Arup Nandy

Arup Nandy
Indian Institute of Technology Guwahati | IIT Guwahati · Department of Mechanical Engineering

Ph.D. in Mechanical Engineering
Seeking PhD student to work in Nonlinear Isogeometric Analysis

About

50
Publications
6,922
Reads
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239
Citations
Citations since 2016
45 Research Items
212 Citations
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080
Introduction
Currently I am assistant professor in Mechanical Engineering department of IIT Guwahati. I take different courses in Machine design specialization. My current research interests include (a) Edge element implementation in electromagnetic wave propagation (b) Isogeometric Analysis with Mixed formulation (c) Electromagnetic forming and perforation, Electromagnetic Crimping - Experimental and FEM simulation (d) Boundary element method in acoustics
Additional affiliations
April 2016 - March 2017
Indian Institute of Science
Position
  • Research Associate
Education
July 2011 - November 2016
Indian Institute of Science
Field of study
  • Mechanical Engineering
August 2009 - June 2011
Indian Institute of Science
Field of study
  • Mechanical Engineering
July 2005 - July 2009

Publications

Publications (50)
Article
In nodal-based finite element method (FEM), degrees of freedom are associated with the nodes of the element whereas, for edge FEM, degrees of freedom are assigned to the edges of the element. Edge element is constructed based on Whitney spaces. Nodal elements impose both tangential and normal continuity of vector or scalar fields across interface b...
Chapter
When edge-based finite elements are used to solve the various electromagnetic problems, spurious modes are avoided. In edge element, field variables are associated with the edges of the element. In the present work, we have presented the conversion algorithm to generate the edge connectivity of an edge element from nodal element information for hig...
Chapter
Finite element analysis (FEA) is a popular numerical technique in computational mechanics. It has found numerous applications in a wide variety of application domains. However, in certain situations, the conventional FEA fails to estimate the accurate behaviour of the problem domain. One such instance is the analysis of thin structural geometries w...
Article
In the present work, novel hybrid elements are proposed to alleviate the locking anomaly in non-uniform rational B-spline-based isogeometric analysis (IGA) using a two-field Hellinger–Reissner variational principle. The proposed hybrid elements are derived by adopting the independent interpolation schemes for displacement and stress fields. The key...
Conference Paper
Full-text available
In edge finite element, electric fields are obtained across edges of each element instead of nodal output as obtained in nodal finite element. In the nodal framework, the potential formulation provides required tangential continuity and normal discontinuity for electromagnetic analysis whereas this continuity requirement is directly attained in the...
Chapter
Simulation models have proven efficient in understanding and analysing the different characteristics of joining by the electromagnetic forming process. This work performs a comparative study between two different non-coupled multi-step simulation models to predict the pull-out strength of a smooth-surfaced Cu-SS tube-to-tube joint joined by electro...
Poster
Full-text available
Due to excessive mesh distortion, traditional mesh-based numerical simulation methodologies cannot accurately simulate high-speed impact welding processes like magnetic pulse welding (MPW). Therefore, a smoothed particle hydrodynamics (SPH) based methodology is implemented to study the interfacial welding morphology and jetting phenomenon during ma...
Article
In edge finite elements, electric fields are obtained across edges of each element instead of nodal output as obtained in nodal finite element. In the nodal framework, the potential formulation provides required tangential continuity and normal discontinuity for electromagnetic analysis whereas this continuity requirement is directly attained in th...
Preprint
Conventional mesh-based numerical methodologies cannot accurately simulate high-speed impact welding due to extreme distortion of mesh. Therefore, a smoothed particle hydrodynamics (SPH) based methodology is implemented to study the welding morphology and jetting phenomenon during magnetic pulse welding (MPW) of D9 clad tubes and SS 316LN end plugs...
Preprint
Conventional mesh-based numerical methodologies cannot accurately simulate high-speed impact welding due to extreme distortion of mesh. Therefore, a smoothed particle hydrodynamics (SPH) based methodology is implemented to study the welding morphology and jetting phenomenon during magnetic pulse welding (MPW) of D9 clad tubes and SS 316LN end plugs...
Preprint
Conventional mesh-based numerical methodologies cannot accurately simulate high-speed impact welding due to extreme distortion of mesh. Therefore, a smoothed particle hydrodynamics (SPH) based methodology is implemented to study the welding morphology and jetting phenomenon during magnetic pulse welding (MPW) of D9 clad tubes and SS 316LN end plugs...
Article
Non-uniform rational B-splines (NURBS)-based isogeometric analysis (IGA) suffers from locking while analyzing highly slender geometries or problems dominated by incompressibility or near incompressibility constraint. The authors have recently proposed a class of reliable and efficient NURBS-based hybrid elements to alleviate locking in two-dimensio...
Article
In case of Lagrangian finite element formulation, three-dimensional (3-D) stress-based hybrid solid elements have shown excellent coarse mesh accuracy for a wide range of applications. However, to the best of our knowledge, there is no work available towards the development of 3-D stress-based hybrid solid elements for isogeometric analysis (IGA)....
Preprint
In nodal based finite element method (FEM), degrees of freedom are associated with the nodes of the element whereas, for edge FEM, degrees of freedom are assigned to the edges of the element. Edge element is constructed based on Whitney spaces. Nodal elements impose both tangential and normal continuity of vector or scalar fields across interface b...
Article
This work studies an improved hybrid joining technique combining electromagnetic forming and adhesive joining to create a leak-tight Cu-SS tube-to-tube joint named as electromagnetically assisted adhesive joining (EAAJ). An experimental investigation is performed considering three discharge energy (3.9 kJ, 4.4 kJ and 5.0 kJ), four adhesive applicat...
Preprint
Full-text available
This work studies an improved hybrid joining technique combining electromagnetic forming and adhesive joining to create a leak-tight Cu-SS tube-to-tube joint named as electromagnetically assisted adhesive joining (EAAJ). An experimental investigation is performed considering three discharge energy (3.9 kJ, 4.4 kJ and 5.0 kJ), four adhesive applicat...
Presentation
Full-text available
Presentation in 16th International Conference on Computational Plasticity. Fundamentals and Applications (COMPLAS 2021), Barcelona-Spain, September 7-10, 2021.
Article
Electromagnetically assisted adhesive joining (EAAJ) is a novel hybrid joining technique combining the benefits of electromagnetic crimping and adhesive joining. This paper explores the possibility of creating an interference- fit tubular adhesive joint with improved strength and leak tightness. An acrylic-based structural Loctite 638 adhesive is u...
Preprint
Full-text available
Electromagnetic crimping is a high-velocity joining method to join highly conductive workpieces where a pulsed magnetic field is applied without any working medium or mechanical contact to deform the workpiece. This work explores tube-to-tube joining of Copper outer tube and Stainless steel threaded inner tube using electromagnetic crimping. A non-...
Article
This work explores the tube-to-tube joining of copper (outer) and stainless steel (inner) using electromagnetic crimping. Stand-off distance is kept constant during all the experiments. LS-Dyna TM electromagnetic module, that utilises finite element method combined with the boundary element method, is used to perform numerical simulations and the m...
Preprint
Full-text available
Standard nodal finite elements in electromagnetic analysis have well-known limitation of occurrence of spurious solution. In order to circumvent the problem, a penalty function method or a regularization method is used with potential formulation. These methods solve the problem partially by pushing the spurious mode to the higher end of the spectru...
Preprint
Full-text available
In the present work, a novel class of hybrid elements is proposed to alleviate the locking anomaly in non-uniform rational B-spline (NURBS)-based isogeometric analysis (IGA) using a two-field Hellinger-Reissner variational principle. The proposed hybrid elements are derived by adopting the independent interpolation schemes for displacement and stre...
Article
Full-text available
When nodal based FEM is applied to vector field problems, some spurious eigen values appears. This can be avoided by adopting edge based FEM in the formulation. A separate conversion algorithm is used which takes the nodal information of quadrilateral element as input. Edge element is created from four node quadrilateral element to solve the 2D eig...
Article
This paper explores the possibility of producing an improved interference-fit tubular joint between pure copper and stainless steel tube by electromagnetic crimping (EMC). Successful joints are obtained with optimal parameters consisting of the outer surface profile of the inner tube and discharge energy. Joints exceeding the strength of the parent...
Article
Eigenvalue analysis of electromagnetic wave propagation for circular domain with and without the presence of the crack is done. Combination of triangularand quadrilateral edge elementsare usedto discretize the circular domain.Conversion algorithm is used to convert the nodal element data to edge element data. We compared the results of both the dom...
Chapter
Electromagnetic crimping is a high-speed joining by forming method that deforms electrically conducting materials using an electromagnetic field. This paper explores the finite element modelling of electromagnetic crimping of Cu-SS tube-to-tube joint with the use of LS-DYNA™ software which utilizes finite element method combined with the boundary e...
Article
Over the past years, in electromagnetic forming (EMF) processes, a huge amount of research has been carried out. It includes sheet metal forming, expansion, and compression of tubes. It has been well documented in the literature that the various products of different shapes can be manufactured with EM forming processes. In this present work, a set...
Conference Paper
Electromagnetic crimping is a high-speed forming method used to join dissimilar metals without physical contact or the formation of metallic bond. In this paper, a non-coupled finite element model is developed using ANSYS Maxwell and ANSYS Explicit Dynamics. Electromagnetic crimping of Cu-SS304 joint with the inner steel tube having an outer thread...
Article
Full-text available
Standard nodal finite elements in the electromagnetic analysis have a well-known limitation of the occurrence of a spurious solution. In order to circumvent the problem, a penalty function method or a regularization method is used with the potential formulation. These methods solve the problem partially by pushing the spurious mode to the higher en...
Article
Full-text available
Electromagnetic forming and perforation (EMFP) is an innovative practice where magnetic forces are used for simultaneous forming and perforation operation. This method is complex, which involves a high strain rate as well as high transformation velocities. It is carried out in a short duration of time and it includes multiple operations, which incr...
Chapter
The electromagnetic forming and perforation is a high strain rate dynamic process, carried out within microseconds, and it is difficult to measure the material behavior experimentally, hence FEA is used. This paper presents the comparison of non-coupled and coupled simulation approach. In non-coupled simulations, using EM fields obtained in Ansys M...
Article
Full-text available
The electromagnetic forming (EMF) process is a high energy rate process that uses magnetic forces to deform the metal workpieces. It also involves high velocities and high strain rates. It is tough to find out these process parameters experimentally, which proposes the need for numerical models. The EMF of muffler tube is a novel technique of manuf...
Article
Electromagnetic forming and perforation (EMFP) is an innovative practice where magnetic forces are used for simultaneous forming and perforation operation. This method is complex, which involves a high strain rate as well as high transformation velocities. It is carried out in a short duration of time and it includes multiple operations, which incr...
Article
Electromagnetic (EM) perforation is a high-strain-rate shearing process of making holes in the workpiece by using an electromagnetic force. This process overcomes the disadvantages of conventional or quasistatic processes. In this work, the comparative study of the quality of holes perforated by the EM dieless perforation process and quasistatic di...
Article
Full-text available
Joining by electromagnetic forming is a high-speed joining technique mostly used for joining axisymmetric components without any metallic bond formation. It possesses huge potential for industrial applications. Finite elements models are proven very helpful in analyzing the various aspects of electromagnetic forming. Non-coupled simulation is obser...
Article
As is well-known, displacement-based finite elements are prone to the ‘locking’ problem. Thus, employing them for solving contact mechanics problems involving thin structures and almost incompressible materials might require a significant amount of computational effort. Hybrid elements which are based on a two-field Hellinger–Reissner variational p...
Chapter
Magnetic pulse forming is a high-speed forming process in which electromagnetic force is used to deform the workpieces. The magnetic pulse forming and punching are a method of punching holes in the tube. The force required for forming and punching is due to electromagnetic interaction between coil and workpiece. In this work, simultaneous forming a...
Article
Full-text available
This work develops a new monolithic strategy for magnetohydrodynamics based on a continuous velocity–pressure formulation. The magnetic field is interpolated in the same way as the velocity field, and the entire formulation is within a nodal finite-element framework. The velocity and pressure interpolations are chosen so that they satisfy the Babus...
Article
Schemes that can be proven to be unconditionally stable in the linear context can yield unstable solutions when used to solve nonlinear dynamical problems. Hence, the formulation of numerical strategies for nonlinear dynamical problems can be particularly challenging. In this work, we show that time finite element methods because of their inherent...
Article
Electromagnetic radiation and scattering in an exterior domain within the context of a finite element method has traditionally involved imposing a suitable absorbing boundary condition on the truncation boundary of the numerical domain to inhibit reflection from it. In this work, based on the Wilcox asymptotic expansion of the electric far-field, w...
Article
We present a hybrid finite element based methodology to solve the coupled fluid structure problem of squeeze film effects in vibratory MEMS devices, such as gyroscopes, RF switches, and 2D resonators. The aforementioned devices often have a thin plate like structure vibrating normally to a fixed substrate, and are generally not perfectly vacuum pac...
Article
The occurrence of spurious solutions is a well-known limitation of the standard nodal finite element method when applied to electromagnetic problems. The two commonly used remedies that are used to address this problem are (i) The addition of a penalty term with the penalty factor based on the local dielectric constant, and which reduces to a Helmh...
Article
The trapezoidal rule, which is a special case of the Newmark family of algorithms, is one of the most widely used methods for transient hyperbolic problems. In this work, we show that this rule conserves linear and angular momenta and energy in the case of undamped linear elastodynamics problems, and an `energy-like measure' in the case of undamped...
Article
Full-text available
In this study we describe an FEM-based methodology to solve the coupled fluid-structure problem due to squeeze film effects present in vibratory MEMS devices, such as resonators, gyroscopes, and acoustic transducers. The aforementioned devices often consist of a plate-like structure that vibrates normal to a fixed substrate, and is generally not pe...
Article
In this work, we propose an approach for reducing radiated noise from ‘light’ fluid-loaded structures, such as, for example, vibrating structures in air. In this approach, we optimize the structure so as to minimize the dynamic compliance (defined as the input power) of the structure. We show that minimizing the dynamic compliance results in substa...

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Projects

Projects (7)
Project
Conversion of nodal elements to edge elements and implementation to eigenvalue problems.
Project
Finite element modelling and experimental investigation of joining of tubes by electromagnetic forming.