An Investigation of Stress and Deformation States of Rotating Thick Truncated Conical Shells of Functionally Graded Material

Journal of Solid Mechanics

مقاله 14، دوره 9، شماره 4، اسفند 2017، صفحه 865-877   

نوع مقاله: Research Paper

نویسندگان

A Thawait^{* 1}؛ L Sondhi²؛ Sh Bhowmick³؛ Sh Sanyal³

¹Department of Mechanical Engineering, Institute of Technology, Guru Ghasidas Vishwavidyalaya, Bilaspur, 495009, India

²Department of Mechanical Engineering, Shri Shankaracharya Technical Campus, SSGI, Bhilai, 490020, India

³Department of Mechanical Engineering, National Institute of Technology (NIT), Raipur, 492010, India

چکیده

The present study aims at investigating stress and deformation behavior of rotating thick truncated conical shells subjected to variable internal pressure. Material prpperties of the shells are graded along the axial direction by Mori-tanaka scheme, which is achieved by elemental gradation of the properties.Governing equations are derived using principle of stsionary total potential (PSTP) and shells are subjected to clamped- clamped boundary conditions. Aluminum-zirconia, metal-ceramic and ceramic-metal FGM is considered and effects of grading index of material properties and pressure distribution are analyzed. Distribution of Radial displacement and circumferential stress in both radial and axial direction is presented. Further a comparison of behaviors of different FGM shells and homogeneous shells are made which shows, a significant reduction in stresses and deformations of FGM shells as compared to homogeneous shell. FGM shell having value of grading parameter n = 2 is most suitable for the purpose of rotating conical shells having variable pressure distribution as compared to homogeneous shell and shell having other values of grading parameter n.  

کلیدواژه‌ها

Rotating thick truncated conical shell؛ Functionally graded material؛ Linear elastic analysis

مراجع

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