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Prof. Rajesh Kumar
Department of Mechanical Engineering,IIT (BHU)
Area of Interest: 
Engine Tribology, Surface Contact Modelling, Surface Contact Temperature, Surface Characterization, Running-in, Scuffing, Wear Modelling, Tribochemistry, Probabilistic Machine Design, Optimization, DOE, MEMS

Best Paper Award (Academic) in the International Conference on Industrial Tribology, held at IISc, Bangalore, India, 30 Nov – 02 Dec 2006 for the paper entitled “A METHODOLOGY TO ESTIMATE THE WEAR COEFFICIENT OF ENGINE LINER UNDER LUBRICATED CONDITION”.
Book Written: “Modeling of Chemical Wear - Relevance to Practice” ELSEVIER, ISBN No. 978-0-12-804533-6, October 2015. Authors: A. Sethuramiah and Rajesh Kumar
Image of the front of book is given below: 

Description of the book

Modeling of Chemical Wear is a one-stop resource for students, researchers and professionals seeking quick and effective tribological evaluations of environmentally friendly and energy efficient products.

This book considers optimizing additive combinations by proper methodology, bridging the gap between theory and practice. It defines effective approaches to evaluate antiwear chemical additives commonly used in industry, enhancing the mapping ability of their performance to reduce the extent of full scale evaluations.

Key Features of the book

  • Provides full coverage of tribology in four concise chapters, including lubricants and additives and up-and-coming nano-level tribology
  • Offers effective empirical modelling of chemical wear, along with computer programs relevant to industry standards to help you improve your test methods
  • Outlines effective methodology for optimization of additive packages, relevant to the present search for eco-friendly combinations


Research and development groups for oil and lubricant industries, professional tribology societies, students and academics interested in areas of research in tribology of lubricants and design of experiments

Invited Talks in IIT(BHU)/BHU
Two lectures on the topics entitled “Boundary lubrication” and “Boundary lubricated wear” in Workshop on Materials Tribology: Fundamentals and Recent Advances at IIT(BHU) Varanasi, 23-29 March 2017.
Boundary lubricated wear – challenging tribological issues at micro and nano level” in Workshop on Micro-Machining Technology (MMT 2016) in Department of Mechanical Engineering, IIT(BHU) Varanasi, 17-18 June 2016.
An Overview of Surface Finish and Lubricants”, National Workshop Cum Training on Manufacturing Processes, IT-BHU, Varanasi, May 08-13, 2009.
Two lectures on the topics entitledInvestigation into the running-in and steady state wear processes and “Assessment of piston ring and cylinder liner wear”, in  Staff development programme on Fundamentals of Tribology and materials for Tribological Applications” 27th Feb 2006 – 11th march 2006, Mechanical Engineering Department, IT-BHU, Varanasi
Machine health and information technology”, in Thirty Ninth Orientation Course, UGC – Academic Staff College, BHU, Varanasi – 221 005, May 18 – June 14 2005, India.
Invited Talks outside IIT(BHU)
Four lectures on the topics entitled “Statistics and experimental design in perspective – Part I”, “Statistics and experimental design in perspective – Part II”, “Multi-variable optimization”, and “Multi-objective optimization” in Faculty Development Program (FDP) on Optimization Techniques and its Engineering Applications, 15 – 19 March, 2018 at M.I.T.S. Gwalior.
Wear modeling – lubricated contacts Part II” at pre-conference educational course on Basics of Tribology, ICIT 2017, Vedic Village SPA Resorts, Rajarhat, Kolkota, 6th Dec 2017.
Boundary lubricated wear” in National Conference on Advances in Mechanical Engineering, NCAME 2016 in B S Anangpuria Institute of Technology and Management, Faridabad, 12th March 2016.
Two lectures on the topics entitled “An overview of DoE” and “Lubricated wear measurement” in College of Engineering Science & Technology, Mohanlal Ganj, Lucknow on 12th march 2013.
Two lectures on the topics entitled “Wear of non-metallic materials” and “Wear mechanism & modelling” in continuing education programme (CEP) on Recent Trends in Fuels and Lubricants, 21-25th Feb. 2011, organized by FUELS and LUBRICANTS DIVISION, DMSRDE, Kanpur.
Series of Lectures on Design of Experiment (DOE) in Faculty Development Programme at VIT, Vellore, 28th Sept – 9th Oct. 2009.
Friction, wear and lubrication”, First Summer School in Tribology, IIPM, IOCL, Gurgaon, 10-13, June, 2009.
Emerging technology in engine tribology” in the National Conference on Emerging Technology in Mechanical Engineering, KIET Ghaziabad, 27-28 June 2008.
Emerging trends in engine tribology” in the National Seminar on Intelligent and Emerging Technologies in Mechanical and Automotive Engineering, NSITMAE, ITM Gurgaon, 5-6 Jan 2007.