Purpose - This paper aims to present harmonic response of magneto-electro-elastic cylinder by quasi-static and fully dynamic electromagnetic theories. The quasi-static assumption uses magnetic scalar potential whereas magnetic vector potential is employed in a fully dynamic model. Design/methodology/approach - The electric field induced by time varying magnetic field is non-conservative and can be described by electric scalar potential and magnetic vector potentials. Findings - The magnitude of vector potential is dominant in axial and circumferential direction whereas the magnetic flux density is significant in radial direction. Magnetic scalar potential approach evaluates only the radial component of magnetic flux density and electric field intensity is reasonably the same as that of the magnetic vector potential approach. Originality/value - Semi-analytical finite element method is used in this paper and the vector potential is formulated in cylindrical coordinates. © Emerald Group Publishing Limited.

Shankar Krishnapillai

Department of Mechanical Engineering

B. Biju

N. Ganesan

Finite element

HARMONIC RESPONSE

MAGNETIC VECTOR POTENTIALS

MAGNETO-ELECTRO-ELASTIC

PHYSICAL PROPERTIES OF MATERIALS

Cylinders (shapes)

Electric fields

Electromagnetism

finite element method

Magnetic flux

Magnetos

Vectors

IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

It currently offers undergraduate, postgraduate and research degrees across 16 disciplines in Engineering, Sciences, Humanities and Management. About 596 faculty belonging to science and engineering departments and centres of the Institute are engaged in teaching, research and industrial consultancy.

IIT Madras

Dynamic analysis of magneto‐electro‐elastic cylindrical shells by quasi‐static and fully dynamic electromagnetic theories

Multidiscipline Modeling in Materials and Structures

The Indian construction industry faces increasing challenges amidst serious performance shortfalls. Confronting similar issues in past decades, other countries such as the UK, USA, and Singapore commissioned high-powered studies and set up industry development bodies to address their own priorities. Initiatives in other countries are briefly reviewed before outlining the launch of the "Construction Industry Improvement Initiative India" (Ci3 India) that aims to address our own challenges. This paper focuses on identifying and launching a platform to address the current and imminent critical issues in the Indian Construction Industry. Nineteen critical issues were identified, verified, and validated through four focus group sessions at two Regional Roundtables with 54 high calibre large building construction clients, academicians, and other invited experts. The identified issues were consolidated to 10 Action Items. Seven Action Teams were then mobilized to work on the 10 Action Items. Having consolidated a base consensus of clients on the way forward, it was also proposed to develop a "Construction Clients' Charter" that will set out basic principles, protocols, and targeted good practices by lead clients, who by voluntarily agreeing and implementing these together, could catalyse significant industry improvements. © Penerbit Universiti Sains Malaysia, 2017.

Fulltext

Journal of Construction in Developing Countries

Identifying and addressing critical issues in the Indian construction industry: Perspectives of large building construction clients

In this paper, the sensory behaviour of magneto-electro-elastic (MEE) materials is presented under transient mechanical loading using a finite element method. The sensor is bonded on the top surface of a mild steel beam. Numerical results are presented for different sensor locations along the length of a beam, subjected to clamped-free and simply supported boundary conditions. A transient sensory response of PZT-5 and (Terfenol-D)-epoxy mixed components (MSCP) is also studied. Ansys 8.1 is used to validate the sensory response (i.e. displacement and electric potential) of PZT-5 with the computer code. © 2008 Elsevier B.V. All rights reserved.

Sensors and Actuators, A: Physical

Behaviour of magneto-electro-elastic sensors under transient mechanical loading

The free vibrations of simply supported magneto-electro-elastic cylindrical shells are studied. A series solution is assumed in the circumferential and axial directions of the shell to preserve the three-dimensional character of the structure. The constitutive equations of the magneto-electro-elastic medium involving mechanical, electrical and magnetic fields are used to derive the finite element model for the system. The influence of the piezomagnetic effect on the structural frequencies of the cylindrical shell is studied. A comparison is made between a shell with a layered configuration and one with a multiphase system. The study is carried out for a typical shell with simply supported boundary conditions for different ratios of length to radius and radius to thickness to analyse the frequency behaviour. © 2006 IOP Publishing Ltd.

Smart Materials and Structures

Free vibrations of simply supported layered and multiphase magneto-electro-elastic cylindrical shells

AMA Manual of Style

Reprints

IEEE Transactions on Magnetics

Reduced Magnetic Vector Potential Formulation in the Finite Element Analysis of Eddy Current Nondestructive Testing

Dynamic analysis of magneto-electro-elastic cylindrical shells by quasi-static and fully dynamic electromagnetic theories

Journal	Multidiscipline Modeling in Materials and Structures
ISSN	15736105
Open Access	No