Department of Mechanical Engineering

Assistant Professor, (February 2015 – Present), North Eastern Regional Institute of Science and Technology, Nirjuli, Arunachal Pradesh, India.

Member for National Governing Council of Indian Welding Society for the Period 2019- 2022.

Assistant Professor, (October 2009 – November 2010), Swamy Ramanada Tirtha Institute of Science and Technology, Andhra Pradesh, India.

Honors and Awards

1. Sohini Chowdhury, N. Yadaiah, Chander Prakash, Seeram Ramakrishna, Saurav Dixit, Lovi Raj Gulta, Dharam Buddhi: Laser Powder Bed Fusion: A State-of-the-Art Review of the Technology, Materials, Properties & Defects, and Numerical Modelling, Journal of Materials Research and Technology (ISSN: 2238-7854), Vol. 20, pp. 2109-2172, 2022. (I.F. 6.4)

https://doi.org/10.1016/j.jmrt.2022.07.121

(The most downloaded article in the last 90 days dated August 2024)

2. N. Yadaiah and S. Bag: Development of egg-configuration heat source model in numerical simulation of autogenous fusion welding process, International Journal of Thermal Sciences, Vol. 86, pp. 125-138, 2014. (Science Direct top 25 list of most downloaded articles (Rank 8^th for July-September, 2014 and 19^th for October-December, 2014)).

3. N. Yadaiah, S. Bag, C. P. Paul and L. M. Kukreja: Efficient Finite Element Modeling of Fiber Laser Welding Process under Conduction Regime on 316 Stainless Steel Plate, International Conference on Advances in Mechanical Sciences 2014, Hyderabad, India, from 9th to 11th January 2014, pp. 24-31. (Awarded the best research paper presented in International Conference on Advances in Mechanical Sciences 2014).

4. Ministry of Human Resource Development (MHRD) Scholarship for doctoral studies at Indian Institute of Technology Guwahati, Guwahati, India.

5. The Graduate Aptitude Test in Engineering (GATE) 2007 scholarship for post graduate studies (M.E) at Andhra University College of Engineering, Visakhapatnam, Andhra Pradesh, India.

Invited/keynote lectures

1. Delivered an invited lecture on "Numerical Modelling of Additive manufacturing" in a six-day TEQIP III sponsored workshop on "Materials, Manufacturing and Modelling" organized by the Department of Manufacturing Engineering, National Institute of Technology Jamshedpur, Jamshedpur, India on 21^st May 2019.

2. Delivered an invited lecture on “An introduction to additive manufacturing processes: Overview and numerical modeling” at National Institute of Technical Teachers' Training and Research, Kolkata, India on 22^nd May, 2019.

3. Delivered an invited lecture on “Advances in additive manufacturing processes: An overview and numerical modeling” at Department of Mechanical Engineering, Royal School of Engineering and Technology, Royal Global University, Guwahati, India, on 12^th June, 2020.

4. Delivered a lecture on “Identification of modes of laser welding using parametric studies” in One Week Online International Workshop on “Advancements and Future Research Trends in Laser based Manufacturing Processes (AFRLMP-2020)” from 1^st - 5^th September 2020 organized by Department of Mechanical Engineering, North Eastern Regional Institute of Science and Technology, Nirjuli, India.

5. Delivered an invited lecture on “Development of a mathematical heat source model for simulation of fusion welding processes” in a TEQIP-III sponsored online faculty development program (FDP) on ‘Recent advancement in welding and joining technology (RAWJT-2020)” from 12^th – 16^th September 2020 organized by Department of Mechanical Engineering, Veer Surendra Sai University of Technology, Burla, Odisha, India.

6. Delivered an invited lecture on “Mathematical Heat Source Models for Simulation of Fusion Welding Processes" in WELD 2023 Golden Jubilee Program organized by The Indian Institute of Welding (IIW India), Kolkata Branch, India during 11^th and 12^th March, 2023.

1. Obtained Ph.D. in Mechanical Engineering Department, Indian Institute of Technology (IIT) Guwahati, Guwahati, Assam, India.
2. 2. Obtained M. E (CAD/CAM) in Mechanical Engineering Department, Andhra University College of Engineering (AUCE), Visakhapatnam, Andhra Pradesh, India.
3. 3. Obtained B.Tech in Mechanical Engineering from Jawaharlal Nehru Technological University College of Engineering Kakinada, Kakinada, Andhra Pradesh, India.

B.Tech Project Coordinator from July 2015 to June 2020.

COMPUTER LAB Co-in charge from July 2015 to July 2020.

CIM and ROBOTICS LAB Co-in charge from July 2015 to July 2020.

Coordinator of Mechanical Engineering Association of NERIST (MAN), Department organization for students and faculty from July 2017 to Continuing.

Worked as a member for National Board of Accreditation (NBA) works of Mechanical Engineering Department at NERIST, 2015-16.

Worked as a member for National Board of Accreditation (NBA) works of Mechanical Engineering Department at NERIST, 2019-20.

Book (s)

1. Sohini Chowdhury, Yadaiah Nirsanametla and M. Chandrasekaran: Laser Based Additive Manufacturing: State-of-Art, Heat Transfer Analysis and Capabilities, LAP-LAMBERT Academic Publishing Co. Ltd., Germany, ISBN 978-3-659-93561-9, 2016.

Link: https://www.morebooks.shop/shop-ui/shop/product/978-3-659-93561-9

Book Chapter (s)

1. Yadaiah Nirsanametla, S. Bag, C. P. Paul and L. M. Kukreja: Fiber laser welding in a controlled inert gas atmosphere: An experimental and numerical investigation, in Laser Based Manufacturing, Springer, Chapter 20, pp. 399-419, 2015. Print ISBN: 978-81-322-2351-1 Electronic ISBN: 978-81-322-2352-8

DOI: https://doi.org/10.1007/978-81-322-2352-8_20

2. Sapam Ningthemba Singh, Sohini Chowdhury, Md. S. Mujaheed Khan, Muralidhar Manapuram and Yadaiah Nirsanametla: FE based heat transfer analysis of laser additive manufacturing on Ti-6Al-4V alloy, in Advances in Computational Methods in Manufacturing, Series: Lecture Notes on Multidisciplinary Industrial Engineering, Springer, eBook ISBN: 978-981-329-072-3, Hardcover ISBN: 978-981-329-071-6, Series ISSN: 2522-5022, pp. 381-392, 2019.

DOI: https://doi.org/10.1007/978-981-32-9072-3_33

3. Sohini Chowdhury, Yadaiah Nirsanametla and Manapuram Muralidhar: Investigation on metallographic analysis of electron beam Ti6Al4V alloy welds, in Advances in Computational Methods in Manufacturing, Series: Lecture Notes on Multidisciplinary Industrial Engineering, Springer, eBook ISBN: 978-981-329-072-3, Hardcover ISBN: 978-981-329-071-6, Series ISSN: 2522-5022, pp. 121-132, 2019.

DOI: https://doi.org/10.1007/978-981-32-9072-3_11

4. Sapam Ningthemba Singh, Yadaiah Nirsanametla, Sohini Chowdhury and M. Muralidhar: Influence of laser power and scan speed during laser assisted multi-layer additive manufacturing using finite element modeling, in 3D printing in biomedical engineering, Springer, Hardcover ISBN: 978-981-15-5423-0, Series ISSN: 2524-5384, pp. 289-316, 2020.

DOI: https://doi.org/10.1007/978-981-15-5424-7_14

International Journals

1. Nirsanametla Yadaiah and S. Bag: Effect of heat source parameters in thermal and mechanical analysis of linear GTA welding process, ISIJ International (Online ISSN: 1347-5460 and Print ISSN: 0915-1559), Vol. 52(11), pp.2069-2075, 2012. (SCI and I.F. 1.961)

DOI: https://doi.org/10.2355/isijinternational.52.2069

2. Nirsanametla Yadaiah and S. Bag: Role of oxygen as surface active element in linear GTA welding process, Journal of Materials Engineering and Performance (ISSN: 1059-9495), Vol. 22 (11), pp. 3199-3209, 2013. (SCI and I.F. 2.3)

DOI: https://doi.org/10.1007/s11665-013-0621-0

3. S. Singh, N. Yadaiah, S. Bag and S. Pal: Numerical simulation of welding induced residual stress in fusion welding process using adaptive volumetric heat source, The Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science (Electronic ISSN: 2041-2983 and Print ISSN: 0954-4062), Vol. 228(16), pp. 2960-2972, 2014. (SCI and I.F. 2.0)

DOI: https://doi.org/10.1177/0954406214525601

4. N. Yadaiah and S. Bag: Development of egg-configuration heat source model in numerical simulation of autogenous fusion welding process, International Journal of Thermal Sciences (ISSN: 1290-0729), Vol. 86, pp. 125-138, 2014. (SCI and I.F. 4.5) (One of the most downloaded article from 'Science Direct' (Article Rank # 8th from July to September 2014) and (Rank # 19th from October to December 2014)

DOI: https://doi.org/10.1016/j.ijthermalsci.2014.06.032

5. N. Yadaiah, S. Bag, C. P. Paul and L. M. Kukreja: Influence of self-protective atmosphere in fiber laser welding of austenitic stainless steel, International Journal of Advanced Manufacturing Technology (Electronic ISSN: 1433-3015 and Print ISSN: 0268-3768), Vol. 86 (1), pp. 853-870, 2016. (SCI and I.F. 3.4)

DOI: https://doi.org/10.1007/s00170-015-8194-8

6. Benjamin Das, N. Yadaiah, Rupshree Ozah, Sohini Chowdhury, Arpan Kumar Mondal and M. Muralidhar: A perspective review on estimation of keyhole profile during plasma arc welding process, Materials Today: Proceedings (ISSN: 2214-7853), Vol. 5 (2), pp. 6345-6350, 2018. (Scopus)

DOI: https://doi.org/10.1016/j.matpr.2017.12.244

7. Sohini Chowdhury, N. Yadaiah, S. Mujaheed Khan, Rupshree Ozah, Benjamin Das and M. Muralidhar: A perspective review on experimental investigation and numerical modeling of electron beam welding process, Materials Today: Proceedings (ISSN: 2214-7853), Vol. 5 (2), pp. 4811-4817, 2018. (Scopus)

DOI: https://doi.org/10.1016/j.matpr.2017.12.055

8. Sohini Chowdhury, Yadaiah Nirsanametla and Manapuram Muralidhar: Finite element based transient heat transfer analysis of Ti2AlNb electron beam welds using hybrid volumetric heat source, Indian Welding Journal (Print ISSN: 0046-9092), Vol. 52, pp. 49-55, 2019. (UGC Approved Journal in 2019)

DOI: https://doi.org/10.22486/iwj%2F2019%2Fv52%2Fi1%2F178190

9. Sohini Chowdhury, Yadaiah Nirsanametla, M Muralidhar, Swarup Bag and S K Patra: Influence of weld parameters on weld regimes and vaporization rate in electron beam welding of Ti6Al4V alloy, Journal of the Brazilian Society of Mechanical Sciences and Engineering (Electronic ISSN: 1806-3691 and Print ISSN: 1678-5878), 41:180, 2019. (SCI and I.F. 2.2)

DOI: https://doi.org/10.1007/s40430-019-1689-8

10. Sohini Chowdhury, Yadaiah Nirsanametla, M Muralidhar: Investigation on Keyhole Mode Fiber Laser Welding of SS 316 in a Self-Protected Atmosphere, The Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science (Electronic ISSN: 2041-2983 and Print ISSN: 0954-4062), Vol. 233(18), pp.6602-6615, 2019. (SCI and I.F. 2.0)

DOI: https://doi.org/10.1177/0954406219864137

11. S. Shiva, N. Yadaiah, I. A. Palani, C. P. Paul and K. S. Bindra: Thermo mechanical analyses and characterizations of TiNiCu shape memory alloy structures developed by laser additive manufacturing, Journal of Manufacturing Processes (ISSN: 1526-6125), Vol. 48, pp.98-109, 2019. (SCI and I.F. 6.2)

DOI: https://doi.org/10.1016/j.jmapro.2019.11.003

12. Sohini Chowdhury, Yadaiah Nirsanametla, M Muralidhar, Swarup Bag, C. P. Paul and K. S. Bindra: Identification of modes of welding using parametric studies during ytterbium fiber laser welding, Journal of Manufacturing Processes (ISSN: 1526-6125), Vol. 57, pp.748-761, 2020. (SCI and I.F. 6.2)

DOI: https://doi.org/10.1016/j.jmapro.2020.07.038

13. Sapam Ningthemba Singh, Sohini Chowdhury, Yadaiah Nirsanametla, Deepati Anil Kumar, Chander Prakash, Linda Yongling Wu, H. Y. Zheng, Sunpreet Singh and C. I. Pruncu: A comparative analysis of laser additive manufacturing of high layer thickness pure Ti and Inconel 718 alloy materials using finite element method, Materials (ISSN: 1996-1944), Vol. 14 (4): 876, 2021. (SCI and I.F. 3.4)

DOI: https://doi.org/10.3390/ma14040876

14. Sohini Chowdhury, N. Yadaiah, M. Muralidhar, Deepati Anil Kumar, C. P. Paul, S. K. Patra, Sunpreet Singh, Grzegorz Królczyk and Chander Prakash: Comparison of Microstructure and Mechanical Performance of laser and electron beam welded Ti6Al4V alloy, Journal of the Brazilian Society of Mechanical Sciences and Engineering (Electronic ISSN: 1806-3691 and Print ISSN: 1678-5878), Vol. 43, 173, 2021. (SCI and I.F. 2.2)

DOI: https://doi.org/10.1007/s40430-021-02903-y

15. Sohini Chowdhury, N. Yadaiah, D. Anil Kumar, M. Muralidhar, C. P. Paul, Chander Prakash, Grzegorz Królczyk and Aokesh Pramanik: Influence of tack operation on metallographic and angular distortion in electron beam welding of Ti-6A-l4V alloy, Measurement: Journal of the International Measurement Confederation (ISSN: 0263-2241), Vol. 175, 109160, 2021. (SCI and I.F. 5.6)

DOI: https://doi.org/10.1016/j.measurement.2021.109160

16. A. K. Mondal, B. Kumar, S. Bag, Y. Nirsanametla and P. Biswas: Development of avocado shape heat source model for finite element based heat transfer analysis of high-velocity arc welding process, International Journal of Thermal Sciences (ISSN: 1290-0729), Vol. 166, 107005, 2021. (SCI and I.F. 4.5)

DOI: https://doi.org/10.1016/j.ijthermalsci.2021.107005

17. Raman Kumar, Rohit Dubey, Sehijpal Singh, Sunpreet Singh, Chander Prakash, Yadaiah Nirsanametla, Grzegorz Królczyk and Roman Chudy: Multiple‐Criteria Decision‐Making and Sensitivity Analysis for Selection of Materials for Knee Implant Femoral Component, Materials (ISSN: 1996-1944), Vol. 14 (8): 2084, 2021. (SCI and I.F. 3.4)

DOI: https://doi.org/10.3390/ma14082084

18. Chander Prakash, Rahul Wandra, Sunpreet Singh, Alokesh Pramanic, Animesh Basak, Aditya Aggarwal and N. Yadaiah: Synthesis of functionalized TiO₂-loaded HAp-coating by ball-burnishing assisted electric discharge cladding process, Materials Letters (ISSN: 0167-577X), Vol. 301: 130282, 2021. (SCI and I.F. 3.0)

DOI: https://doi.org/10.1016/j.matlet.2021.130282

19. Md. Rezaul Karim, Juairiya Binte Tariq, Shah Murtoza Morshed, Sabbir Hossain Shawon, Abir Hasan, Chander Prakash, Sunpreet Singh, Raman Kumar, Yadaiah Nirsanametla and Catalin I. Pruncu: Environmental, Economical and Technological Analysis of MQL-Assisted Machining of Al-Mg-Zr Alloy Using PCD Tool, Sustainability (ISSN: 2071-1050), Vol. 13 (13): 7321, 2021. (SCIE and I.F. 3.9)

DOI: https://doi.org/10.3390/su13137321

20. Benjamin Das, Yadaiah Nirsanametla and Arpan Kumar Mondal: An investigation on heat transfer analysis of Micro-Plasma arc welds using finite element method, Materials Today: Proceedings (ISSN: 2214-7853), Vol. 62 (6), pp. 4249-4253, 2022. (Scopus)

DOI: https://doi.org/10.1016/j.matpr.2022.04.754

21. Gollo Rinu, Sandeep Singh, Arpan Kumar Mondal and Yadaiah Nirsanametla: Metallographic analysis of in-house developed marine grade aluminum alloy AA5086 friction stir welds, Materials Today: Proceedings (ISSN: 2214-7853), Vol. 62 (6), pp. 4202-4206, 2022. (Scopus)

DOI: https://doi.org/10.1016/j.matpr.2022.04.726

22. Gollo Rinu, Sandeep Singh, N. Yadaiah, D. Anil Kumar, Chander Prakash and Ketan Kotecha: Experimental investigation of Defect Formation, Microstructure and Mechanical Properties in Friction Stir Welding of AA5086, Metallurgical Research & Technology (ISSN: 2271-3646 - eISSN: 2271-3654), Vol. 119 (5), 544, 2022. (SCIE and I.F. 1.1)

DOI: https://doi.org/10.1051/metal/2022068

23. Sohini Chowdhury, N. Yadaiah, Chander Prakash, Seeram Ramakrishna, Saurav Dixit, Lovi Raj Gulta, Dharam Buddhi: Laser Powder Bed Fusion: A State-of-the-Art Review of the Technology, Materials, Properties & Defects, and Numerical Modelling, Journal of Materials Research and Technology (ISSN: 2238-7854), Vol. 20, pp. 2109-2172, 2022. (SCIE and I.F. 6.4)

DOI: https://doi.org/10.1016/j.jmrt.2022.07.121

24. Gollo Rinu, Sandeep Singh, N. Yadaiah, Chander Prakash and Dharam Buddhi: Influence of Welding Speed and Material Location on Microstructure and Mechanical Properties of Friction Stir Welding Joints of AA6061-AA7050, Materials Today Communications (ISSN: 2352-4928), Vol. 33, 104419, 2022. (SCIE and I.F. 3.8)

DOI: https://doi.org/10.1016/j.mtcomm.2022.104419

25. Anil Kumar Deepati, Sohini Chowdhury, Nabam Teyi, Yadaiah Nirsanametla, Chander Prakash, Kuldeep Kumar Saxena and Sandeep Kumar: Influence of surface-active elements on GTA welds with respect to metallographic analysis and temperature distribution, International Journal on Interactive Design and Manufacturing (IJIDeM) (Electronic ISSN: 1955-2505 and Print ISSN: 1955-2513), 2022. (SCOPUS and I.F. 2.1)

DOI: https://doi.org/10.1007/s12008-022-01108-4

26. Sapam Ningthemba Singh, Ashish B Deoghare and Yadaiah Nirsanametla: Study of thermal behavior during the directed energy deposition (DED) of Ti6Al4V alloy using finite element modeling (FEM), Materials Today: Proceedings (ISSN: 2214-7853), Vol. 76, part 4, pp. 617-623, 2023. (SCOPUS)

DOI: https://doi.org/10.1016/j.matpr.2022.10.238

27. Benjamin Das, Sohini Chowdhury, Yadaiah Nirsanametla, Chander Prakash, Lovi Raj Gupta and Vladimir Smirnov: Three-Dimensional Transient Heat Transfer Analysis of Micro-Plasma Arc Welding Process Using Two Different Heat Source Models, High Temperature Materials and Processes (ISSN: 2191-0324), Vol. 42 (1), 20220283, 2023. (SCIE and I.F. 1.5)

DOI: https://doi.org/10.1515/htmp-2022-0283

28. Rahul Singh, Ravindra Pratap Singh, Yadaiah Nirsanametla, Brijesh Prasad, Anurag Shrivastava, Arun Pratap Srivastava and Amit Srivastava: Towards a Carbon Neutral Future: Integrating Renewable Sources and Energy Storage in Sustainable Energy Solutions, E3S Web of Conferences 511, 01007, 2024. (SCOPUS)

DOI: https://doi.org/10.1051/e3sconf/202451101007

29. Mahesh Bhong, Yadaiah Nirsanametla, Jitendra Gudainiyan, Rahul Kumar, Pravin P. Patil, Vijay Kumar Yadav and Akhil Sankhyan: Investigating the Synergistic Effects of Hybrid Nanofillers in Polymer Matrix Nanocomposites for Superior Mechanical and Electrical Performance, E3S Web of Conferences 511, 01026, 2024. (SCOPUS)

DOI: https://doi.org/10.1051/e3sconf/202451101026

30. Mahesh Bhong, Rahul Singh, Pradeep Kumar Singh, Yadaiah Nirsanametla, Rajesh Prasad Verma, Manish Saraswat and Amit Srivastava: Renewable Energy Integration for Urban Sustainability A Nanomaterial Perspective, E3S Web of Conferences 511, 01034, 2024. (SCOPUS)

DOI: https://doi.org/10.1051/e3sconf/202451101034

31. Yadaiah Nirsanametla, Kuldeep Sharma, Kanchan Yadav, ALN Rao, Amit Srivastava, Sanjeev Kumar Shah: Particle Filter-Based Localization Algorithm for Autonomous Robots in Smart Factories, Proceedings of 4^th International Conference on Innovative Practices in Technology and Management (ICIPTM), Publisher: IEEE, p. 1-6, 2024. (SCOPUS)

DOI: 10.1109/ICIPTM59628.2024.10563648

32. Yadaiah Nirsanametla, Kuldeep Sharma, Anurag Shrivastava, Arun Pratap Srivastava, Kanchan Yadav, Amit Srivastava: A Distributed Network Monitoring and Positioning System Based on TDOA, Proceedings of 4th International Conference on Innovative Practices in Technology and Management (ICIPTM), pp. 1-6, 2024. (SCOPUS)

DOI: 10.1109/ICIPTM59628.2024.10563517 

33. P William, Yadaiah Nirsanametla, Ahmed Al-Samalek, Ahmed Hussain, Neeraj Varshney, ALN Rao: AI and Machine Learning Techniques for Managing Complexity, Changes and Uncertainties in Manufacturing, Proceedings 4th International Conference on Innovative Practices in Technology and Management (ICIPTM), pp. 1-6, 2024. (SCOPUS)

DOI: 10.1109/ICIPTM59628.2024.10563755 

34. Varun Singhal, Lavish Kumar Singh, Devender Kumar, Yadaiah Nirsanametla: Exploring the Heat Treatment of Aluminium Matrix Composites: A Review, International Journal of Maritime Engineering, Vol. 1 (1), pp. 409-418, 2024. (I.F. 0.7)

DOI: https://doi.org/10.5750/ijme.v1i1.1372

35. Puspendu Chandra Chandra, Arpan Kumar Mondal, Yadaiah Nirsanametla, Ajay Kumar and Sohini Chowdhury: Influence of Tool Traverse Speed on Mechanical Properties and Fracture Morphology of Friction Stir Welded Pure Copper Butt Joints, Journal of Adhesion Science and Technology, 2024, Accepted. (I.F. 2.4)

DOI: https://doi.org/10.1080/01694243.2024.2411315

International Conference proceedings

1. S. Bag and N. Yadaiah: Possible role of surface active elements in weld pool modelling   of fusion welding process, International Conference on Computational Methods in Manufacturing (ICCMM 2011), IIT Guwahati, Guwahati, India, from 15^th to 16^th December 2011, pp.154-162.

2. N. Yadaiah, S. Bag, C. P. Paul and L. M. Kukreja: Fiber laser welding of austenitic stainless steel in protective atmosphere of argon, Recent Development in Welding and Joining Technologies, 7^th Asia Pacific International Institute of Welding International Congress, 2013, Singapore, from 8^th to 10^th July 2013, pp. 501-506.

3. N. Yadaiah, S. Bag, C. P. Paul and L. M. Kukreja: Efficient Finite Element Modeling of Fiber Laser Welding Process under Conduction Regime on 316 Stainless Steel Plate, International Conference on Advances in Mechanical Sciences 2014, Hyderabad, India, from 9^th to 11^th January 2014, pp. 24-31. (Awarded the best research paper)

4. N. Yadaiah, S. Bag, C. P. Paul and L. M. Kukreja: Prediction of weld induced distortions in fiber laser butt joint, IIW International Congress 2014 on "Advancement In Welding, Cutting And Surfacing Technologies For Improved Economy And Sustainable Environment" at New Delhi, India, from 9^th – 11^th April 2014, pp. 241-246.

5. N. Yadaiah and S. Bag: Egg-configuration heat source model in simulation of diode laser welding under conduction regime, IIW International Congress 2014 on "Advancement In Welding, Cutting And Surfacing Technologies For Improved Economy And Sustainable Environment" at New Delhi, India, from 9^th – 11^th April 2014, pp. 247-252.

6. N. Yadaiah, S. Bag, C. P. Paul and L. M. Kukreja: An experimental investigation on fiber laser welding at controlled inert gas atmosphere, 5^th International and 26th All India Manufacturing Technology, Design and Research Conference (AIMTDR 2014) at IIT Guwahati, Guwahati, India, from 12^th – 14^th December 2014, pp. 875-1-6.

7. G. Rinu, N. Yadaiah, Sohini Chowdhury, K. Pranjal and N. Teyi: Studies on numerical modeling of deep penetration laser welding process based on finite element method, 6^th International and 27^th All India Manufacturing Technology, Design and Research Conference (AIMTDR 2016) at College of Engineering Pune, Pune, India, from 16^th – 18^th December 2016, pp. 1681-1684.

8. Sohini Chowdhury, Yadaiah Nirsanametla and Manapuram Muralidhar: Studies on heat transfer analysis of Ti2AlNb electron beam welds using hybrid volumetric heat source, International Congress - 2017 of International Institute of Welding (IC IIW) held at Chennai, India, from 7^th – 9^th December 2017.

9. Benjamin Das, Sohini Chowdhury, Yadaiah Nirsanametla and Arpan Kumar Mondal: Effect of Process Variables in Submerged Arc Welding Process: Experimental and Numerical Investigations, International conference on Recent Advances in Mechanical Engineering (ICRAME-2020) held at Andhra University, Visakhapatnam, Andhra Pradesh, India from 26^th – 28^th February, 2020.

10. B. Kumar, S. Mujaheed Khan, N. Yadaiah, S. Bag and C. P. Paul: Monitoring of topological and metallurgical behaviour of laser welded thin sheet Ti-6Al-4V alloy at pulse and continuous mode of operation, International Conference on Experimental and Computational Methods in Manufacturing held at North Eastern Regional Institute of Science and Technology (NERIST), Nirjuli, India from 28^th – 29^th September, 2021.

11. Gollo Rinu, Sandeep Singh and N. Yadaiah: Experimental Investigations of Tool Tilt Angle on Properties of Friction Stir Welding Joint of AZ31B Magnesium Alloy, International Conference on Experimental and Computational Methods in Manufacturing (ICECMM 2021) held at North Eastern Regional Institute of Science and Technology (NERIST), Nirjuli, India from 28th – 29th September, 2021.

National Conference proceedings

1. Sohini Chowdhury, N. Yadaiah, M. Chandrasekaran, G. Rinu, P. Kalita and M. Muralidhar: Finite element based heat transfer analysis of laser assisted additive manufacturing process, "24th DAE BRNS National Laser Symposium (NLS-24), at RRCAT, Indore, from 2nd - 5th December 2015, Doc. ID: 6.40.

2. K. Pranjal, N. Yadaiah, G. Rinu, Sohini Chowdhury, S. M. Khan and M. Muralidhar: Thermal analysis of laser hybrid welding process and challenges in modeling, "24th DAE BRNS National Laser Symposium (NLS-24), at RRCAT, Indore, from 2nd - 5th December 2015, Doc ID: 8.10.

Poster Presentation

1. N. Yadaiah has presented a poster on “An Experimental Investigation and Numerical Modeling on Thermo-Mechanical Processing of GTA and Laser Welding Processes”  in the technical poster presentation organized by the department of mechanical engineering, IIT Guwahati, Guwahati, India during February 17-18, 2014.

2. TEQIP short term course on Advances in Welding and Joining Technologies organized by Department of Mechanical Engineering Indian Institute of Technology Guwahati Guwahati-781039, Assam, India, November, 2014.

The American Society of Mechanical Engineers - ASME

Additive Manufacturing Society of India– Life Member

Indian Laser Association – Life Member (LM 1134)

Indian Welding Society– Life Member (L01884)

The Institution of Engineers (India) – Member (M-1645433)

International Association of Engineers (IAENG) – Member

International Society for Research and Development (ISRD) – Member

ME 7033: Advanced Welding Technology (PG)

ME 7103: Computer Aided Design (PG)

ME 3202: Production Engineering II (UG)

ME 5202: Manufacturing Science (UG)

ME 6104: Non-conventional Machining (UG)

ME 4301: Strength of Materials and Machine Theory (UG)

ES 2201: Technical/Engineering Mechanics (UG)

ME 23103: Manufacturing Technology (UG)

Mr. Raunak Kr. Tripathi: Three-dimensional transient heat transfer analysis of direct energy position process using finite element method, 2023.

12. Mr. Padi Takha: Development of thermal model for simulation of friction stir welding process using finite element method, 2022.

11. Mr. Rajkumar Sanajaoba Singh: Experimental investigation of heat transfer rate of parallel and counter flow heat exchangers, 2021. (With Md. S. Mujaheed Khan)

10. Mr. Justin Hijam: Three-dimensional transient heat transfer analysis of selective laser melting process using finite element method, 2020.

9. Mr. Pakmi: Influence of process variables on metallographic properties during fiber laser welding process, 2019.

8. Mr. Sapam Nigthemba Singh: FE based three-dimensional transient heat transfer process model during a multi-layer laser based additive manufacturing, 2018.

7. Mr. Bikram Singh: Conduction based heat transfer analysis of dissimilar plate by gas metal arc welding process using FEM, 2018.

6. Mr. Subrata Kushari: Development of finite element based three dimensional transient heat transfer model during a single layer gas metal arc additive manufacturing process, 2018.

5. Mr. Benjamin Das: Influence of process parameters on weld bead dimensions during fusion welding: Experimental investigation and numerical modeling, 2017.

4. Ms. Rupshree Ozah: Experimental investigation and numerical modeling of submerged and plasma arc welding processes, 2017. (With Prof. M. Muralidhar)

3. Mr. Pranjal Kalita: Studies on experimental investigation and numerical modeling of fusion welding process using laser source, 2016.

2. Ms. Gollo Rinu: Finite Element Based Heat Transfer Analysis of Deep Penetration Laser Welding Process, 2016.

1. Ms. Sohini Chowdhury: Laser Based Additive Manufacturing: State-of-Art, Heat Transfer Analysis and Capabilities, 2016. (With Prof. M. Chandrasekaran)

1. Dr. Sohini Chowdhury: Experimental investigation and numerical modeling of laser and electron beam welding processes.

(With Prof. M. Muralidhar)

Completion Year: 2020

Current Position: Post-Doctoral Fellow, Department of Mechanical Engineering, Indian Institute of Technology (IIT) Madras, Chennai, India.

Expertise: Laser Cladding, Additive Manufacturing, Laser Based Manufacturing Processes, Computational Welding Mechanics, and macro-/micro-scale fusion welding processes.

2. Dr. Gollo Rinu: Experimental investigation and numerical modeling of similar and dissimilar friction stir welding process.

(With Prof. Sandeep Singh)

Completion Year: 2023

Current Position: Guest Faculty, Department of Mechanical Engineering, North Eastern Regional Institute of Science and Technology, Itanagar, India.

Expertise: Friction Stir Welding, Computational Welding Mechanics, and macro-/micro-scale fusion welding processes.

3. Dr. Benjamin Das: Experimental investigation and numerical modeling of macro and micro-plasma arc welding process.

Completion Year: 2024

Current Position: Junior Research Officer, Assam Down Town University, Guwahati, India.

Expertise: Plasma Arc Welding Process, Computational Welding Mechanics, and macro-/micro-scale fusion welding processes.

4. Mr. Puspendu Chandra Chandra: Friction stir welding, In Process, from July 2018 onwards.

5. Mr. Bhura Singh: Studies on arc additive manufacturing process, In Process, from July 2019 onwards.

Workshops/Faculty Development Programmes attended/participated

1. National Workshop on Tool Design and Its Applications, 2009, Andhra University, Visakhapatnam, India.

2. AICTE Sponsored Staff Development Programme On 'Finite Element Analysis and Its Applications', 2009, Gitam University, Visakhapatnam, India.

3. Faculty Development Programme, 2008, SVP Engineering College, Visakhapatnam, India.

4. TEQIP sponsored short term course on “Advances in Welding and Joining Technologies” from 29^th December 2014 to 31^st December 2014 organised by Department of Mechanical Engineering, IIT Guwahati, Guwahati.

5. TEQIP sponsored Faculty Development Programme on Recent Advancements of Electrical Machines and Industrial Applications at NERIST, Nirjuli, 2015.

6. TEQIP sponsored One Weeks Faculty Development Program on “Recent Advancements of Electrical Machines and Industrial Applications” from 4^th November 2015 to 8^th November 2015 organized by Electrical Engineering Department, North Eastern Regional Institute of Science and Technology, Nirjuli.

7. One weeks Online Faculty Development Program on “Exploring the Dimensions of Innovation, Incubation and Emerging Technologies to Embrace Post COVID Changes” from 8^th June 2020 to 12^th June 2020 organized by Finolex Academy of Management & Technology, Ratnagiri.

8. One weeks Online Faculty Development Program on “Emerging Trends in Refrigeration & Air Conditioning” from 1^st June 2020 to 6^th June 2020 organized by Department of Mechanical Engineering, Pimpri Chinchawad College of Engineering & Research in Association with The Indian Society of Heating, Refrigerating and Air Conditioning Engineers (ISHRAE) Pune Chapter and The Institution of Engineers (India) Pune Local Chapter.

9. National Seminar (Web) on “Ancient Indian Education System” organised by National Institute of Technical Teachers' Training and Research (NITTTR) Kolkata, West Bengal, India on 11^th and 12^th November, 2020.

10. ATAL sponsored one weeks Online Faculty Development Program on “Application of Artificial Intelligence and Machine Learning in Engineering Problems" from 14.09.2020 to 18.09.2020 organized by Department of Mechanical Engineering, North Eastern Regional Institute of Science and Technology, Nirjuli.

11. Two weeks Industrial Training Program on “AI & Machine Learning & Its Applications with Python” from 9^th January 2023 to 23^rd January 2023 organized by EduxLabs (Esoir Business Solution LLP) in Association with Mechanica IIT Madras.

Short-term courses attended

1. TEQIP short term course on Advances in Welding and Joining Technologies organized by Department of Mechanical Engineering Indian Institute of Technology Guwahati Guwahati-781039, Assam, India, November, 2014.

2. Two weeks Short term/In-house training programme on Induction Training organized by National Institute of Technical Teacher’s Training and Research with North Eastern Regional Institute of Science and Technology from 11.09.2015 to 20.09.2015.

3. Short term course on Optical Fiber to Fiber Lasers organized by Raja Ramanna Centre for Advance Technology, Indore from 30.11.2015 to 01.12.2015.

4. One week Short term/In-house training programme on Leadership and Team Building in Academia by National Institute of Technical Teacher’s Training and Research with North Eastern Regional Institute of Science and Technology from 30.10.2017 to 03.11.2017.

International Conference/Workshop Organized

1. Organized a One Week Online International Workshop on “Advancements and Future Research Trends in Laser based Manufacturing Processes (AFRLMP-2020)” from 1^st - 5^th September 2020 as Organizing Secretary.

2. Organized an International conference on “Experimental and Computational Methods in Manufacturing (ICECMM 2021)” from September 28-29, 2021 as Organizing Secretary