Fractal wear behaviour of gear tooth: A review

Enesi Y. Salawu, A. O. Inegbenebor, O. O. Ajayi, Stephen A. Akinlabi, Esther T. Akinlabi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Fractal wear behaviour of gears refers to failure mode of gears as a result of contact mechanics, which occurs while in application. Tooth-to-tooth surface damage usually ensues as a result of variation in excitation energy of the gear. This study therefore investigated the nature of fractal wear encountered by gear tooth with a focus on general fatigue wear, temperature-induced wear and different models for wear predictions. The result of the study showed that tooth surface damage such as fatigue, pitting corrosion and scuffing causes gear failure. Failure due to bending fatigue was observed to contribute to the maximum deflection of the gear tooth during rotation, thus resulting in excessive noise and vibration. Further to this, it was possible to predict the material removal rate of a failed gear using some of the highlighted empirical methods in the study. Based on these models, it will be possible to predict the nature of wear on gear tooth surface and use it during gear design.

Original languageEnglish
Title of host publicationAdvances in Manufacturing Engineering - Selected Articles from ICMMPE 2019
EditorsSeyed Sattar Emamian, Farazila Yusof, Mokhtar Awang
PublisherSpringer Science and Business Media Deutschland GmbH
Number of pages8
ISBN (Print)9789811557521
Publication statusPublished - 2020
Event5th International Conference on Mechanical, Manufacturing and Plant Engineering, ICMMPE 2019 - Kuala Lumpur, Malaysia
Duration: 19 Nov 201921 Nov 2019

Publication series

NameLecture Notes in Mechanical Engineering
ISSN (Print)2195-4356
ISSN (Electronic)2195-4364


Conference5th International Conference on Mechanical, Manufacturing and Plant Engineering, ICMMPE 2019
CityKuala Lumpur


  • Fatigue failure
  • Fractal wear
  • Gear tooth
  • Vibration

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes


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