Dr. Sanjay Kumar Rai

Associate Professor
Department/School/Unit Name
School of Biomedical Engineering IIT (BHU), Varanasi
Phone No(s): +91-9984235990
Email: skrai.bme@iitbhu.ac.in
Area of Interest: Biomechanics, Computational Biomechanics, Orthopedic Biomechanics, Cardiovascular Biomechanics, Finite Element Analysis and Computational Fluid Dynamics

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. Sumit Kumar, B. V. Rathish Kumar, Sanjay Kumar Rai, Om Shankar; An open loop 0D-3D modeling of pulsatile hemodynamics for the diagnosis of a suspected coronary arterial disease with patient data. Physics of Fluids  October 2023; 35 (10): 101907. https://doi.org/10.1063/5.0169867

2. Sumit kumar, B.V.ratish kumar, S.K. Rai, “Influence of abdominal aortic aneurysm shape on hemodynamics in human aortofemoral arteries: A transient open-loop study”, April 2023, Physics of Fluids 35(4):41903, https://doi.org/10.1063/5.0139085   

3. 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”, Journal of Materials Engineering and Performance,  September, 2022,Springer, https://doi.org/10.1007/s11665-022-07322-1   

4. Pandey Aishwarya, Durrani Farhan, Rai Sanjay Kumar, Singh Nishant Kumar, Singh Preeti, Verma Rati, Kumar Jitendra, “ Comparison between all-on-four and all-on-six treatment concepts on stress distribution for full-mouth rehabilitation using three-dimensional finite element analysis: A biomechanical study”, Journal of Indian Society of Periodontology, 27(2) pp.180-188, March-Apr 2023,  DOI:10.4103/jisp.jisp_278_22 

5. Sumit Kumar, B.V.Ratish Kumar, S.K.Rai and Om Shankar, "Effect of rheological models on pulsatile hemodynamics in a multiply afflicted descending human aortic network" ,Computer methods In Biomechanics and Biomedical Engineering” ,Jan 2023 , http://dx.doi.org/10.1080/10255842.2023.2170714 

6. 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, https://doi.org/10.3390/coatings12060839 

7. 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 26, June 2022, pp.680-699, https://doi.org/10.1080/10255842.2022.2082839

8. 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, https://doi.org/10.1177/095440892211112

9. 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 Splinted With Different Materials: Three dimensional Finite Element Analysis”: Indian Journal of Dental Research, Vol 30, No.1, January-February 2019, pp. 97-101, DOI: 10.4103/ijdr.IJDR_250_17

10. 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, pp.56-61, https://doi.org/10.1016/j.coco.2018.11.004 

11. 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, pp.447-45, doi: 10.4103/ortho.IJOrtho_224_16

12. Kumar, C., Gaur, A., Rai, S.K. and Maiti, P., Piezo devices using poly (vinylidene fluoride)/reduced graphene oxide hybrid for energy harvesting. Nano-Structures & Nano-Objects, 2017, Vol. 12, Elsevier pp.174-181, https://doi.org/10.1016/j.nanoso.2017.10.006

13. Praveen Kr. Gupta, Jitendra Singh, K.N. Rai & S.K. Rai, “Solution of the heat transfer problem in tissues during hyperthermia by Finite difference- decomposition method,”, Applied Mathematics and Computation (ELSEVIER),2013, Volume 219, Issue 12, pp. 6882-6892, https://doi.org/10.1016/j.amc.2013.01.020

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-Electric 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 Awarded(2022)
5 Mr. Sumit Kumar Computational Hemodynamic In Cardiovascular System Under Normal And Pathological Conditions With Patient Data Awarded(2023)
6 Mrs. Shubhangi  Expanding Horizons of Electrochemical sensor Development using Metal Organic Frameworks (MOFs) and Exploring their Applications in Bio-molecular detection. In-progress
7 Mr. Priyanshu Soni Blood flow dynamics analysis using CFD and experimental techniques In progress