Sudip Dey

Sudip Dey
National Institute of Technology, Silchar | NIT Silchar · Department of Mechanical Engineering

PhD (Engineering), Post-Doc (Swansea University, UK and IPF, Germany)

About

138
Publications
25,239
Reads
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2,033
Citations
Citations since 2017
91 Research Items
1818 Citations
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20172018201920202021202220230100200300400
20172018201920202021202220230100200300400
20172018201920202021202220230100200300400
Introduction
Dr. Sudip Dey is working as Assistant Professor in Mechanical Engineering Department of National Institute of Technology Silchar, India. Previously, He was a Post-doctoral Researcher at Leibniz-Institut für Polymerforschung Dresden e. V., Germany, worked with Prof. Gert Heinrich (TU Dresden, Germany). Prior to that he was a Post-doctoral Researcher at College of Engineering, Swansea University, United Kingdom, worked with Prof. Sondipon Adhikari. He obtained Bachelor in Mechanical Engineering Degree from Jadavpur University, India. He received Ph.D. (Engg.) degree from Jadavpur University, India. His field of specialization is Applied Mechanics and Design.
Additional affiliations
June 2015 - present
Leibniz Institute of Polymer Research Dresden
Position
  • PostDoc Position
September 2014 - May 2015
Swansea University
Position
  • Teaching Assistantship
February 2014 - May 2015
Swansea University
Position
  • PostDoc Position
Education
February 2009 - September 2013
Jadavpur University
Field of study
  • PhD (Engineering)

Publications

Publications (138)
Article
This paper presents the effect of rotational speeds on free vibration characteristics of delaminated twisted graphite–epoxy cross-ply composite conical shells employing finite element method. Theoretical formulation is based on Mindlin's theory considering an eight noded isoparametric plate bending element. A generalized dynamic equilibrium equatio...
Article
In this paper, the finite element method is employed to investigate the effects of delamination on free vibration characteristics of graphite–epoxy pretwisted shallow angle-ply composite conical shells. The generalized dynamic equilibrium equation is derived from Lagrange’s equation of motion neglecting Coriolis effect for moderate rotational speed...
Article
Full-text available
This paper presents the time dependent response of multiple delaminated angle-ply composite pretwisted conical shells subjected to low velocity normal impact. The finite element formulation is based on Mindlin’s theory incorporating rotary inertia and effects of transverse shear deformation. An eight-noded isoparametric plate bending element is emp...
Article
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This paper presents a finite element method to compare the effects of delamination on free vibration of graphite-epoxy bending stiff and torsion stiff composite pretwisted shallow conical shells. The generalized dynamic equilibrium equation is derived from Lagrange’s equation of motion neglecting the Coriolis effect for moderate rotational speeds....
Article
Full-text available
In this paper, a finite element method is employed to investigate the free vibration characteristics of single and multiple delaminated graphite-epoxy quasi-isotropic composite conical shells. The generalized dynamic equilibrium equation is derived from Lagrange’s equation of motion neglecting Coriolis effect for moderate rotational speeds. The for...
Article
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Motivated by recent discoveries concerning the extreme superiority of multilayer graphene in terms of kinetic energy dissipation compared to conventional monolithic materials, this article investigates the ballistic performance and physics-informed strategic sequencing of graphene-reinforced aluminum laminates under the influence of random disorder...
Article
This paper presents the surrogate-based predictive dynamic behavior of hybrid functionally graded sandwich cylindrical shells. The material properties are graded based on the power law for functionally graded structures to comply with high strength and stiffness at an elevated temperature. At the same time, the sandwich composite is employed to ens...
Article
WEDM is efficient in machining complicated profiles with high dimensional accuracy. The Nickel-aluminum-bronze (NAB) is a high-strength alloy with exceptional corrosion-resistant properties and is abundantly used in marine applications such as propellers, valves, and seawater pumps. The previous literature reports numerous instances of WEDM-induced...
Chapter
Full-text available
In the present article, we explored the ballistic behaviour of bilayer graphene (BLG) by performing a series of molecular dynamics (MD) simulations. The computationally expensive nature of large scale MD simulations frequently hinders a thorough understanding of material characterization. To mitigate this lacuna we demonstrated the successful integ...
Chapter
This chapter presents the stochastic low-velocity impact responses of a cantilever plate composed of functionally graded materials (FGM) by employing the radial basis function (RBF) model. A novel algorithm is developed to ascertain the stochastic transient impact responses experienced by the FGM plates due to the central impact of a spherical stee...
Article
Wire electric discharge machining (WEDM) has gained tremendous market share due to its potential to create complex profiles and ease in machining exotic materials. The inherent problem of wire lag, however, has a significant impact on the accuracy and precision of complex profiles in WEDM. Furthermore, if parametric uncertainties are not taken into...
Article
The present study outlines the stochastic framework to address the dynamic behavior of the porous functionally graded cantilever plates. The intrusive variability in the fundamental material properties of the porous structures composed of functionally graded materials (FGM) influences the system's desired operational behavior. This creates a strong...
Article
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PurposeThe vibration characteristics of the beam depend upon its uniformity, material density, and presence of any defects like cracks. The present study investigated the vibration characteristics of a cracked cantilever beam comprised of structural steel and E-glass fiber using ANSYS 18.1 FEA software.Method The effect of crack parameters, such as...
Article
First-order shear deformation theory (FSDT) is less accurate compared to higher-order theories like higher-order zigzag theory (HOZT).In case of large-scale simulation-based analyses like uncertainty quantification and optimization using FSDT, such errors propagate and accumulate over multiple realizations, leading to significantly erroneous result...
Article
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PurposeThe aim of this paper is to quantify the stochastic effect for functionally graded (FG) plate in conjunction to free vibration and impact loading.Method The variabilities in geometric and materials properties are considered. A support vector machine (SVM) is employed to construct the surrogate model. The constructed model portrays significan...
Chapter
Attaining improved level of process performance in wire-electro discharge machining (WEDM) at any particular parametric condition is always a complicated task due to the inherent nature of the process. Endeavour to improve one performance measure is always done at the cost of the remaining performance measures. Amongst the performance measures, mat...
Chapter
Full-text available
This article reflects the effect of relative thickness of various components of hybrid structures on random natural frequencies of hyperbolic paraboloid shells. The total thickness, other geometrical parameters and the material properties are kept constant. Here, the hybrid shell structure is composed of three different components: laminated compos...
Chapter
Stochastic first-ply failure analysis of a carbon-epoxy-based laminated composite plate is conducted based on Monte Carlo simulation (MCS) and moving least squares (MLS)-based surrogate model. A five-noded finite element (FE) model is developed to determine the deterministic first-ply failure load. The inherited randomness in the geometrical proper...
Article
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Randomness in the media breaks its periodicity affecting the vibration and wave propagation performance. Such disorder caused by the variability may lead to interesting physical phenomena such as trapping and scattering waves, wave reflection, and energy localisation. While the randomness may be attributed to manufacturing irregularities and quantify...
Article
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Purpose: This paper presents the sensitivity analysis (SA) of the random natural frequency responses of hybrid multi-functionally graded sandwich (HMGS) shells for establishing a unified measure in the case of multi-objective performances. The functionally graded materials, laminated composites, and sandwich cores are employed to develop such novel...
Article
In structural applications, laminated composites are typically the best choice for providing a high strength-to-weight ratio. The composite laminates, on the other hand, are susceptible to the first ply failure (FPF), which can result in delamination, matrix cracking, and fibre breaking. As a result, it's critical to map the FPF of laminated compos...
Article
The present article outlines a probabilistic investigation of the uniaxial tensile behaviour of twisted bilayer graphene (tBLG) structures. In this regard, the twist angle (θ) and temperature (T) are considered as the control parameters and the ultimate tensile strength (UTS) and failure strain of the tBLG structures are considered as the responses...
Article
The current study aims to investigate the different geotechnical characteristics of soil stabilization with the addition of lime and RHA in varying amounts (Lime %: 3, 5, 7, 9; and RHA %: 4, 8, 12, 16). A series of compaction, unconfined compressive strength (UCS), California bearing ratio (CBR), pH, and XRD tests are performed in the laboratory to...
Article
Full-text available
The present report outlines a probabilistic investigation of the temperature dependent resonant frequency of various BNNT and CNT-based hetero-junctions and Van der Waals (VdW) heterostructures. In the preliminary analysis, the vibrational behaviour of the considered heterostructures is evaluated by taking into account the degree of heterogeneity,...
Article
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Graphene is one of the strongest, stiffest, and lightest nanoscale materials known to date, making it a potentially viable and attractive candidate for developing lightweight structural composites to prevent high-velocity ballistic impact, as commonly encountered in defense and space sectors. In-plane twist in bilayer graphene has recently revealed...
Article
The present paper proposes a surrogate-assisted moment-independent stochastic sensitivity analysis of laminated composite plates for establishing a unified measure in the case of multi-objective performances. With the advancements in artificially engineered structural systems spanning across different length scales, it has become more common to des...
Article
We present herein a polynomial chaos-Kriging (PC-Kriging)-based molecular dynamics (MD) simulation framework of twisted bilayer graphene (tBLG) structures to investigate the influence of stochastic parametric variations on their nano-indentation behaviour. The relative rotation angle (RRA) and operating temperature were taken as input parameters, w...
Chapter
The characterization of nano-scale materials in the lab setting requires a huge cost, precision and time. The molecular simulations rule out the cost and precision but still these simulations are computationally expensive and intensive. In this regard, we present a support vector machine (SVM)-based molecular dynamics simulation of monolayer graphe...
Chapter
Full-text available
This paper showcases the outcome of thickness on probabilistic natural frequencies of hybrid functionally graded (FG)-sandwich materials with cylindrical shell geometry. The top facesheet of the sandwich structure is replaced by functionally graded material, while the bottom facesheet is that of laminated composites. An eight noded isoperimetric qu...
Article
Full-text available
The wire electric discharge machining (WEDM) is a potential alternative over the conventional machining methods, in terms of accuracy and ease in producing intricate shapes. However, the WEDM process parameters are exposed to unavoidable and unknown sources of uncertainties, following their inevitable influence over the process performance features...
Article
Full-text available
Superalloys are categorized as difficult to process materials with a broad spectrum of applications in industries. Process modeling and optimization of WEDM performances on nickel- and titanium-based superalloys are widely investigated. However, such investigations on iron-based superalloy are still lacking and hence probed in the present article....
Article
Full-text available
Molecular dynamics (MD) simulations have emerged to be a vital tool for the analysis of nanoscale materials like graphene. However, reliability of the results derived from MD simulations depends on the adopted inter-atomic potential (IP), which is mathematically fitted to the data obtained from first principle approaches or experiments. There exist...
Article
Full-text available
The present study deals with analysing the dynamic behaviour of a smart beam coupled with piezoelectric materials in the unimorph and bimorph configurations connected to resonant shunt circuits. The resonant shunt circuit connection is applied to promote and passively modulate the vibration and flexural wave propagation attenuation. A Spectral Elem...
Article
Full-text available
Despite the tremendous capabilities of Molecular dynamics (MD) simulations, they suffer from the limitation of computationally intensive and time-consuming nature. This hinders the seamless discovery of nanomaterials with adequate computational insights. Over the last decade, graphene has received widespread attention from the scientific community...
Chapter
This paper presents the effect of thickness on probabilistic buckling load of sandwich plate using radial basis function (RBF) approach. Due to inevitable material anisotropy and manufacturing inaccuracy such type of structure are always subjected to spatial variability. So, it is required to consider the stochastic effect which makes computational...
Chapter
The present paper deals with the stochastic natural frequency analysis of functionally graded material (FGM) plates by employing the multivariate adaptive regression splines surrogate (MARS) model. The gradation of material properties of constitute materials is carried out by power law distribution. The variation in material properties for differen...
Preprint
Full-text available
Superalloys are categorized as difficult to process materials with a broad spectrum of applications in industries. Process modeling and optimization of Wire Electric Discharge Machining (WEDM) performances on Nickel and Titanium based superalloys are widely investigated. However, such investigations on Iron-based Superalloy are still lacking and he...
Chapter
Full-text available
The present chapter investigates the moment-independent sensitivity analysis for hybrid sandwich structures (having cylindrical shell geometry) subjected to low-velocity impact. These hybrid structures are extensively used in lightweight applications where thermal exposure/resistance is of prime importance. Here, the FG facesheet is placed at the u...
Article
Full-text available
This paper presents a machine learning assisted efficient, yet comprehensive characterization of the dynamics of coronaviruses in conjunction with finite element (FE) approach. Without affecting the accuracy of prediction in low-frequency vibration analysis, we have proposed an equivalent model for the FE analysis, based on which the natural freque...
Article
Full-text available
The utility of carbon nanotubes as the reinforcement agents in polymer and metal matrix composites has opened up a new avenue in the development of novel composite materials with exceptional strength and stiffness to weight ratios. Such exploitation of superior mechanical properties of carbon nanotubes depends on their inherent irregularities and s...
Chapter
The manufacturing and fabrication of complex polymer sandwich composite plates involve various processes and parameters, and the lack of control over them causes uncertain system parameters. It is essential to consider randomness in varying parameters to analyse polymer sandwich composite plates. The present study portrays uncertainty quantificatio...
Chapter
Full-text available
This paper presents the effect of temperature on stochastic natural frequencies of cylindrical shells, composed of functionally graded materials (FGM) by using machine learning quadratic Support Vector Machine (SVM). An eight noded isoperimetric quadratic element is considered for the finite element formulation. The power law is employed to constru...
Article
Full-text available
Due to the absence of adequate control at different stages of complex manufacturing process, material and geometric properties of composite structures are often uncertain. For a secure and safe design, tracking the impact of these uncertainties on the structural responses is of utmost significance. Composite materials, commonly adopted in various m...
Article
Full-text available
In this paper, uncertainty quantification in natural frequencies for laminated soft core sandwich plates is presented by employing finite element (FE) coupled polynomial neural network (PNN) approach. The computational efficiency and accuracy is achieved by using PNN as surrogate model. Latin hypercube sampling method is employed for training of da...
Chapter
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This study presents the effect of skewness in natural frequency responses of sandwich plates. The free vibration analysis is carried out by using higher order zigzag theory (HOZT) considering random input parameters. It satisfies the transverse shear stress continuity condition and the transverse flexibility effect. The in-plane displacement throug...
Article
Full-text available
Doping in pristine 2D materials brings about the advantage of modulating wide range of mechanical properties simultaneously. However, intrinsic defects (such as Stone-Wales and nanopore) in such hybrid materials are inevitable due to complex manufacturing and synthesis processes. Besides that, defects and irregularities can be intentionally induced...
Article
This paper quantifies the influence of uncertainty in the low-velocity impact responses of sandwich plates with composite face sheets considering the effects of obliqueness in impact angle and twist in the plate geometry. The stochastic impact analysis is conducted by using finite element (FE) modelling based on an eight nodded isoparametric quadra...
Article
The present paper portrays the mapping for stochasticity in low-velocity impact responses of functionally graded material (FGM) plates by employing multivariate adaptive regression splines (MARS) surrogate model in conjunction with finite element (FE) approach. The unavoidable stochastic variabilities (caused due to numerous errors involved in manu...
Chapter
Full-text available
The initiation and propagation of uncertainties in structural behaviour of complex anisotropic sandwich structure has significant computational challenges. Due to limitation of experimental data, probabilistic descriptions of uncertain parameters are not practically feasible to expedite. This paper presents the prediction capability of surrogate mo...
Article
Full-text available
This paper deals with the stochastic sensitivity analysis of functionally graded material (FGM) plates subjected to free vibration and low-velocity impact to identify the most influential parameters in the respective analyses. A hybrid moment-independent sensitivity analysis is proposed coupled with the least angle regression based adaptive sparse...
Article
This paper deals with portraying the stochastic natural frequencies of cantilever plates made up of functionally graded materials (FGMs) by employing the radial basis function (RBF)-based finite element (FE) approach. The material modeling of FGM plates is carried out by employing three different distribution laws, namely power law, sigmoid law, an...
Article
Full-text available
This article presents a concise overview on condition monitoring and retrofitting/ strengthening of structures including a practical case study of strengthening for an existing historical building. Condition assessment of an existing structure is required mainly to check serviceability and safety requirements of the structure after short term event...
Article
Full-text available
The stochastic buckling behaviour of sandwich plates is presented considering uncertain system parameters (material and geometric uncertainty). The higher-order-zigzag theory (HOZT) coupled with stochastic finite element model is employed to evaluate the random first three buckling loads. A cubic in-plane displacement variation is considered for bo...
Book
Full-text available
Over the last few decades, uncertainty quantification in composite materials and structures has gained a lot of attention from the research community as a result of industrial requirements. This book presents computationally efficient uncertainty quantification schemes following meta-model-based approaches for stochasticity in material and geometri...
Article
The dual-axis buckling of Laminated composite skew hyperbolic paraboloid with cutouts subjected to the in-plane biaxial and the shear load is investigated for various boundary conditions using the present mathematical model. Variation of transverse shear stresses is represented by a second-order function across the thickness, and the cross-curvatur...
Article
Full-text available
This paper quantifies the compound effect of source-uncertainties on low-velocity impact of functionally graded material (FGM) plates following a coupled surrogate based finite element simulation approach. The power law is employed to evaluate the material properties of FGM plate at different points, while the modified Hertzian contact law is imple...