Stress Analysis on Functionally Graded Spur Gear

  • V. Aravind
  • S. Adharsh
  • D. PrakashEmail author
  • K. Babu
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)


Gear is an essential power transmitting element used extensively in all kinds of machines, and among the many gear types, involute spur gear is comparatively simple to design and manufacture. However, predominant failure occurs at the gear root portion as a consequence of high bending stress. Several research works have been done in replacing the gear materials to reduce the stress and to improve the load carrying capacity. In this context, this study employs a functionally graded material (FGM) for the gear tooth and the respective stress analysis is carried out through finite element analysis (FEA) technique. The finite element analysis method is verified for grid independence and validated with benchmark problem. FGM materials, namely Al–SiC, Al–Si3N4, Al–Al2O3, Al–Steel, Steel–Zirconia are included in this investigation, and the variation in the material property is considered in the radial direction as exponential, linear, elliptical and power law equations. As an outcome of the analysis, the variation of stress, strain and displacement is documented for various FGM materials and the best equation for the material property variation is identified under uniform and varying face width value of gear tooth.


Spur gear Functionally graded material Finite element analysis 


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© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.School of Mechanical EngineeringSASTRA Deemed to be UniversityThanjavurIndia
  2. 2.Department of Mechanical EngineeringSSN College of EngineeringChennaiIndia

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