Dr Raju Kumar Thakur

Scopus Publications

An experimental study on drilling of epoxy/glass composite using abrasive water jet
Raju Kumar Thakur, Kalyan Kumar Singh, Jonathan S. Joseph, Radheshyam Gajghat, R. Jyothu Naik, Yashraj N. Chopkar, Nandkishor M. Sawai, Gajanan G. Waghmare, Vasim A. Shaikh, Sachin G. Ghalme
Aip Conference Proceedings, 2026
Experimental analysis on the influence of graphene nanoplatelets in CFRP composite to explore the hole quality during drilling
Raju Kumar Thakur, Kalyan Kumar Singh, Mahesh, Prashant Rawat, Nandkishor Sawai
Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science, 2025
Fiber-reinforced polymer composites have been steadily growing over the last couple of decades due to their durability and sustainability. This study aims to investigate the effects of different weight percentage (wt%) of graphene nanoplatelets (GNPs), spindle speed (SS), and feed rate (FR) on damage resulting from drilling of carbon fiber reinforced polymer (CFRP) composites. The effect of graphene in wt% (0.125, 0.25, and 0.375) on properties of CFRP was explored. The outcome of the present investigation revealed enhancement in the mechanical and machining qualities of the CFRP laminates by incorporating graphene up to 0.25 wt% in epoxy. Graphene (0.25 wt%)-embedded CFRP composite was shown to have a minimum surface roughness (SR), torque, thrust force (TF), entry, and exit delamination factor (DF) of (1.4298 μm), (1115.08 N), (2.8149 Nm), (1.1018), and (1.1268), respectively. The FR was found to be the most influential parameter for all the machining responses while graphene was the second most important parameter for SR, entry DF and exit DF, according to ANOVA analysis. The composites’ machining performances were optimized by increasing SS and decreasing FR. Lastly, the morphology of the machined surfaces was studied using the FESEM analysis.
Investigation of Mechanical Properties of Groundnut-Based Composite Using the Entropy-Weighted TOPSIS Approach
Sachin G. Ghalme, Ibrahim Momohjimoh, Yogeshkumar Falak, Raju Kumar Thakur
International Journal of Automotive and Mechanical Engineering, 2025
This article presents an experimental study related to groundnut shell fiber-reinforced polymer composite. The powdered groundnut shell (GNS) at different concentrations (5, 10, 15, 20, 25, 30, and 35 wt%) was utilized as reinforcement with epoxy to prepare the composite. The fabricated NaOH-treated GNS fiber/epoxy polymer composite samples underwent testing in accordance with ASTM standards to evaluate mechanical properties such as impact energy, tensile, and flexural. Maximum tensile strength (15.7 N/mm2) and impact energy (28.86 J/mm2) were achieved on 15 wt% GNS/epoxy composites, while maximum flexural strength (40.18 N/mm2) was achieved on 30 wt% GNS/epoxy composite. Morphological analysis of the fabricated NaOH-treated GNS fiber/epoxy polymer composites was studied by applying SEM. The TOPSIS technique integrated with entropy weight was implemented to obtain the optimal weight proportion of GNS reinforcement in a polymer matrix to maximize tensile, flexural, and impact strength simultaneously. The entropy weight technique was employed to obtain weights for response variables. The TOPSIS method suggests 30 wt% of GNS reinforcement as optimal for maximizing desired mechanical properties. The results for optimal level reinforcement obtained through confirmatory experiments were compared to evaluate the effectiveness of the TOPSIS method.
An investigation on bearing strength behaviour of pinned joints in graphene-embedded carbon/epoxy composites
Raju Kumar Thakur, Prasad P. Kulkarni, Ujjwal V. Padole, Jonathan S. Joseph, Atul Pise, Radheshyam Gajghat, Yashraj N. Chopkar, Gajanan G. Waghmare, Nandkishor M. Sawai
Journal of Physics Conference Series, 2025
Fiber-reinforced polymer composites have been steadily growing over the last couple of decades due to their durability and sustainability. Carbon fibre/epoxy (CFRP) is a polymer-based composite material with adaptable design characteristics that increases stiffness and strength, provided by carbon fiber reinforcement. In this work, tensile pin bearing loading is applied to carbon fibre/epoxy embedded with graphene nanoplatelet (GNP) composite laminates. Carbon fibre/epoxy laminates have GNP weight percentage of 0.25. The study’s focus on how the inclusion of GNP affects hole quality and pin bearing strength. The impact of traditional and abrasive water jet (AWJ) drilling on bearing strength and hole quality is highlighted. According to experimental findings, bearing strength of CFRP laminates was impacted by the drilled hole’s surface quality. Compared to traditional drilling, AWJ machining produced a hole with a higher surface quality. The pin bearing strength of AWJ drilled hole was higher than that of a normally drilled hole. The bearing strength of CFRP composites was enhanced by the addition of GNP.
Sound absorption characteristics of balsa cored asymmetric sandwich composite material
Prahlad Kumar, K. Priya Ajit, Nandan Kumar Jha, Raju Kumar Thakur, Vikram
Aip Conference Proceedings, 2024
An investigation on end milling behaviour of glass fiber reinforced polymer composites
Pratap Shivaji Garudkar, Raju Kumar Thakur, Santosh Haribhau Pawar, Monali Jayram Kshirsagar, Vishal Vasant Shinde, Kalyan Kumar Singh
Aip Conference Proceedings, 2024
The effects of small fibre misalignment on the mechanical properties of GFRP laminates: An experimental assessment
Suleiman Lawal Daura, Shubham, Kalyan Kumar Singh, Md. Tauhid Alam Ansari, Raju Kumar Thakur, Anand Gaurav, R. Sankar
Aip Conference Proceedings, 2024
Experimental investigation on drilling performance analysis of carbon/epoxy composite
Abhishek Pratap Singh, Pratap Shivaji Garudkar, Raju Kumar Thakur, Nimbalkar Shripad Ramchandra, Shyam P. Mogal, Kalyan Kumar Singh, Sachin G. Ghalme
Aip Conference Proceedings, 2024
Optimization of drilling parameters using multi-objective grey relational analysis technique
Atul Ashok Minde, Shraddha Bhausaheb Navle, Pooja P. Thakare, Bhimraj P. Deore, Shyam P. Mogal, Raju Kumar Thakur, Anand Gaurav
Aip Conference Proceedings, 2024
Evaluation of graphene nanoplatelets addition and machining methods on the hole quality and bearing strength of glass and carbon fibre reinforced epoxy laminates
Raju Kumar Thakur, Kalyan Kumar Singh, Mahesh, Prashant Rawat
Journal of Manufacturing Processes, 2024
Evaluation of drilling characteristics to explore the effect of graphene nanoplatelets on glass fiber reinforced polymer composite
Raju Kumar Thakur, Kalyan Kumar Singh
Measurement Journal of the International Measurement Confederation, 2023
Evaluation of hole quality to explore the influence of graphene nanoplatelets embedded in epoxy/carbon composite during abrasive water jet drilling
Raju Kumar Thakur, Kalyan Kumar Singh
Journal of Manufacturing Processes, 2023
Influence of fabric areal density in woven GFRP laminate on abrasive water jet drilling responses
Raju Kumar Thakur, Kalyan Kumar Singh, Md. Touhid Alam Ansari
Materials and Manufacturing Processes, 2023
An investigation into the impact of graphene nanoplatelets reinforced with glass fiber reinforced polymer composite on the hole quality using abrasive water jet drilling
Raju Kumar Thakur, Kalyan Kumar Singh
Polymer Composites, 2022
Impact of MWCNT in CFRP composite during end milling process
Raju Kumar Thakur, Kalyan Kumar Singh
Materials and Manufacturing Processes, 2022
Experimental analysis on carbon nanotube embedded GFRP composites during AWJM
Kalyan Kumar Singh, Raju Kumar Thakur
Materials and Manufacturing Processes, 2022
Influence of nanoclay filler on mechanical properties of CFRP composites
Shri Narayan Agnihotri, Raju Kumar Thakur, Kalyan Kumar Singh
Materials Today Proceedings, 2022
Assessment of mechanical properties of nanoclay embedded GFRP composites
Shri Narayan Agnihotri, Raju Kumar Thakur, K.K. Singh
Materials Today Proceedings, 2022
Evaluation of advanced machining processes performance on filler-loaded polymeric composites: a state-of-the-art review
R. K. Thakur, K. K. Singh
Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2021
Influence of fillers on polymeric composite during conventional machining processes: a review
R. K. Thakur, K. K. Singh
Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2021
Impact of nanoclay filler reinforcement on CFRP composite performance during abrasive water jet machining
R. K. Thakur, K. K. Singh, Janakarajan Ramkumar
Materials and Manufacturing Processes, 2021
Experimental investigation and optimization of abrasive water jet machining parameter on multi-walled carbon nanotube doped epoxy/carbon laminate
R.K. Thakur, K.K. Singh
Measurement Journal of the International Measurement Confederation, 2020
Abrasive waterjet machining of fiber-reinforced composites: a state-of-the-art review
R. K. Thakur, K. K. Singh
Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2020
Delamination analysis and hole quality of hybrid FRP composite using abrasive water jet machining
R.K. Thakur, K.K. Singh, J. Ramkumar
Materials Today Proceedings, 2020
Investigation of milling characteristics in graphene-embedded epoxy/carbon fibre reinforced composite
R.K. Thakur, K.K. Singh, Karunesh Kumar
Materials Today Proceedings, 2020
Experimental investigation of abrasive waterjet hole cutting on hybrid carbon/glass composite
R.K. Thakur, K.K. Singh, J. Ramkumar
Materials Today Proceedings, 2020
Optimization of surface roughness and delamination factor in end milling of graphene modified GFRP using response surface methodology
R.K. Thakur, Dheeraj Sharma, K.K. Singh
Materials Today Proceedings, 2019
Modeling and optimization of surface roughness in end milling of graphene/epoxy nanocomposite
R.K. Thakur, K.K. Singh, Dheeraj Sharma
Materials Today Proceedings, 2019
Parametric Optimization of Surface Roughness and Delamination Damage in End Milling Operation of GFRP Laminate Modified with MWCNT
Dheeraj Sharma, K.K. Singh, R.K. Thakur
Materials Today Proceedings, 2019

Dr Raju Kumar Thakur

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Scopus Publications