Dr. RAJ KUMAR SAHU

Department Mechanical Engineering
Designation Assistant Professor
Educational Qualification B.Tech, M.Tech, (PhD)
E-Mail raj.mit.mech@gmail.com, rksahu.mech@nitrr.ac.in
Contact Number 07694979520
Areas of Interest

Google Scholar :-https://scholar.google.co.in/citations?hl=en&user=qYCx4yMAAAAJ&view_op=list_works&sortby=pubdate

Modeling & simulation of Al Alloys Composites

Dielectric elastomer actuators                  

Functionally Graded Materials

Application of smart materials in actuator design

Publications

Sponsored research projects :- 02

 1. Title of the project:- Development, characterization of functionally graded material with self lubrication property for cutting tool applications

 Co- Supervisor:- Dr. G. Srinivasu

 Sponsored by:- Chhattisgarh Council of Science and Technology, Raipur

 Year:- 2015-2018

 Project Value:- 3.5 Lakhs (Approx)

 2.Title of Project:- Characterization of Strain Induced Behaviors of Electroactive Polymers for Sensor and Actuator Applications.

 Co- Supervisor:-  N.A

 Sponsored by:- Science and Engineering Research Board, Department of Science and Technology, New Delhi

 Year:- 2016-2019

 Project Value:- 35 Lakhs (Approx)

Patents

C. Mahender, D. Siddhartha, R. K. Sahu,  K. Patra, S. Bhaumik, A. K. Pandey and D. K. Setua, ‘A biaxial stretching device for simultaneously stretching of an elastomer sample’, Patent application no. 985/KOL/2013 dt 26.08.2013.

 

 

Book Chapters :- 02

Number of Chapters Published: 02

Title of the Chapter & Book

Name of Author(s)

Name of the Publisher

ISBN No.

Year of Publication

Reprint No./ Edition No.

Estimation of Specific Energy Density of dielectric elastomer materials:  using Mooney Rivlin Model & Ogden Model

Vijay Narayan, Satish Solanki Raj Kumar Sahu, Karali Patra and Shovan Bhaumik

Macmillan Publishers India Ltd.

978-935-059-048-5

2012

Vol 43 Issue 41

Fabrication of Metal matrix composites by Stir casting process with stirring parameters optimization

Raj Kumar Sahu and Mohit Kumar Sahu

Intech Publishers,Croatia

978-1-78923-033-8

2018

Chapter 7

Book name : Advanced Casting Technologies

 

Publications in International Journals (Published/Accepted: 13)

  1. Rityuj Singh Parihar, Srinivasu Gangi Setti, Raj Kumar Sahu, “Preliminary investigation on development of Functionally Graded Cemented Tungsten Carbide with Solid lubricant via Ball Milling and Spark Plasma Sintering”, Journal of Composite Materials, (Impact Factor:- 1.257), (In Press).. 
  2. Mohit Kumar Sahu and Raj Kumar Sahu, “Optimization of Stirring Parameters Using CFD Simulations for HAMCs Synthesis by Stir Casting Process”, Transaction of Indian Institute of Metals, 10 (60) pp 1-8, 2017. DOI 10.1007/s12666-017-1119-5 (Impact Factor:- 0.502), (In Press).
  3. Rityuj Singh Parihar, Srinivasu Gangi Setti, Raj Kumar Sahu, “Recent advances in the manufacturing processes of functionally graded materials: a review”, Science and Engineering of Composite Materials, ISSN:- 2191-0359, DOI: 10.1515/secm-2015-0395. (Impact Factor:- 0.487)
  4. Rityuj Singh Parihar, Srinivasu Gangi Setti, Raj Kumar Sahu, ‘Functionally graded cemented tungsten carbide “future material for cutting tool application” International Journal of Applied Engineering Research, Vol. 10 (92), pp 221-227, 2015.
  5. Raj Kumar Sahu, Abhishek Saini, Dilshad Ahmad, Karali Patra and Jerzy Szpunar, “Estimation and Validation of Maxwell Stress of Planar Dielectric Elastomer Actuators”, Journal of Mechanical Science and Technology, 30 (1) pp 429-436, 2016. (Impact Factor:- 0.761)
  6. Raj Kumar Sahu and Karali Patra, Rate dependent mechanical behavior of VHB4910 elastomer, Mechanics of Advanced Materials and Structure, Vol. 23 (2), pp. 170-179, 2016. DOI: 10.1080/15376494.2014.949923(Impact Factor:- 1.926)
  7. Raj Kumar Sahu, K. Patra, S. Bhaumik, A. K. Pandey and D. K. Setua, “Stress-strain behaviour of dielectric elastomer for actuators” Applied Mechanics and Materials Vol. 789-790 pp 835-839, 2015.
  8. Raj Kumar Sahu, Karali Patra and Jerzy A. Szpuner, "Experimental study and numerical modeling of creep and stress relaxation of dielectric elastomers"Strain, Vol 51, 43-54, 2015. (Impact Factor:- 1.522)
  9. Karali Patra, Raj Kumar Sahu, , A visco-hyperelastic approach to modelling rate-dependent large deformation of a dielectric acrylic elastomers, International Journal of Mechanics and Materials in Design, vol. 10, 2014.(Impact Factor:- 1.926)
  10. Raj Kumar Sahu, Karali Patra, Characterization of tensile behavior of a dielectric elastomer at large deformations, Journal of The Institution of Engineers (India): Series C, vol. 95, 1-6, 2014.
  11. Raj Kumar Sahu, B. Pramanik, K. Patra, S. Bhaumik, A. K. Pandey and D. K. Setua, Dissipation Factor of Acrylic Dielectric Elastomer-An Experimental Study, Journal of nanoscience and nanotechnology, vol. 14, 1-6, 2014. (Impact Factor:- 1.338)
  12. Raj Kumar Sahu, Karali Patra, Estimation of elastic modulus of dielectric elastomer materials using Mooney-Rivlin and Ogden Models, Advanced Materials Research, Vol. 685, pp. 331-335, 2013
  13. Raj Kumar Sahu, Shrabani Majumdar and B.N Prasad, “Forming Limit Diagram of High Strength Steel Sheet (DP-590)”, MIT International Journal of Mechanical Engineering Vol. 1(2), PP. 114-118, 2011.

Publications in International Conferences (Published/accepted: 16)

  1. Raj  Kumar Sahu, S. Yadu, S. Raja, V. K. Singh, K. Patra, “The effect of Micro       Molecular Parameters on the Actuation Performance of Electro Active Polymers”, ASME's International Mechanical Engineering Congress and Exposition,  Tampa, Florida (USA), November 3-9, 2017. (Accepted)
  2. S. Yadu, S. Raja, V. K. Singh, Raj  Kumar Sahu, K. Patra, “The effect of Monomers on the Actuation Performance of Electro Active Polymers”, 8th International Conference on Advancements in Polymeric Materials (Marching towards smart products and multifunctional Materials), IISC Bangalore, 11-13 February 2017
  3. Lokendra Kumar, Shrabani Majumdar, Raj Kumar Sahu, “Measurement of the Residual Stress in Hot Rolled Strip using Strain Gauge Method”, International Conference on Functional Materials, Characterization, Solid State Physics, Power, Thermal and Combustion Energy (FCSPTC) Eluru, Andrapradesh, 07th – 08th April 2017.
  4. Manoj Singh Bisht, S Majumdar and Raj Kumar Sahu, “Role of dislocation structure in LCF failure of 800 MPa ferritic steel strengthened with nano-precipitates”, Fatigue, Fracture and Integrity Assessment (FFIA)-2017, Jadavpur University 23-24th March 2017.
  5. Rityuj Singh Parihar, Raj Kumar Sahu, Srinivasu Gangi Setti, “Finite Element Modelling of Functionally Graded Cemented Tungsten Carbide Compaction with Flow Stress Estimation”, International Conference on Emerging Trends in Materials and Manufacturing Engineering (IMME 2017) at NIT Trichy, 10-12th March 2017. 
  6. Mohit Kumar Sahu and Raj Kumar Sahu, “Optimization of Stirring Parameters Using CFD Simulations for HAMCs Synthesis by Stir Casting Process”, International Conference on Emerging Trends in Materials and Manufacturing Engineering (IMME 2017) at NIT Trichy, 10-12th March 2017.
  7. Rityuj Singh Parihar, Srinivasu Gangi Setti, Raj Kumar Sahu, “Preliminary investigation of ball-milled nano crystalline WC/Co/CaF2 powder for the preparation of functionally Graded composite for cutting tool applications”, International Conference on Advances in Functional Materials (AFM 2016) at Jeju Island, South Korea, Aug 08-11, 2016.
  8. Rityuj Singh Parihar,  Raj Kumar Sahu,Srinivasu Gangi Setti, “Finite Element Analysis of Cutting Forces Generated in Turning Process using Deform 3D Software International  Conference on Advancements in Aeromechanical Materials for Manufacturing (ICAAMM2016), 7th - 9th July 2016, MLR, Institute of Technology, Hyderabad, India.
  9. Raj Kumar Sahu, Abhijeet Ranjan Keshari, Iqbal Hussain,  Pulkit Jain, “Non-linear relationship between tensile property and hole expansion ratio”, Proceedings of the 17th ISME conference on Advances in Mechanical Engineering, IIT Delhi,  October 3-4, 2015.
  10. Raj Kumar Sahu, K. Patra, S. Bhaumik, A. K. Pandey, D. K. Setua, “Stress-strain behaviour of dielectric elastomer for actuators”, International Conference on Mechanical Properties of Materials (ICMPM 2014) at Barcelona, Spain, December 18-20 2014.
  11. Raj Kumar Sahu, K. Sudharshan, K. Patra, S. Bhaumik, “Evaluation of Area Strain Response of Dielectric Elastomer Actuator Using Image Processing Technique”, Proc. of SPIE vol. 9056, 90562C-1, at California, USA, 9-13th March 2014.
  12. Raj Kumar Sahu, B. Pramanik, K. Patra, S. Bhaumik, A. K. Pandey and D. K. Setua, Dissipation Factor of Acrylic Dielectric Elastomer-An Experimental Study, The 7th World Congress on Biomimetics, Artificial Muscle and Nano-bio, Jeju Island, South Korea, Aug 26-30, 2013.
  13. Raj Kumar Sahu, K. Patra, S. Bhaumik, A. K. Pandey, D. K. Setua, Development of uniaxial tensile pre-straining device for the elastomeric materials, Proceedings of the 3rd International Conference on Production and Industrial Engineering (CPIE 2013), Jalandhar, India, 29-31 March, 2013.
  14. Raj Kumar Sahu, Karali Patra, “Estimation of Elastic modulus of dielectric elastomer materials using Mooney-Rivlin and Ogden models”, 3rd International Conference on Advanced Materials Research, January 19-20, 2013, Dubai, U.A.E.
  15. B. Pramanik, R.K. Sahu, S. Bhaumik, K Patra, A. K. Pandey, D.K. Setua, Experimental Study on Permittivity of Acrylic Dielectric Elastomer, IEEE Int. Conference on Properties and Applications of Dielectric Materials (ICPADM 2012), Bangalore, India, July 24-28, 2012
  16. Raj Kumar Sahu, B. Pramanik, S. Bhaumik, K. Patra, A.K. Pandey, D.K. Setua, “Study on mechanical and dielectric behavior of VHB 4910 for sensor and actuator application,” Presented , EUROEAP Conference (Second  international conference on Electromechanically Active Polymer (EAP) transducers & artificial muscles ), May 29 – 30,2012, Berlin, Germany.
  17. Vijay Narayan, Satish Solanki, Raj kumar Sahu, Karali Patra, Shovan Bhaumik “Estimation of specific energy density of dielectric elastomer materials using mooney-rivlin and ogden models” International Conference on Advanced Materials, December12-16,2011,Coimbatore,India.
  •  Publications in National Conferences (Published/accepted: 4)
  1. Satish Solanki, Raj Kumar Sahu, Karali Patra and Shovan Bhaumik, A Theoretical Model for Viscoelastic Behavior of Dielectric Elastomer Materials, Proceedings of the 26th Indian Engineering congress 2011 (IEC2011), pp. 142,  December 15-18, 2011, Bangalore, India.
  2.  Vijay Narayan, Raj Kumar Sahu, Karali Patra and Shovan Bhaumik, Specific Energy Density of Dielectric Elastomer Actuator Materials, Proceedings of the 26th Indian Engineering congress 2011 (IEC2011),  pp 133, December 15-18, 2011, Bangalore, India.
  3.  Raj Kumar Sahu, Munshi Imran Hossain,  Karali Patra and Shovan Bhaumik,  Dielectric Elastomers: Materials for Future Actuators, 10th National Conference on Industrial Problems on Machines and Mechanisms (IPROMM–2010),  December 17-18, 2010, MNIT, Jaipur (Rajsthan) ISBN: 978-81-908723-4-8.
  4.  Raj Kumar Sahu, Shrabani Majumdar and B.N Prasad, “Application of Metal Forming in Manufacturing Engineering”, National Conference on Recent trends and advances in the field of eco friendly plant machineries, automobile and material handling system, January 29-30,2011, MIT West Bengal.

 

Other Info.

Membership

Membership/Fellowship in Professional Bodies if any

Name of the Professional Body

Membership status (Life/ Annual)

Member of ASME  No. 102122032

Annual

Member of the Institutions of Engineers (India) No. M-1578701

Life

Life time member of the Indian Society for technical education (ISTE) No. LM- 116544

Life

Member of SAE India (The Engineering Society for Advance mobility land sea air and space), No. 7150510226

Annual

Member of IACSIT No.: 80349679

Life

Member of science and engineering institute (SCIEI). No. 20121214001

Life



Achievements and Responsibilities Handled:

Number of Awards/ Honours/Prizes/Medals:    04

Awarded (Title)

Who’s Who in the World 2015 (32nd Edition)

Marquis Who’s Who 2017 Albert Nelson Marquis Lifetime Achievement Award

International Travel Support (ITS) from SERB in 2014 and 2017. 

 

Research Experience

2009-2010:  Researcher, Research and Development Division (Tata Steel Limited, Jamshedpur)

April  2013- Sept. 2013: Visiting Scholar, Dept. Of Mechanical Engineering, University of Saskatchewan, Canada