Structural health monitoring with piezoelectric wafer active sensors – predictive modeling and simulation
Journal Title: INCAS BULLETIN - Year 2010, Vol 2, Issue 3
Abstract
This paper starts a review of the state of the art in structural health monitoring with piezoelectric wafer active sensors and follows with highlighting the limitations of the current approaches which are predominantly experimental. Subsequently, the paper examines the needs for developing a predictive modeling methodology that would allow to perform extensive parameter studies to determine the sensing method’s sensitivity to damage and insensitivity to confounding factors such as environmental changes, vibrations, and structural manufacturing variability. The thesis is made that such a predictive methodology should be multi-scale and multi-domain, thus encompassing the modeling of structure, sensors, electronics, and power management. A few examples of preliminary work on such a structural sensing predictive methodology are given. The paper ends with conclusions and suggestions for further work
Authors and Affiliations
Victor GIURGIUTIU
A two-dimensional linear elasticity problem for anisotropic materials, solved with a parallelization code
The present paper introduces a numerical approach of static linear elasticity equations for anisotropic materials. The domain and boundary conditions are simple, to enhance an easy implementation of the finite difference...
Comments on the mathematical modelling of a vertebrobasilar stenosis
In the present paper the case of a stenosis on the basilar artery is investigated. To analyze the problem CT angiography and MRI angiography were performed. To model this real case a non-Newtonian mathematical model was...
CHAOTIC VIBRATION OF BUCKLED BEAMS AND PLATES
The great developing of numerical analysis of the dynamic systems emphasizes the existence of a strong dependence of the initial conditions, described in the phase plane by attractors with a complicated geometrical struc...
ELIE CARAFOLI AT THE ROMANIAN ACADEMY
Calculation of hybrid joints used in modern aerospace structures
The state – of - the art of aeronautical structures show that parts are manufactured and subsequently assembled with the use of fasteners and/ or bonding. Adhesive bonding is a key technology to low weight, high fatigue...