Influence of Concentric Cutouts on Axially Compressed Laminated Shell Panel Buckling Behavior Hukum Chand Dewangan, Nitin Sharma, Prashik Malhari Ramteke, Subrata Kumar Panda International Journal of Applied Mechanics, 2026 This study presents a numerical assessment of the critical buckling behavior of various geometrical configurations of laminated composite flat/curved panels featuring concentric cutouts of different shapes and dimensions. A finite element formulation, incorporating higher-order kinematic assumptions, is employed to model the multi-layered structure with accuracy. An isoparametric element framework is used to simulate the panel geometry, with the cutout represented through a quarter-plate modeling technique and extended to form the complete configuration. The approach is verified by benchmarking its results against those available in the published literature. The predicted normalized critical buckling loads show excellent agreement with three-dimensional elasticity with deviations generally within ±2%. In contrast, classical laminate plate theory (CLPT) exhibits significantly larger deviations reaching up to about 38%, highlighting the importance of higher-order shear deformation effects. Also, the present HSDT predictions differ by only 0.86–6.99% from experimental results. The model is further tested for its adaptability across various geometrical forms, such as flat plates, cylindrical, spherical, hyperbolic and elliptical surfaces, under different material systems and boundary settings. The findings highlight the significance of using a higher-order numerical strategy in predicting accurate modal characteristics of perforated laminated composites. A series of case studies is conducted to examine the influence of critical design parameters such as aspect ratio, thickness, curvature and boundary conditions. The study underscores the necessity of advanced modeling techniques for effective structural analysis of composite components with geometric discontinuities.
Dynamic Analysis of Cracked Functionally Graded Curved Panels with Porosity Variation Prashik Malhari Ramteke, Kinshuk Maitra, Hukum Chand Dewangan International Journal of Structural Stability and Dynamics, 2026 This study investigates the free-vibration behavior of cracked functionally graded material (FGM) curved panels, considering variable porosity and different material grading patterns. A higher-order displacement theory is utilized to develop the mathematical model, and the Galerkin weak formulation of the vibration problem is obtained using Hamilton’s principle. The numerical solution is obtained through the isoparametric finite element method, and a customized computational code is developed to evaluate the natural frequencies of damaged FG structures. Three material grading patterns — exponential, sigmoid, and power-law distributions — are considered, along with both even and uneven porosity distributions through the thickness. The effects of several key parameters, including crack length ratio, porosity index, grading pattern, aspect ratio, thickness-to-length ratio, curvature ratio, power-law exponent, and boundary conditions, on the vibration characteristics of FG panels are systematically examined. The results demonstrate that porosity distribution, crack size, and material grading significantly influence the structure’s natural frequencies, providing useful insights for the design and analysis of cracked porous FG curved panels.
Thermomechanical deflection responses of porous functionally graded curved panel structures using higher-order FEM Prashik Malhari Ramteke, Hukum Chand Dewangan, Nitin Sharma, S.D.V.S.S. Varma Siruvuri, Subrata Kumar Panda Engineering Computations Swansea Wales, 2025 Purpose The purpose of this article is to study the thermomechanical deflection responses of functionally graded (FG) doubly curved shell panels. The study has been extended to analyze the influence of variable design parameters on the deflection responses of FG panels. Design/methodology/approach A computer code is developed in MATLAB to compute deflection parameters, utilizing the mathematical formulation, including the temperature-dependent (TMDP) and independent (TIDP) properties of the graded structure to ensure the real-time characteristics of the structure/structural components in service. The responses are obtained by solving the system governing differential equations through the variational technique in association with the finite element (FE) technique. Findings The FE solution consistency is verified by checking the mesh independence test. Additionally, the model accuracy is established by comparing the deflection values with those published results available in the public domain. Further, a few numerical experiments are carried out for different parameters (material and geometry) to check the derived model's adaptability for the thermomechanical deflection prediction of graded structures. The outcomes against the loading, geometrical forms and parameters are discussed in detail. Originality/value The analysis brings clarity regarding the requirement of the present developed mathematical model to address the influence of a variety of design-associated parameters on the static deflection responses of the FG curved panels, considering TMDP material properties.
Synergistic Reinforcement of Al2O3 and Fly Ash in Al–Si Alloys: Enhanced Thermal Stability and Mechanical Properties HC Dewangan, SK Dewangan, RK Bhushan Transactions of the Indian Institute of Metals 79, 137 , 2026 2026
Dynamic Analysis of Cracked Functionally Graded Curved Panels with Porosity Variation PM Ramteke, K Maitra, HC Dewangan International Journal of Structural Stability and Dynamics, 2750345 , 2026 2026
Influence of Concentric Cutouts on Axially Compressed Laminated Shell Panel Buckling Behavior HC Dewangan, N Sharma, PM Ramteke, SK Panda International Journal of Applied Mechanics , 2026 2026
Thermomechanical deflection responses of porous functionally graded curved panel structures using higher-order FEM PM Ramteke, HC Dewangan, N Sharma, SV Siruvuri, SK Panda Engineering Computations 43 (1), 43-58 , 2026 2026
Interlayer hybridization effect on the mechanical properties and buckling responses of basalt/carbon/epoxy‑laminated composites HC Dewangan, PK Mallisetty, P Chowdhury, NC Murmu Iranian Polymer Journal , 2025 2025 Citations: 4
Theoretical prediction and experimental verification of thermomechanical deflection responses of geometrically nonlinear porous graded curved structure PM Ramteke, EK Kumar, HC Dewangan, BK Patle, SK Panda International Journal of Mechanics Materials and Design , 2024 2024 Citations: 5
Extuder For Rapid Prototyping Machines A Guru, HC Dewangan, SK Panda IN Patent 29/2,024 , 2024 2024
Theoretical and experimental vibroacoustic analysis of advanced hybrid structure (CNT/luffa/epoxy) EK Kumar, V Kumar, N Sharma, HC Dewangan, AK Meher, SK Panda Acta Mechanica , 2023 2023 Citations: 4
Numerical prediction of thermoacoustic responses of CNT reinforced natural (luffa) fibre/epoxy hybrid composite and experimental verification EK Kumar, AK Meher, V Kumar, N Sharma, HC Dewangan, P Kataria, ... Applied Acoustics 211, 109580 , 2023 2023 Citations: 5
Extruder for 3D Printers A Guru, HC Dewangan, SK Panda IN Patent 32/2,023 , 2023 2023
Computational modelling and analysis of thermoacoustic behaviour of carbon nanotube-reinforced plant fibre epoxy composite–an extensive review RK Satankar, N Sharma, PV Katariya, V Kumar, HC Dewangan, A Pal, ... Materials Today Communications 36, 106717 , 2023 2023 Citations: 13
Nonlinear deflection characteristics of damaged composite structure theoretical prediction and experimental verification V Kumar, HC Dewangan, N Sharma, SK Panda, SR Mahmoud Structures 52 (June), 410–421 , 2023 2023 Citations: 11
Thermo-mechanical large deformation characteristics of cutout borne multilayered curved structure: Numerical prediction and experimental validation HC Dewangan, SK Panda, N Sharma, SR Mahmoud, D Harursampath, ... International Journal of Non-Linear Mechanics 120 (April), 104345 , 2023 2023 Citations: 18
A review of linear and nonlinear structural responses of laminated flat/curved panels with and without cutout under thermo-mechanical loading HC Dewangan, SK Panda, N Sharma Composite Structures 303, 116340 , 2023 2023 Citations: 32
Numerical Frequency Prediction of Combined Damaged Laminated Panel (Delamination Around Cut‑out) and Experimental Validation R Pal, M Chaudhury, HC Dewangan, CK Hirwani, V Kumar, SK Panda Journal of Vibration Engineering & Technologies , 2022 2022 Citations: 6
Geometrical large deformation-dependent numerical dynamic deflection prediction of cutout borne composite structure under thermomechanical loadings and experimental verification HC Dewangan, SK Panda, SR Mahmoud, D Harursampath, V Mahesh Acta Mechanica , 2022 2022 Citations: 7
Nonlinear dynamic behavior of a damaged laminated shell structure under time-dependent mechanical loading V Kumar, HC Dewangan, N Sharma, SK Panda, SR Mahmoud Acta Mechanica , 2022 2022 Citations: 3
Strain Rate Loading Effects on Fiber-Reinforced Polymeric Composites with and Without Damage: A Comprehensive Review V Kumar, EK Kumar, HC Dewangan, N Sharma, SK Panda, SR Mahmoud Transactions of the Indian Institute of Metals , 2022 2022 Citations: 12
Numerical frequency and SERR response of damaged (crack/delamination) multilayered composite under themomechanical loading: An experimental verification V Kumar, HC Dewangan, N Sharma, SK Panda Composite Structures 293, 115709 , 2022 2022 Citations: 13
Numerical and experimental deflection behavior of damaged doubly curved composite laminated shell structure V Kumar, HC Dewangan, N Sharma, SK Panda Archive of Applied Mechanics , 2022 2022 Citations: 8
MOST CITED SCHOLAR PUBLICATIONS
Numerical prediction of static and vibration responses of damaged (crack and delamination) laminated shell structure: An experimental verification V Kumar, HC Dewangan, N Sharma, SK Panda Mechanical Systems and Signal Processing 170 (May 2022), 108883 , 2022 2022 Citations: 43
Effect of nano glass cenosphere filler on hybrid composite eigenfrequency responses-An FEM approach and experimental verification HK Pandey, CK Hirwani, N Sharma, PV Katariya, HC Dewangan, ... Advances in Nano Research 7 (6), 419 , 2019 2019 Citations: 43
Numerical eigenfrequency and experimental verification of variable cutout (square/rectangular) borne layered glass/epoxy flat/curved panel structure HC Dewangan, N Sharma, CK Hirwani, SK Panda Mechanics Based Design of Structures and Machines 50 (5), 1640-1657 , 2022 2022 Citations: 40
Multiscale finite element prediction of thermomechanical flexural strength of nanotube-reinforced hybrid smart composite panel bonded with SMA fibre K Mehar, SK Panda, HC Dewangan Structures 28, 2300-2310 , 2020 2020 Citations: 33
A review of linear and nonlinear structural responses of laminated flat/curved panels with and without cutout under thermo-mechanical loading HC Dewangan, SK Panda, N Sharma Composite Structures 303, 116340 , 2023 2023 Citations: 32
Numerical deflection and stress prediction of cutout borne damaged composite flat/curved panel structure HC Dewangan, SK Panda, CK Hirwani Structures 32, 660-670 , 2021 2021 Citations: 28
Numerical Nonlinear Static Analysis of Cutout-Borne Multilayered Structures and Experimental Validation HC Dewangan, N Sharma, SK Panda AIAA Journal , 2021 2021 Citations: 23
Damaged composite structural strength enhancement under elevated thermal environment using shape memory alloy fiber KK Erukala, PK Mishra, HC Dewangan, SK Panda, M Dwivedi Acta Mechanica , 2022 2022 Citations: 20
Analytical evaluation and experimental validation of energy harvesting using low frequency band of piezoelectric bimorph actuator K Mishra, SK Panda, V Kumar, HC Dewangan Smart Structures and Systems 26 (3), 391-401 , 2020 2020 Citations: 20
Experimental validation of role of cut-out parameters on modal responses of laminated composite—A coupled FE approach HC Dewangan, SK Panda, N Sharma International Journal of Applied Mechanics 12 (06), 2050068 , 2020 2020 Citations: 20
Combined damage influence prediction of curved composite structural responses using VCCT technique and experimental verification V Kumar, HC Dewangan, N Sharma, SK Panda International Journal of Applied Mechanics 13 (08), 2150086 , 2021 2021 Citations: 19
Thermo-mechanical large deformation characteristics of cutout borne multilayered curved structure: Numerical prediction and experimental validation HC Dewangan, SK Panda, N Sharma, SR Mahmoud, D Harursampath, ... International Journal of Non-Linear Mechanics 120 (April), 104345 , 2023 2023 Citations: 18
Thermo-Mechanical Transient Flexure of Glass-Carbon-Kevlar-Reinforced Hybrid Curved Composite Shell Panels: An Experimental Verification P Sahu, N Sharma, HC Dewangan, SK Panda International Journal of Applied Mechanics , 2022 2022 Citations: 15
Theoretical prediction and experimental validity of thermal frequency responses of laminated advanced fiber-reinforced epoxy hybrid composite panel P Sahu, N Sharma, HC Dewangan, SK Panda International Journal of Structural Stability and Dynamics 22 (08), 2250088 , 2022 2022 Citations: 14
Numerical transient responses of cut-out borne composite panel and experimental validity HC Dewangan, SK Panda Proceedings of the Institution of Mechanical Engineers, Part G: Journal of … , 2020 2020 Citations: 14
Computational modelling and analysis of thermoacoustic behaviour of carbon nanotube-reinforced plant fibre epoxy composite–an extensive review RK Satankar, N Sharma, PV Katariya, V Kumar, HC Dewangan, A Pal, ... Materials Today Communications 36, 106717 , 2023 2023 Citations: 13
Numerical frequency and SERR response of damaged (crack/delamination) multilayered composite under themomechanical loading: An experimental verification V Kumar, HC Dewangan, N Sharma, SK Panda Composite Structures 293, 115709 , 2022 2022 Citations: 13
Strain Rate Loading Effects on Fiber-Reinforced Polymeric Composites with and Without Damage: A Comprehensive Review V Kumar, EK Kumar, HC Dewangan, N Sharma, SK Panda, SR Mahmoud Transactions of the Indian Institute of Metals , 2022 2022 Citations: 12
Nonlinear thermoelastic numerical frequency analysis and experimental verification of cutout abided laminated shallow shell structure HC Dewangan, SK Panda Journal of Pressure Vessel Technology, Transactions of the ASME , 2022 2022 Citations: 12
Large Deformation Effect on Dynamic Deflection Responses of Cutout-Borne Composite Shell Panel: An Experimental Validation HC Dewangan, SK Panda Journal of Engineering Mechanics 148 (8), 04022042 , 2022 2022 Citations: 12