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Dr. Sanjay Kumar Rai
Associate Professor
School of Biomedical Engineering IIT BHU
Area of Interest: 
Biomechanics, Computational Biomechanics, Orthopedic Biomechanics, Cardiovascular Biomechanics

Academic Qualifications:   
                                           B.E., M.Tech. (Biomedical Engineering) IIT (BHU), Ph.D. (Biomedical Engineering) IIT (BHU)


1. Biomechanics
2. Biomaterials


Area of Research: Biomechanics Laboratory is associated with the research in the field of Orthopaedic Implants, Dental Biomechanics,  and development of cardiovascular devices. Present work focuses primarily on computational biomechanics of lower extremity as well as dental biomechanics.It deals with 3D modeling using CT and MRI data, implant design (CAD/CAM) and Optimization as well as simulations (Finite Element Analysis). Lab has its collaboration with Department of Radiology and Diagnostic, Department of Cardiology,Department of Orthopaedics and Dental Sciences Institute of Medical Sciences BHU Varanasi. Lab is fully equipped with the licensed version of software such as Ansys,Mimics Medical +3Matic Medical, & Anybody software.

Papers Published in Journals:

1. Jitendra Kumar, Rati Verma, Nitesh Kumar Singh, Nishant Kumar Singh, Neelam Shobha Nirala, S.K. Rai, "Mechanical property analysis of TPMS Inspired Porous Scaffold for Bone Applications: A Compromise Between Desired Mechanical Strength and Additive Manufacturability" (Accepted) for publication in the Journal of Materials Engineering and Performance, Springer

2. Sumit Kumar, S.K.Rai, B.V.Ratish Kumar and Om Shankar, “The pulsatile 3D-Hemodynamics in a doubly afflicted human descending abdominal artery with iliac branching”: Computer methods In Biomechanics and Biomedical Engineering, Vol 25, June 2022, pp.1-20

3. Rati Verma, Jitendra Kumar, Nishant Kumar Singh, Sanjay Kumar Rai, Kuldeep k. Saxena and Jinyang Xu, “ Design and Analysis of Biomedical Scaffolds using TPMS- based Porous Structures Inspired from Additive manufacturing”, Coatings- MDPI,Vol.12, June 2022, pp. 1-22

4. Rati Verma, Jitendra Kumar, Nishant Kumar Singh, Sanjay Kumar Rai, Shekhar Kumta, Shankar Sehgal and Kuldeep Saxena, “ Low elastic modulus and highly porous triply periodic minimal surfaces architecture implant for orthopaedic applications”, Journal of Process Engineering SAGE Special Issue: Additive manufacturing : Cost- effective and Sustainable Solutions for Medical Applications, June 2022, pp. 1-10

5. Farhan Durrani, Arpit Galohda, Nishant Kumar Singh, Rati Verma, Sanjay Kumar Rai, Dhananjay Singh Yadav, Karthickraj SM, “Evaluation and Comparison of Stress Distribution Around Periodontally Compromised Mobile Teeth Splint  With Different Materials: 3D Finite Element Analysis”: Indian Journal of Dental Research, Vol 30 No.1, January-February 2019,97-101.

6. C Kumar, A Gaur, S Tiwari, A Biswash, S K Rai, P Maiti, " Bio-waste polymer hybrid as induced piezoelectric material with high energy harvesting efficiency" Composites Communications, 2019, Vol. 11, 56-61

7. Nishant Kumar Singh, Sanjay Kumar Rai, Amit Rastogi : “Possible vascular injury due to screw eccentricity in minimally invasive total hip arthroplasty”, Indian Journal of Orthopaedics July-August 2017,Vol.51,447-454

8. Chandan Kumar, Anupama Gaur, Sanjay Kumar Rai, Pralay Maiti, “Piezo devices using poly (vinylidene fluoride)/reduced graphene oxide hybrid for energy harvesting”, Nano-Structures & Nano-Objects (Elsevier), 2017, Vol.12, 174-181

9. Praveen Kumar Gupta, Jitendra Singh, K.N.Rai, S.K.Rai, “Solution of the heat transfer problem in tissue during hyperthermia by finite difference- decomposition method”, Applied Mathematics and Computation,2013, Vol.219,6882-6892.

Papers Published in Conferences:

1. Rati, Nishant Kumar Singh, Sanjay Kumar Rai, “Survey of Finite Element Analysis in Orthopedic Biomechanics: Advances and challenges,” 2014, National Conference on Present Scenario and Future Trends in Biomedical Engineering and Healthcare Technologies, IIT (BHU).

2. Nishant Kumar Singh, Rati and Sanjay Kumar Rai, “Solid model generation of knee joint and alignment analysis in total knee arthroplasty (TKA) in obese patient - a finite element study,” 2014, National Conference on Bio-Mechanical Science, vol.1,chap.17, pp. 107-113.Bhubaneswar, Odisha.    
 3. S.K. Rai, Nishant Kr. Singh and Nilanjan Mallik “Finite Element Analysis of New Cementless Hip Arthroplasty and Biomechanical Comparison With Different Shapes to Facilitate Minimally Invasive Surgery (MIS)”, International  Conference on Computer Aided Engineering, Dec, 19-21, 2013, Department of Mechanical Engineering, Indian Institute of Technology, Madras, India, pp. 786-790.

4. S.K. Rai, Nishant Kr. Singh and Nilanjan Mallik “Variation in total knee arthroplasty (TKA) with genu varum & valgum deformity – A Finite element Study”, International  Conference on Mathematical Modeling and Numerical Simulation, Jul, 01-03, 2013, Department of Applied Mathematics, BBA Central University,Lucknow, India. 

5. Nishant Kumar Singh, Rati and S.K. Rai “Solid model generation of knee joint & alignment analysis in total knee arthroplasty (TKA) in obese patient  A finite element study”, National Conference on Bio-Mechanical Science, March, 7-8, 2014, Center of Bio-Mechanical Science, Siksha ‘O’ Anusandhan University, Bhubaneswar, Odisha, India.

PhD Supervision:

S.N. Name Title of the Phd Thesis Status
1 Mr. Praveen Kumar Gupta Some studies on Mathematical modeling of heat transfer in biological tissues AWARDED(2011)
2 Mr. Nishant Kumar Singh Design and analysis of novel hip implants driven by shape memory alloy and study the effect of eccentric screw on vascular injury during total hip replacement AWARDED(2017)
3 Mr. Chandan Kumar Energy harvesting using Piezo-elecric crystals Awarded (2019)
4 Ms. Rati  Design and Optimization of Triply Periodic Minimal Surfaces based Porous Scaffolds for Bone Applications: A Conceptual Prosthetic Design for Restoration of Large Bone Defects Submitted (30-06-2022)
5 Mr. Sumit Design of Cardiovascular Devices In progress

Convener, DUGC (Departmental Undergraduate Committee (2014)
Member, Advisory Committee, Training and Placement Cell ,IIT-BHU (July 2015- June-2020)
Convener, DPGC ( September 2020- August 2021)

1. A project entitled "Biomechanical Failure Analysis of Natural and Artificial Femoral joints using some Finite Element based Softwares’" .Mr. Bolarinwa Gabriel Oladeji from Nigeria did his research Project under my guidance ( funded by NAM S&T centre New Delhi, Amount 270000/ INR) during May 2015- Oct.2015

2.  A project entitled“ Development of Cardiac Model for Prediction of Human Heart Failure using Noninvasive medical imaging and Computational Fluid Dynamics techniques” sponsored by Indian Council of  Medical Research (ICMR) New Delhi of Total Grant (INR 52,31,900/) has been sanctioned for three years (Project start date 25/11/2021) (PI : Dr. SANJAY KUMAR RAI).