Designing artificial structures with heterogeneous elements and manipulating their interface coupling ways usually bring in synthetic neo-nature to functional devices. For piezoceramic devices, the deformation response refers a variety of extensional, contractional, or shear modes crystals, also relies on boundary conditions from morphology design. However, pursue fundamental torsion actuation ...

In this article, the authors derive the discrete analogue of the conservation law for coupled electromechanical systems in the two-dimensional case. As a consequence of non-negativity of the discrete energy operator, the stability conditions for the numerical model are derived in the explicit form. Results of computational experiments for hollow piezoceramic cylinders are presented.

In this article the author constructs an eeective diierence scheme for the solution of coupled dynamic electroelasticity problems for nite dimensional solids. Such a construction is based on the energy conservation law for the electromechanical system and the deenition of generalised solutions for the corresponding diierential problem. Results of computational experiments are presented for holl...

Piezoceramic patch sensors have to withstand the primary stresses and strains of a structure during operation. In the leading project ‘Adaptronics’ a lifespan of 106 cycles at 0.1% strain was required for sensors applied on components of steel and carbon fibre reinforced plastic (CFRP). In order to test the reliability of the patches themselves and of their adhesion on the substrate, special fo...

Embedded Lead Zirconate Titanate (PZT) transducers have been widely used in research related to monitoring the health status of concrete structures. This paper presents a dynamic model of an embeddable PZT transducer with a waterproof layer and a protecting layer. The proposed model is verified by finite-element method (FEM). Based on the proposed model, the factors influencing the dynamic prop...

This paper addresses the modeling of nonlinear constitutive relations and hysteresis inherent to piezoceramic materials at moderate to high drive levels. Such models are necessary to realize the full potential of the materials in high performance control applications, and a necessary prerequisite is the development of techniques which permit control implementation. The approach employed here is...