Determination of the Effective Parameters for Perforated Functionally Graded Plates with Polygonal Cutout by Analytical Solution

Subject Areas : Mechanical Engineering

M Jafari ¹ , M. H Bayati Chaleshtari ² , H Abdolalian ³

1 - Faculty of Mechanical and Mechatronics Engineering, Shahrood University of Technology, Shahrood, Iran
2 - School of Mechanical Engineering, Iran University of Science and Technology, Narmak, Tehran, Iran
3 - Faculty of Mechanical and Mechatronics Engineering, Shahrood University of Technology, Shahrood, Iran

Received: 2019-11-01 Accepted : 2020-01-04 Published : 2020-03-01

Keywords: Polygonal cutout, Functionally graded plate, Stress resultants and moments, Analytical solution, Complex-variable method,

Abstract :

This paper investigates the moments and stress resultants from infinite FG laminates with different polygonal cutouts subject to uniaxial tensile load. The analytical solution used for the calculation of stress resultants and moments is the basis of the complex-variable method and conformal mapping function. The impact of various factors, namely cutout orientation angle, cutout aspect ratio as well as the cutout corner curve on stress distribution and moment resultants is studied. The effect of the aforementioned parameters around triangular, square, pentagonal and hexagonal cutout is analyzed. The mechanical characteristics of the graded plates are hypothesized to vary throughout the thickness exponentially. Finite element numerical solution is employed to examine the results of the present analytical solution. This comparison showed a favorable agreement level among the acquired analytical and numerical outcomes.

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