Qualification: 
M.Tech
d_unnikrishnan@cb.amrita.edu
Phone: 
+91-9445226422

Unnikrishnan D, has a B.Tech Degree in Mechanical Engineeirng (University of Calicut) and M.Tech in Engineering Design (Mechanical Engineering) (Amrita Vishwa Vidyapeetham Deemed to be university). After Masters he was placed in several MNCs, but choose teaching as a career because of his passion to help people learn and understand new concepts. His academic areas of interest are Solid mechanics, Fluid Mechanics, Computational Mechanics and Polymer Tribology. He is currently pursuing his Ph.D. at amrita Vishwa Vidyapeetham, Coimbatore (Par-time) in wind turbine performance predictions and improvement. He is passionate about Photography, Videography and travelling. He is born to Mr. & Mrs. SathiDivakaran from Palakkad.

Education

  • 2007 - 09 : M.Tech. Engineering Design
    Institution : Amrita School of Engineering
    University : Amrita Vishwa Vidyapeetham
  • 2003 - 07 : B.Tech. Mechanical Engineering
    Institution : K.M.C.T. College of Engineering
    University : Calicut University

Experience

  • November 01, 2010 - Present :

Assistant Professor Sr.Gr.
Amrita Vishwa Vidyapeetham

  • January 07, 2010 - October 22, 2010 :

Assistant Professor
S.C.M.S. School of Engineering

  • July 01, 2009 - January 05, 2010 :

Lecturer
AdiShankara Institute of Engineering and Technology

Student Projects

Year Title of the Project/Thesis Number of Students/Group Industry Project / In-house Outcome
2014-15 Tribological Behaviour of UHMWPE – Talc composite 4 In House Finished
2012-13 Optimization of Spring seat Geometry by Numerical Study for a pneumatic actuator 4 Instrumentation Limited, Palakkad Finished
2011-12 Numerical Study of Artificial Joints coated with UHMWPE 4 In House Finished
Year Title of the Project/Thesis Number of Students/Group Industry Project / In-house Outcome
2018 – 19 Optimzation of Airfoil shapes for improved performance in VAWT 1 In House On going
Experimental analysis of a VAWT for improved performance 1
2017 – 18 Tribological behaviour of UHMWPE – Graphite nano particle composite In House Finished
Tribological behaviour of UHMWPE – Carbon nano particle composite 1
2012-13 Numerical Study of Stretch forming Process of rocket Structures 1 I.S.R.O Finished

Funded Research Projects

Workshops Attended

  • Participated in Two Weeks workshop on Engineering Mechanics (IIT Bombay)
    Duration : November 26, 2013 to December 6, 2013
  • Participated in Fourth Summer School In Tribology
    Organised by : Indian Oil Institute of Petroleum Management
    Duration : June 24, 2012 to June 29, 2012
  • Participated in Mathematical Modelling and applications to Industrial Problems (N.I.T. Calicut)
    Duration : March 28, 2011 to March 31, 2011

Publications

Publication Type: Conference Proceedings

Year of Publication Title

2018

P. Deepak, V. M. Latheesh, A. Sumesh, Unnikrishnan D., and A. Santhakumari, “A Finite Element Analysis of Dissimilar Materials Diffusion Bonded Joints”, ICMMM2017. Materials Today: Proceedings, VIT, Vellore campus, India, pp. 12484-12489, 2018.

2018

A. R. Krishna, A. Arun, Unnikrishnan D., and K.V. Shankar, “An Investigation on the Mechanical and Tribological Properties of Alloy A356 on the Addition of WC”, ICMMM2017, vol. 5. Materials Today: Proceedings, VIT, Vellore campus, India, pp. 12349-12355, 2018.[Abstract]


Aluminium alloys have broad applications in aerospace and automotive industries due to its high strength to weight ratio. But it is found that aluminium and its alloys are having poor tribological properties, hence its applications are getting limited. Studies reveal that the additions of reinforcements will enhance the mechanical and tribological properties. In this work an investigation was carried out to understand the mechanical and tribological properties of Aluminium matrix composites. Varying weight percentage (1-5%) of tungsten carbide particulates were added to aluminium A356 alloy using stir casting technique. Different compositions of these aluminium matrix composites were cast. The tungsten carbide particulate distribution in the cast was observed using energy dispersive spectroscopy. Various Experiments were carried out to study the Mechanical and Tribological properties of these Aluminium matrix composites. The results of this investigation reveal that the mechanical properties like hardness, tensile strength and tribological properties like wear resistance have improved up to 4 weight percentage of tungsten carbide. It was also found that varying weight percentage of tungsten carbide has no influence on the coefficient of friction. © 2017 Elsevier Ltd. All rights reserved.

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2017

A. A., Rameshkumar, K., Unnikrishnan D., and A. Sumesh, “Tool Condition Monitoring of Cylindrical Grinding Process Using Acoustic Emission Sensor”, ICMMM2017. Materials Today: Proceedings, VIT, Vellore campus, India, pp. 11888-11899, 2017.

Publication Type: Journal Article

Year of Publication Title

2018

P. Deepak, V. M. Latheesh, A. Sumesh, Unnikrishnan D., and A. Santhakumari, “A Finite Element Analysis of Dissimilar Materials Diffusion Bonded Joints”, Materials Today: Proceedings, vol. 5, pp. 12484-12489, 2018.[Abstract]


Diffusion bonding is one of the solid state joining process, in which two clean metallic surfaces intended for joining were brought into contact at elevated temperatures under optimum pressure. In this work, an attempt is made to study the analysis and simulation of the two dissimilar materials Titanium alloy (Ti-6Al-4V) and Stainless Steel (SS304) which is having a wide application in the area of aerospace. Structural analysis was carried out to determine the equivalent stress, elongation and total deformation of the welded joint. Explicit Dynamics analysis using Ansys was used to predict the strength of Ti-6Al-4V/SS304 diffusion bonded joint. The result indicates that Equivalent stress is attained at 1.393GPa and total deformation is 0.00275m obtained at a time 0.000041seconds. The analysis shows that the fracture occurs in the region of titanium alloy and not in the region of HAZ.

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Professional Body Memberships

  • ISAMPE
  • Tribology Society of India
Faculty Research Interest: