choosing the proper material gradation model and their power law index for a fixed value of Young's modulus ratio.
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