The dynamic response of a magneto-electro-elastic sensor bonded to a cylindrical shell is addressed in this paper. A semi-analytical finite-element method is used to model the structure. The cylinder is subjected to an internal pressure and the response is studied for clamped-free and clamped-clamped boundary conditions with different sensor locations. Proportional damping is assumed and the Newmark-beta method is used as the solution technique. The response is found to be the maximum when the sensor is placed at the clamped end. It is advisable to place the sensor at the free end than in the middle to replicate the nature of load history. © 2010 Authors.

Shankar Krishnapillai

Department of Mechanical Engineering

B. Biju

Natrajan Ganesan

BETA METHOD

CLAMPED BOUNDARIES

Cylindrical shell

FINITE-ELEMENT

Free end

INTERNAL PRESSURE

LOAD HISTORY

MAGNETO-ELECTRO-ELASTIC

Semi-analytical

Sensor location

Shell structure

Solution techniques

TRANSIENT DYNAMIC RESPONSE

Transient response

finite element method

Magnetos

Sensors

Transient analysis

Dynamic response

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IIT Madras

The transient dynamic response of multiphase magneto-electroelastic sensors bonded to a shell structure

Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications

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

IEEE Transactions on Magnetics

Finite Element Modeling of Magnetoelectric Sensors

Computers & Structures

Piezoelectric control of composite plate vibration: Effect of electric potential distribution

International Journal of Solids and Structures

Wave propagation in magneto-electro-elastic multilayered plates

Journal	Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications
ISSN	14644207
Open Access	No