Prakash Kumar

Verified email at gmail.com

Assistant Professor, Department Production Engineering
BIT Mesra



                                         

https://researchid.co/pkiitr87

RESEARCH INTERESTS

Vibration and control
Nonlinear dynamics
Structural dynamics
Modelling of human-induced force
Casting and Welding.

20

Scopus Publications

168

Scholar Citations

8

Scholar h-index

7

Scholar i10-index

Scopus Publications

  • A Study on Residual Stress Distribution in Welded Joint of P91 and SS304H Steel Plate
    Lecture Notes in Mechanical Engineering, ISSN: 21954356, eISSN: 21954364, Pages: 1-10, Published: 2022

  • Characterization of the soft zone in dissimilar welds joint of 2.25Cr-1Mo and lean duplex LDX2101 steel
    C. Pandey, J.G. Thakare, P.K. Taraphdar, P. Kumar, A. Gupta, and S. Sirohi

    Fusion Engineering and Design, ISSN: 09203796, Volume: 163, Published: February 2021 Elsevier BV
    Abstract The dissimilar welds joint of 2.25Cr-1Mo steel and lean duplex LDX2101 steel was prepared using the Gas Tungsten Arc Welding (GTAW) process and employing the Inconel 617 filler. The microstructural stability of the dissimilar welds joint (DWJ) was studied using the optical microscope and field emission scanning electron microscope (FESEM) for as-welded (AW) and post-weld heat treatment (PWHT) condition. The PWHT was employed at 760 °C (PW 1) and 810 °C (PW 2) for 2 h of duration. The application of the heat-treatment resulted in the formation of the soft zone at the interface of weld metal and HAZ in 2.25 Cr-1Mo side, i.e., low Cr side. The mechanical behavior of the DWJs was also studied for AW and PWHT condition. A measurable change in the width and hardness of the soft and hard zones was measured with an increase in PWHT temperature. For weld metal, the minimum average hardness was measured 237 HV in AW and a maximum of 248 HV for PW 2. In the AW condition, the average CIT of the weld metal was measured 46.5 ± 3.5 J, which meets the minimum recommended value as per EN 1557:1999 standards. The PWHT showed a drastic reduction in CIT and a minimum of 34 ± 3 J was measured for PW 2. The CIT of the 2.25Cr-1Mo HAZ (notch adjacent to fusion boundary includes the soft ferrite region) was measured 45 ± 5 J in AW and get increased drastically after the PWHT and maximum was measured for PW 2 (86 ± 5 J).

  • Analysis and optimization of geometry of 3D printer part cooling fan duct
    Mantu Choudhary, Sumanta Mukherjee, and Prakash Kumar

    Materials Today: Proceedings, eISSN: 22147853, Pages: 2482-2487, Published: 2021 Elsevier BV

  • Evaluation of mechanical and tribological characteristics of hot-pressed self-lubricating CuO/MgO/ZTA ceramic composites
    Md Sajid Hussain, Sourav Goswami, Kunal Ghosh, Prakash Kumar, and Nilrudra Mandal

    Materials Today: Proceedings, eISSN: 22147853, Pages: 2522-2527, Published: 2021 Elsevier BV

  • Role of Ni-based filler on charpy impact toughness of the P91 welds joint
    S. Sirohi, P. Kumar, A. Gupta, S. Kumar and C. Pandey

    Materials Today: Proceedings, eISSN: 22147853, Pages: 1043-1049, Published: 2021

  • Study of mechanical properties of Al2014-B<inf>4</inf>C-Gr hybrid nano composite
    Nitish Kaushik, Prakash Kumar, Joyjeet Ghose, and Sanjay K Jha

    Materials Today: Proceedings, eISSN: 22147853, Pages: 5573-5576, Published: 2020 Elsevier BV
    Abstract Aluminium hybrid metal matrix nano composite (AHMNC) material has all the advantages of conventional metal matrix nano composite with multifunctional properties because of the hybrid reinforcement. As a result, these materials offer a unique combination of properties that are not possible to achieve in conventional materials. The present study deals with the fabrication of aluminium hybrid nano composites by reinforcing Al2014 with nano sized B4C and graphite, processed through stir casting route followed by ultrasonic and squeeze casting. The addition of B4C improves the hardness, whereas Gr particles improve wear resistance in the composite. These combinations of the reinforcements are chosen for application under high abrasive conditions. Ultrasonic agitation has been done to uniformly distribute the reinforcement, whereas squeeze casting is done to reduce the porosity of the cast. The cast composite has been cut to prepare specimens for hardness, tensile strength, and microstructure as per the ASTM standards. The mechanical properties of the composite were evaluated and compared to the conventional. The microstructure of the composites was studied using optical microscopy to investigate the proper distribution of reinforcement and microstructure in the AHMNCs. The result indicates a significant improvement in the hardness. Further, the microstructure studies reveal that the reinforcement was fairly uniformly distributed over the matrix material.

  • Analysis of surface integrity and dimensional accuracy in EDM of P91 steels
    Prakash Kumar, Shailesh Dewangan, and Chandan Pandey

    Materials Today: Proceedings, eISSN: 22147853, Pages: 5378-5383, Published: 2020 Elsevier BV

  • Materials for energy harvesting with a nonlinear energy sink: A literature review
    Prakash Kumar, Anil Kumar, Chandan Pandey, Shailesh Dewangan, and Sanjay K. Jha

    Materials Today: Proceedings, eISSN: 22147853, Pages: 5632-5637, Published: 2020 Elsevier BV
    Abstract A Nonlinear Energy Sink (NES) having essential nonlinear stiffness, it is nonlinearly attached to a primary system. In contrast to Tuned Mass Damper, the NES could be capable over a wider frequency range and only require a small additional mass. NES have good potential for vibration mitigation and energy harvesting. One of the most common energy sources in an environment is ambient vibration. Some micro electro-mechanical system with magnetostrictive or piezoelectric materials is used to convert ambient vibration into electrical energy. That can be stored and used to power other devices such as wireless sensors, health monitoring sensors or replacing small batteries that have a finite lifespan or would require difficult and expensive maintenance. This study focuses on materials for energy harvesting with NES. Piezoelectric materials have a good capability to convert the mechanical vibration energy into electrical energy and vice versa; therefore, they are more suitable for energy harvesting with NES. A state of the art review of the piezoelectric material frequently used in NES coupled energy harvester with their relative merit is presented.

  • Study on effect of double austenitization treatment on fracture morphology tensile tested nuclear grade P92 steel
    Chandan Pandey, M.M. Mahapatra, Pradeep Kumar, Prakash Kumar, N. Saini, J.G. Thakare, and S. Kumar

    Engineering Failure Analysis, ISSN: 13506307, Pages: 158-167, Published: February 2019 Elsevier BV

  • Serviceability analysis of a footbridge subjected to pedestrian walking
    Prakash Kumar, Anoop Kumar Godara, and Anil Kumar

    Lecture Notes in Mechanical Engineering, ISSN: 21954356, eISSN: 21954364, Pages: 405-413, Published: 2019 Springer Singapore

  • Optimization of quality and productivity of wire EDM by using L<inf>9</inf> orthogonal array
    Shailesh Kumar Dewangan, Prakash Kumar, and Sanjay Kumar Jha

    Lecture Notes in Mechanical Engineering, ISSN: 21954356, eISSN: 21954364, Pages: 93-100, Published: 2019 Springer Singapore

  • Grain refinement of P91 steel using double austenitization treatment
    Chandan Pandey, M. M. Mahapatra, Pradeep Kumar, N. Saini, J. G. Thakre, and Prakash Kumar

    Materials Performance and Characterization, eISSN: 21653992, Pages: 445-455, Published: 24 September 2018 ASTM International

  • Modeling of Longitudinal Human Walking Force Using Self-Sustained Oscillator
    Prakash Kumar, Anil Kumar, and Vitomir Racic

    International Journal of Structural Stability and Dynamics, ISSN: 02194554, eISSN: 17936764, Published: 1 June 2018 World Scientific Pub Co Pte Lt
    The paper proposes a self-sustained single-degree-of-freedom oscillator to accurately generate the longitudinal contact force between a pedestrian’s feet and the supporting flat rigid surface. The model is motivated from the self-sustained nature of pedestrian walking, i.e. a pedestrian produces the required internal energy to maintain a repetitive body motion. It is derived by adding two nonlinear terms to the conventional Rayleigh oscillator to yield odd as well as even harmonics, as observed in experimentally recorded longitudinal force data. For the dynamic analysis of the oscillator, two methods are adopted: the energy balance method and the Lindstedt–Poincare perturbation technique. Moreover, the least-squares identification procedure is used to identify values of the oscillator parameters from the force records of 12 different pedestrians walking on an instrumented treadmill at 10 walking speeds. The results generated by the proposed oscillator agree well with the experimental data.

  • A Nonlinear Oscillator Model to Generate Lateral Walking Force on a Rigid Flat Surface
    Prakash Kumar, Anil Kumar, and Silvano Erlicher

    International Journal of Structural Stability and Dynamics, ISSN: 02194554, eISSN: 17936764, Published: 1 February 2018 World Scientific Pub Co Pte Lt
    This study proposes a single degree of freedom nonlinear oscillator to model the lateral movement of the body center of mass of a pedestrian walking on a flat rigid surface. Experimentally recorded ground reaction force of a dozen of pedestrians in the lateral direction is used to develop the model. In detail, the hardening and softening effects are observed in the stiffness curve as well as higher odd harmonics are present in the frequency spectrum of the lateral force signals. The proposed oscillator is a modification of the Rayleigh and the Van der Pol oscillators with additional nonlinear softening and hardening terms. To obtain an approximation of the limit cycle of the oscillator and its stability, two methods are studied: the energy balance method and the Lindstedt–Poincare perturbation technique. The experimental force signals of pedestrians at four different walking speeds are used for the identification of the values of the model parameters. The results obtained from the proposed model show a good agreement with the experimental ones.

  • Modelling vertical human walking forces using self-sustained oscillator
    Prakash Kumar, Anil Kumar, Vitomir Racic, and Silvano Erlicher

    Mechanical Systems and Signal Processing, ISSN: 08883270, eISSN: 10961216, Pages: 345-363, Published: 15 January 2018 Elsevier BV

  • Characterization of weld fusion zone for TIG welded p91 and P92 steels
    Archives of Metallurgy and Materials, ISSN: 17333490, Pages: 1755-1761, Published: 2018

  • A modified hybrid Van der Pol–Duffing–Rayleigh oscillator for modelling the lateral walking force on a rigid floor
    Prakash Kumar, Anil Kumar, and Silvano Erlicher

    Physica D: Nonlinear Phenomena, ISSN: 01672789, Volume: 358, Pages: 1-14, Published: 1 November 2017 Elsevier BV

  • Microstructure and mechanical behaviour characterisation of Al-Al<inf>2</inf>O<inf>3</inf> MMC processed by DIMOX and Al-Al<inf>2</inf>O<inf>3</inf>/MnO<inf>2</inf> MMC processed via stir casting route
    Vikas Verma, Prakash Kumar, Kamal Kumar Mittal, Sandeep Chauhan, and P.C. Tewari

    International Journal of Materials Engineering Innovation, ISSN: 17572754, eISSN: 17572762, Issue: 3-4, Pages: 219-235, Published: 2016 Inderscience Publishers

  • Modelling of Lateral Human Walking Force by Self-sustained Oscillator
    Prakash Kumar and Anil Kumar

    Procedia Engineering, eISSN: 18777058, Volume: 144, Pages: 945-952, Published: 2016 Elsevier BV

  • Transient Vibration Reduction of a Powertrain Using MRE Based Adaptive Tuned Vibration Absorber
    Manoj Kumar Sethi, Prakash Kumar, and Anil Kumar

    Procedia Engineering, eISSN: 18777058, Volume: 144, Pages: 689-696, Published: 2016 Elsevier BV

RECENT SCHOLAR PUBLICATIONS

  • Study on the effect of the grain refinement on mechanical properties of the P92 welded joint
    C Pandey, N Kumar, S Sirohi, T Rajasekaran, S Kumar, P Kumar
    Journal of Materials Engineering and Performance 31 (6), 4385-4404 2022

  • Characterization of Microstructure and Mechanical Properties of Cr-Mo Grade P22/P91 Steel Dissimilar Welds for Supercritical Power Plant Application
    S Sirohi, A Sauraw, A Kumar, S Kumar, T Rajasekaran, P Kumar, ...
    Journal of Materials Engineering and Performance, 1-15 2022

  • A Study on Residual Stress Distribution in Welded Joint of P91 and SS304H Steel Plate
    S Sirohi, PK Taraphdar, P Kumar, C Pandey
    Recent Advances in Manufacturing Processes and Systems, 1-10 2022

  • Characterization of the soft zone in dissimilar welds joint of 2.25 Cr-1Mo and lean duplex LDX2101 steel
    C Pandey, JG Thakare, PK Taraphdar, P Kumar, A Gupta, S Sirohi
    Fusion Engineering and Design 163, 112147 2021

  • Role of Ni-based filler on charpy impact toughness of the P91 welds joint
    S Sirohi, P Kumar, A Gupta, S Kumar, C Pandey
    Materials Today: Proceedings 44, 1043-1049 2021

  • Study of mechanical properties of Al2014-B4C-Gr hybrid nano composite
    N Kaushik, P Kumar, J Ghose, SK Jha
    Materials Today: Proceedings 33, 5573-5576 2020

  • Analysis of surface integrity and dimensional accuracy in EDM of P91 steels
    P Kumar, S Dewangan, C Pandey
    Materials Today: Proceedings 33, 5378-5383 2020

  • Materials for energy harvesting with a nonlinear energy sink: a literature review
    P Kumar, A Kumar, C Pandey, S Dewangan, SK Jha
    Materials Today: Proceedings 33, 5632-5637 2020

  • Study on effect of double austenitization treatment on fracture morphology tensile tested nuclear grade P92 steel
    C Pandey, MM Mahapatra, P Kumar, P Kumar, N Saini, JG Thakare, ...
    Engineering Failure Analysis 96, 158-167 2019

  • Serviceability Analysis of a Footbridge Subjected to Pedestrian Walking
    P Kumar, AK Godara, A Kumar
    Advances in Engineering Design, 405-413 2019

  • Optimization of Quality and Productivity of Wire EDM by Using L9 Orthogonal Array
    SK Dewangan, P Kumar, SK Jha
    Advances in Industrial and Production Engineering, 93-100 2019

  • Modelling vertical human walking forces using self-sustained oscillator
    P Kumar, A Kumar, V Racic, S Erlicher
    Mechanical Systems and Signal Processing 99, 345-363 2018

  • Modeling of Longitudinal Human Walking Force Using Self-Sustained Oscillator
    P Kumar, A Kumar, V Racic
    International Journal of Structural Stability and Dynamics 18 (6), 1850080 2017

  • A modified hybrid Van der Pol–Duffing–Rayleigh oscillator for modelling the lateral walking force on a rigid floor
    P Kumar, A Kumar, S Erlicher
    Physica D: Nonlinear Phenomena 358, 1-14 2017

  • A Nonlinear Oscillator Model to Generate Lateral Walking Force on a Rigid Flat Surface
    P Kumar, A Kumar, S Erlicher
    International Journal of Structural Stability and Dynamics 18 (2), 1850020 2017

  • Microstructure and mechanical behaviour characterisation of Al-Al2O3 MMC processed by DIMOX and Al-Al2O3/MnO2 MMC processed via stir casting route
    V Verma, P Kumar, KK Mittal, S Chauhan, PC Tewari
    International Journal of Materials Engineering Innovation 7 (3-4), 219-235 2016

  • MRE based Adaptive Tuned Vibration Absorber for power train transient vibration reduction
    M Sethi, P Kumar, A Kumar
    International Conference on Advances in Dynamics, Vibration and Control 2016

  • Modelling of Lateral Human Walking Force by Self-sustained Oscillator
    P Kumar, A Kumar
    Procedia Engineering 144, 945-952 2016

  • Transient vibration reduction of a powertrain using MRE based adaptive tuned vibration absorber
    MK Sethi, P Kumar, A Kumar
    Procedia Engineering 144, 689-696 2016

  • Materials for energy harvesting from Ambient Vibration: A literature review
    P Kumar, A Kumar
    23rd International Conference on Processing and Fabrication of Advanced 2014

MOST CITED SCHOLAR PUBLICATIONS

  • Study on effect of double austenitization treatment on fracture morphology tensile tested nuclear grade P92 steel
    C Pandey, MM Mahapatra, P Kumar, P Kumar, N Saini, JG Thakare, ...
    Engineering Failure Analysis 96, 158-167 2019
    Citations: 37

  • A modified hybrid Van der Pol–Duffing–Rayleigh oscillator for modelling the lateral walking force on a rigid floor
    P Kumar, A Kumar, S Erlicher
    Physica D: Nonlinear Phenomena 358, 1-14 2017
    Citations: 24

  • Modelling vertical human walking forces using self-sustained oscillator
    P Kumar, A Kumar, V Racic, S Erlicher
    Mechanical Systems and Signal Processing 99, 345-363 2018
    Citations: 17

  • Human induced vibration in structures
    P Kumar, A Kumar
    Int. J. Mech. Eng. Robot. Res 1 (1), 44-54 2014
    Citations: 12

  • Characterization of the soft zone in dissimilar welds joint of 2.25 Cr-1Mo and lean duplex LDX2101 steel
    C Pandey, JG Thakare, PK Taraphdar, P Kumar, A Gupta, S Sirohi
    Fusion Engineering and Design 163, 112147 2021
    Citations: 11

  • A Nonlinear Oscillator Model to Generate Lateral Walking Force on a Rigid Flat Surface
    P Kumar, A Kumar, S Erlicher
    International Journal of Structural Stability and Dynamics 18 (2), 1850020 2017
    Citations: 11

  • Modeling of Longitudinal Human Walking Force Using Self-Sustained Oscillator
    P Kumar, A Kumar, V Racic
    International Journal of Structural Stability and Dynamics 18 (6), 1850080 2017
    Citations: 10

  • Modelling of Lateral Human Walking Force by Self-sustained Oscillator
    P Kumar, A Kumar
    Procedia Engineering 144, 945-952 2016
    Citations: 8

  • Transient vibration reduction of a powertrain using MRE based adaptive tuned vibration absorber
    MK Sethi, P Kumar, A Kumar
    Procedia Engineering 144, 689-696 2016
    Citations: 8

  • Analysis of surface integrity and dimensional accuracy in EDM of P91 steels
    P Kumar, S Dewangan, C Pandey
    Materials Today: Proceedings 33, 5378-5383 2020
    Citations: 6

  • Role of Ni-based filler on charpy impact toughness of the P91 welds joint
    S Sirohi, P Kumar, A Gupta, S Kumar, C Pandey
    Materials Today: Proceedings 44, 1043-1049 2021
    Citations: 5

  • Microstructure and mechanical behaviour characterisation of Al-Al2O3 MMC processed by DIMOX and Al-Al2O3/MnO2 MMC processed via stir casting route
    V Verma, P Kumar, KK Mittal, S Chauhan, PC Tewari
    International Journal of Materials Engineering Innovation 7 (3-4), 219-235 2016
    Citations: 5

  • Materials for energy harvesting with a nonlinear energy sink: a literature review
    P Kumar, A Kumar, C Pandey, S Dewangan, SK Jha
    Materials Today: Proceedings 33, 5632-5637 2020
    Citations: 3

  • Optimization of Quality and Productivity of Wire EDM by Using L9 Orthogonal Array
    SK Dewangan, P Kumar, SK Jha
    Advances in Industrial and Production Engineering, 93-100 2019
    Citations: 3

  • Comparision of the transmission whole-body vibration to the body segments of standing subjects holding handle and handrail
    PP Chalotra, SK Chand, P Kumar, VH Saran
    MIT Int J Mech Eng 3 (1), 63-68 2013
    Citations: 3

  • Effect of Noise and Vibration on Human Physiological Parameters
    P Kumar, VH Saran, SP Harsha
    MIT International Journal of Mechanical Engineering 4 (1), 58-62 2014
    Citations: 2

  • Study on the effect of the grain refinement on mechanical properties of the P92 welded joint
    C Pandey, N Kumar, S Sirohi, T Rajasekaran, S Kumar, P Kumar
    Journal of Materials Engineering and Performance 31 (6), 4385-4404 2022
    Citations: 1

  • Characterization of Microstructure and Mechanical Properties of Cr-Mo Grade P22/P91 Steel Dissimilar Welds for Supercritical Power Plant Application
    S Sirohi, A Sauraw, A Kumar, S Kumar, T Rajasekaran, P Kumar, ...
    Journal of Materials Engineering and Performance, 1-15 2022
    Citations: 1

  • Study of mechanical properties of Al2014-B4C-Gr hybrid nano composite
    N Kaushik, P Kumar, J Ghose, SK Jha
    Materials Today: Proceedings 33, 5573-5576 2020
    Citations: 1