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Research Article

Direct application of the Complementary Functions Method (CFM) to the static analysis of rotating disks with both parabolic-varying thickness profile and functionally graded (FG) material

Cem Boğa*1, Vebil Yıldırım2

1 Vocational School of Adana, Çukurova University, Adana, Turkey
2 Department of Mechanical Engineering, Çukurova University, Adana, Turkey

Keywords

Abstract

Complementary Functions Method,

Functionally graded material,

Rotating disk,

Variable thickness, 

Elastic analysis

In this study elastic stresses and displacements of a rotating variable-thickness disk made of a radially functionally graded (FG) material are calculated numerically in an accurate manner based on the Complementary Functions Method (CFM). The general parabolic function which determines the variation of the thickness of the disk includes concave, convex and linear disk profiles. It is assumed that the inner surface is to be all-metal and the outer surface is to be all-ceramic. Young’s modulus and density vary between inner and outer surface by obeying the volume-fraction material grading rule. The disk is fixed to a shaft at the inner surface and free expansion exists at the outer surface. For the Ti-6Al-4V - Si3N4 metal-ceramic pair, the effect of the inhomogeneity constants on the stress and displacement is investigated. Results are presented in both tabular and graphical forms. Those presented in tables may form benchmark data for purely numerical calculations.

 © 2016 MIM Research Group. All rights reserved.

DOI: http://dx.doi.org/10.17515/resm2016.36me0129                          Full Text

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07/01/2019 Collaboration for IMSMATEC 2019: Editorial Board of our journal and Organizing Committee of The International Conference on Materials Science, Mechanical and Automotive Engineerings and Technology (IMSMATEC 2019) have agreed to collaborate. Extended versions of the selected papers from the conference will be published in our journal. For more see Events.


25/12/2018 Collaboration for iSTE-CE'2019: Editorial Board of our journal and Organizing Committee of International Conference on Innovation, Sustainability, Technology and Education in Civil Engineering (iSTE-CE'2019) have agreed to collaborate. Extended versions of the selected papers from the conference will be published in our journal. For more see Events.


23/12/2018 2018 Most Cited Paper Award: The paper authored by Jouni Freud and Alp Karakoç entitled as “Shear and torsion correction factors of Timoshenko beam model for generic cross sections" is awarded the 2018 Most Cited Paper Award of Research on Engineering Structures and Materials (RESM). We congratulate the authors and wish them a continued success.


23/12/2018 2018 Best Paper Award: The paper authored by Nelson C. Batista, Rui Melicio and Victor M. F. Mendes entitled as “Darrieus vertical axis wind turbines: methodology to study the self start capabilities considering symmetric and asymmetric air foils” is awarded the 2018 Best Paper Award of Research on Engineering Structures and Materials (RESM). We congratulate the authors and wish them a continued success.


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