Additive manufacturing, Topology and Process parameter optimization, Lean manufacturing, Design of Experiments, Quality and Reliability engineering
18
Scopus Publications
286
Scholar Citations
8
Scholar h-index
8
Scholar i10-index
Scopus Publications
Investigation on mechanized pulsed GMAW process for sour-service pipeline welding Rajesh Goswami, Jaykumar Vora, Basab Bhattacharya, Rakesh Chaudhari, Jayaram Nagendra, Prashant Kumar Gangwar, Din Bandhu, Akkireddy Anitha Lakshmi High Temperature Materials and Processes, 2026 This study investigates the applicability of mechanized Pulsed Gas Metal Arc Welding (m-PGMAW) for the girth welding of API 5L X65 subsea pipelines intended for sour service. Welds were fabricated using ER70S-6 filler wire and augmented process parameters, yielding defect-free joints with a controlled heat-affected zone (HAZ). Hardness mapping confirmed a maximum of 210 HV10, well below the industry standard threshold (250 HV10) for sulfide stress cracking resistance. Tensile testing demonstrated strength matching between weld and base metal, with improved properties at sub-zero temperature (−11 °C). Fatigue crack growth rate (FCGR) tests revealed significantly accelerated crack propagation in a sour environment compared to air, attributed to hydrogen embrittlement. The findings provide critical experimental data for Engineering Critical Assessments (ECA), ensuring conservative flaw acceptance criteria and long-term structural integrity of subsea S-lay pipelines operating in aggressive sour environments, and it validates the robustness of the developed m-PGMAW procedure.
AI-powered predictive framework for crack detection in steel–copper laser welding J. Nagendra, K. S. Prashanth, Kavadiki Veerabhadrappa, K. D. Bopanna, M. Vinutha, E. Naresh, Din Bandhu Scientific Reports, 2025 Laser welding of dissimilar materials, such as steel and copper, is highly susceptible to crack formation, which compromises joint integrity and service life. Traditional inspection techniques are slow, labor-intensive, and error-prone, underscoring the need for intelligent defect-prediction systems. This study utilizes a publicly available dataset of 360 weld cross-sections, generated using a definitive screening design (DSD) that encompasses six key process parameters: laser power, welding speed, angular orientation, focal position, gas flow rate, and sheet thickness. Multiple machine learning classifiers, including Decision Trees, Random Forests, Gradient Boosting, Support Vector Machines, and Neural Networks, were systematically evaluated using Orange data mining software with imbalance handling strategies. The novelty of this study lies in the application of the Orange data mining tool to address data imbalance in welding defect prediction and its optimization through a neural network framework, thereby enhancing both model reliability and predictive performance. Among them, a Multilayer Perceptron (MLP) neural network achieved the best performance, attaining 94.9% accuracy, 86.3% sensitivity, and 96.8% specificity, with an AUC of 0.961. The results establish neural networks as a robust and scalable tool for defect classification in steel-copper welding, offering a practical pathway for intelligent process monitoring and predictive quality assurance in Industry 4.0 manufacturing.
Investigating the Corrosion Behaviour and Electrochemical Properties of Intermetallic Matrix Composites J. Nagendra, Singavarapu Sujani, Manoj Kumar Vishkarma, Savita Bhati, Fouad A. Al-Saady, Lovi Raj Gupta E3s Web of Conferences, 2023 In the realm of advanced materials, intermetallic matrix composites (IMC) have garnered significant attention due to their potential for high-temperature applications and superior mechanical properties. This research delves into the corrosion behaviour and electrochemical characteristics of selected IMCs to elucidate their performance in aggressive environments. Employing potentiodynamic polarization tests and electrochemical impedance spectroscopy (EIS) , the study provides a comprehensive analysis of the corrosion kinetics and mechanisms inherent to these materials. The results indicate that the microstructural features, including the distribution of secondary phases and the nature of the matrix, play a pivotal role in determining the corrosion resistance. Furthermore, the presence of certain alloying elements was found to impart passivation capabilities, thereby enhancing the overall corrosion resistance. The EIS data revealed distinct time constants, suggesting multiple electrochemical processes at the interface. This study not only advances our understanding of the corrosion behaviour of IMCs but also underscores the importance of microstructural engineering in tailoring their electrochemical properties. The insights garnered hold profound implications for the design and application of IMCs in industries where corrosion resistance is paramount.
Kenaf Fiber and Hemp Fiber Multi-Walled Carbon Nanotube Filler-Reinforced Epoxy-Based Hybrid Composites for Biomedical Applications: Morphological and Mechanical Characterization Praveena Bindiganavile Anand, Santhosh Nagaraja, Nagendra Jayaram, Shashank Paidi Sreenivasa, Naif Almakayeel, T. M. Yunus Khan, Raman Kumar, Raman Kumar, Muhammad Imam Ammarullah Journal of Composites Science, 2023 This study used a hybrid combination of kenaf and hemp fibers and the multi-walled carbon nanotube (MWCNT) reinforcements in the matrix phase to synthesize the composites. A kenaf/hemp fiber blend with MWCNTs in epoxy was used for the specific concentration. The procedure used three composite materials chosen from pilot trials. The ratio of MWCNT filler particles was altered up to the agglomeration limit based on initial trials. Two specimens (2 and 3) were supplemented with MWCNTs in a concentration range of 0.5 wt. % to 1 wt. %, with the fiber concentration being maintained in equilibrium with the epoxy resin, all of the materials were tested under the same conditions. The hybrid nanocomposite was characterized for its morphological and mechanical properties; the tensile properties were higher for 1% MWCNTs concentration (specimen 2), while the flexural properties were higher for 0.5% MWCNTs, with values of 43.24 MPa and 55.63 MPa, correspondingly. Once the MWCNT concentration was increased to 1 wt. %, the maximum impact strength was achieved (specimen 3). In the limits of the Shore-D scale, the kenaf fiber and hemp fiber matrix composite (specimen 1) gained a hardness index of 84. Scanning electron microscopy was carried out to analyze the morphological features of the fractured samples and to assess the adhesion between the fiber, matrix, and surface. Among the various fillers tested, the kenaf fiber/hemp/MWCNT composite (specimen 3) demonstrated superior binding and reduced the incidence of fiber pull-out, breakage, and voids. In addition to the comparative analysis, the addition of 0.5 wt. % MWCNTs resulted in better mechanical properties compared to the other two combinations.
Comparison of tribological behavior of nylon aramid polymer composite fabricated by fused deposition modeling and injection molding process International Journal of Mechanical Engineering and Technology, 2018
RECENT SCHOLAR PUBLICATIONS
Influence of cryogenic treatment on the microstructure and mechanical behaviour of LM13 alloy aluminium matrix composites reinforced with nano-zirconium dioxide N Raghu, V Chandan, NG Siddeshkumar, R Siva Madhulatha, ... Canadian Metallurgical Quarterly, 1-14 , 2026 2026
Investigation on mechanized pulsed GMAW process for sour-service pipeline welding R Goswami, J Vora, B Bhattacharya, R Chaudhari, J Nagendra, ... High Temperature Materials and Processes 45 (1), 20250121 , 2026 2026
AI-powered predictive framework for crack detection in steel–copper laser welding J Nagendra, KS Prashanth, K Veerabhadrappa, KD Bopanna, M Vinutha, ... Scientific Reports , 2025 2025 Citations: 1
Sustainable shape formation of multifunctional carbon fiber-reinforced polymer composites: A study on recent advancements. G J Nagendra, Yadav, R Srinivas, N Gupta, D Bandhu, A Fande, ... Mechanics of Advanced Materials & Structures 31 (26) , 2024 2024 Citations: 52
Evaluation of surface roughness of novel Al-based MMCs using Box-Cox transformation J Nagendra, MK Srinath, G Shaikshavali, CL Kumar, D Bandhu, ... International Journal on Interactive Design and Manufacturing (IJIDeM) 18 (5 … , 2024 2024 Citations: 17
Salt water corrosion behaviour of composite coated Al-6061 developed through HVOF MK Srinath, J Nagendra, M Ravikumar, KD Bopanna, SS Swamy, ... Journal of The Institution of Engineers (India): Series C 104 (3), 587-592 , 2023 2023 Citations: 5
RETRACTED: Investigating the Corrosion Behaviour and Electrochemical Properties of Intermetallic Matrix Composites J Nagendra, S Sujani, MK Vishkarma, S Bhati, FA Al-Saady, LR Gupta E3S Web of Conferences 430, 01120 , 2023 2023 Citations: 2
Process parameter optimisation of fused deposition modelling for augmenting the strength of nylon-aramid PMC’s J Nagendra, MK Srinath, KD Bopanna, SS Swamy, M Ravikumar Materials Today: Proceedings 80, 1352-1363 , 2023 2023 Citations: 5
Design and optimisation of heat sinks to enhance the thermal conductivity through simulations KD Bopanna, MK Srinath, M Ravikumar, S Swami, J Nagendra Materials Today: Proceedings 80, 564-569 , 2023 2023 Citations: 3
Corrosion performance characteristics of heat treated Al-6082 with nano-SiC reinforcements MK Srinath, J Nagendra, KD Bopanna, SS Swamy, M Ravikumar Materials Letters 322, 132512 , 2022 2022 Citations: 8
Post-processing parameter optimization to enhance the surface finish of HVOF-developed coatings MK Srinath, J Nagendra Multiscale and Multidisciplinary Modeling, Experiments and Design 5 (3), 255-267 , 2022 2022 Citations: 10
Optimization of process parameters and evaluation of surface roughness for 3D printed nylon-aramid composite J Nagendra, MK Srinath, S Sujeeth, KS Naresh, MSG Prasad Materials Today: Proceedings 44, 674-682 , 2021 2021 Citations: 59
FDM process parameter optimization by Taguchi technique for augmenting the mechanical properties of nylon–aramid composite used as filament material J Nagendra, MSG Prasad Journal of The Institution of Engineers (India): Series C 101 (2), 313-322 , 2020 2020 Citations: 71
Nylon-aramid polymer composite as sliding liner for lube-less sliding bearing by fused deposition modeling J Nagendra, MSG Prasad, S Shashank, N Vijay, SM Ali, V Suresh AIP Conference Proceedings 2057 (1), 020047 , 2019 2019 Citations: 8
DESIGN OF BLOW MOULD DIE FOR POLYPROPYLENE BOTTLE WITH MULTIPLE OPENINGS N J International Journal of Technical Innovation in Modern Engineering … , 2018 2018
Comparison of Tribological behavior of nylon aramid polymer composite fabricated by Fused deposition modelling and injection molding process J Nagendra, MSG Prasad, S Shashank, SM Ali International Journal of Mechanical Engineering and Technology 9 (13), 720-728 , 2018 2018 Citations: 10
Tribological characterization of fdm component using aramid fiber reinforced with nylon J Nagendra International Journal of Research in Aeronautical and Mechanical Engineering … , 2016 2016 Citations: 4
Enhancement of the poor mechanical properties by composite rapid prototyping N J, MSG Prasad International Conference on ‘Additive Manufacturing Technology-AM 2013’ , 2013 2013
MOST CITED SCHOLAR PUBLICATIONS
FDM process parameter optimization by Taguchi technique for augmenting the mechanical properties of nylon–aramid composite used as filament material J Nagendra, MSG Prasad Journal of The Institution of Engineers (India): Series C 101 (2), 313-322 , 2020 2020 Citations: 71
Optimization of process parameters and evaluation of surface roughness for 3D printed nylon-aramid composite J Nagendra, MK Srinath, S Sujeeth, KS Naresh, MSG Prasad Materials Today: Proceedings 44, 674-682 , 2021 2021 Citations: 59
Sustainable shape formation of multifunctional carbon fiber-reinforced polymer composites: A study on recent advancements. G J Nagendra, Yadav, R Srinivas, N Gupta, D Bandhu, A Fande, ... Mechanics of Advanced Materials & Structures 31 (26) , 2024 2024 Citations: 52
Evaluation of surface roughness of novel Al-based MMCs using Box-Cox transformation J Nagendra, MK Srinath, G Shaikshavali, CL Kumar, D Bandhu, ... International Journal on Interactive Design and Manufacturing (IJIDeM) 18 (5 … , 2024 2024 Citations: 17
Post-processing parameter optimization to enhance the surface finish of HVOF-developed coatings MK Srinath, J Nagendra Multiscale and Multidisciplinary Modeling, Experiments and Design 5 (3), 255-267 , 2022 2022 Citations: 10
Comparison of Tribological behavior of nylon aramid polymer composite fabricated by Fused deposition modelling and injection molding process J Nagendra, MSG Prasad, S Shashank, SM Ali International Journal of Mechanical Engineering and Technology 9 (13), 720-728 , 2018 2018 Citations: 10
Corrosion performance characteristics of heat treated Al-6082 with nano-SiC reinforcements MK Srinath, J Nagendra, KD Bopanna, SS Swamy, M Ravikumar Materials Letters 322, 132512 , 2022 2022 Citations: 8
Nylon-aramid polymer composite as sliding liner for lube-less sliding bearing by fused deposition modeling J Nagendra, MSG Prasad, S Shashank, N Vijay, SM Ali, V Suresh AIP Conference Proceedings 2057 (1), 020047 , 2019 2019 Citations: 8
Salt water corrosion behaviour of composite coated Al-6061 developed through HVOF MK Srinath, J Nagendra, M Ravikumar, KD Bopanna, SS Swamy, ... Journal of The Institution of Engineers (India): Series C 104 (3), 587-592 , 2023 2023 Citations: 5
Process parameter optimisation of fused deposition modelling for augmenting the strength of nylon-aramid PMC’s J Nagendra, MK Srinath, KD Bopanna, SS Swamy, M Ravikumar Materials Today: Proceedings 80, 1352-1363 , 2023 2023 Citations: 5
Tribological characterization of fdm component using aramid fiber reinforced with nylon J Nagendra International Journal of Research in Aeronautical and Mechanical Engineering … , 2016 2016 Citations: 4
Design and optimisation of heat sinks to enhance the thermal conductivity through simulations KD Bopanna, MK Srinath, M Ravikumar, S Swami, J Nagendra Materials Today: Proceedings 80, 564-569 , 2023 2023 Citations: 3
RETRACTED: Investigating the Corrosion Behaviour and Electrochemical Properties of Intermetallic Matrix Composites J Nagendra, S Sujani, MK Vishkarma, S Bhati, FA Al-Saady, LR Gupta E3S Web of Conferences 430, 01120 , 2023 2023 Citations: 2
AI-powered predictive framework for crack detection in steel–copper laser welding J Nagendra, KS Prashanth, K Veerabhadrappa, KD Bopanna, M Vinutha, ... Scientific Reports , 2025 2025 Citations: 1
Influence of cryogenic treatment on the microstructure and mechanical behaviour of LM13 alloy aluminium matrix composites reinforced with nano-zirconium dioxide N Raghu, V Chandan, NG Siddeshkumar, R Siva Madhulatha, ... Canadian Metallurgical Quarterly, 1-14 , 2026 2026
Investigation on mechanized pulsed GMAW process for sour-service pipeline welding R Goswami, J Vora, B Bhattacharya, R Chaudhari, J Nagendra, ... High Temperature Materials and Processes 45 (1), 20250121 , 2026 2026
DESIGN OF BLOW MOULD DIE FOR POLYPROPYLENE BOTTLE WITH MULTIPLE OPENINGS N J International Journal of Technical Innovation in Modern Engineering … , 2018 2018
Enhancement of the poor mechanical properties by composite rapid prototyping N J, MSG Prasad International Conference on ‘Additive Manufacturing Technology-AM 2013’ , 2013 2013
