Mechanical Stresses in a Linear Plastic FGM Hollow and Solid Rotational Disk
Author(s):
Abstract:
In this paper, an analytical solution for computing the plastic & linear plastic stresses and critical angular velocity in a FGM hollow & solid rotating disk is developed. It has been assumed that the modulus of elasticity and yield strength were varying through thickness of the FGM material according to a power law relationship. The Poisson''s ratio were considered constant throughout the thickness. In the analysis presented here the effect of non-homogeneity in FGM rotating disk was implemented by choosing a dimensionless parameter, named m, which could be assigned an arbitrary value affecting the stresses in the rotating disk. Distribution of stresses in radial and circumferential directions for FGM rotating disk under the influence of angular velocity were obtained. Graphs of variations of stress, critical angular velocity versus radius of the rotating disk were plotted. The direct method is used to solve the Navier equations.
Keywords:
Hollow , solid disk , Non , homogenous , Axisymmetric , FGM , Elastic , plastic analysis
Language:
English
Published:
Journal of Solid Mechanics, Volume:5 Issue: 4, Autumn 2013
Pages:
402 to 417
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