Modeling and FEM simulation of a pressurized and rotated functionally graded thick walled cylinder

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ABSTRACT

The present study investigates the effect of material inhomogeneity on thick cylinders under rotation with uniformly applied internal and external pressure. In line with that, a finite element method (FEM)-based simulation is performed for the elastic analysis of thick cylinders made of functionally graded materials (FGMs). The property of FGMs is assumed in an exponential functional form of radial position with a constant Poisson’s ratio. Stress distributions along the radial and circumferential directions are studied, considering the stress in an axial direction to be zero. The results show that the property of FGMs has a significant influence on stress distributions by reducing the overall radial stress and completely changing the distribution of circumferential stress compared to an isotropic cylinder under the same load. Thus, the use of exclusively designed FGMs for manufacturing parts can increase their pressure handling capacity and improve their functionality.

KEYWORDS:

• Thick cylinder
• isotropic material
• functionally graded materials
• analytical modelling
• finite element analysis

Acknowledgments

The authors gratefully acknowledge the support provided by Department of Mechanical Engineering, School of Engineering in Shiv Nadar University, Greater Noida (UP), India for carrying out the FEM simulations work.

Disclosure statement

No potential conflict of interest was reported by the author(s).