Search results for "Paz"
showing 10 items of 1302 documents
On the effect of the adhesive on piezoelectric bimorph response
2007
UNA FORMULAZIONE BEM ALTERNATIVA PER LA MECCANICA DELLA FRATTURA
2005
Boundary element method for magneto electro elastic laminates
2006
A boundary integral formulation and its numerical implementation are presented for the analysis of magneto electro elastic media. The problem is formulated by using a suitable set of generalized variables, namely the generalized displacements, which are comprised of mechanical displacements and electric and magnetic scalar potentials, and generalized tractions, that is mechanical tractions, electric displacement and magnetic induction. The governing boundary integral equation is obtained by generalizing the reciprocity theorem to the magneto electro elasticity. The fundamental solutions are calculated through a modified Lekhnitskii's approach, reformulated in terms of generalized magneto-el…
MULTIDOMAIN BOUNDARY ELEMENT MODEL FOR CRACKS IN MAGNETO-ELECTRO-ELASTIC MATERIALS
2007
Analysis of piezoelectric composite laminates with edge delamination
2005
Composite piezoelectric laminates play a crucial role in the development of the smart structures technology for aeronautical and aerospace applications, since they combine the mechanical features of the classical laminates with the additional capability to sense deformation and to adapt the structural response accordingly, allowing in this way an efficient structural control, which is achieved by exploiting the features of the electromechanical coupling. In piezoelectric devices the electrical and mechanical loads give rise to stresses whose intensity can be sufficiently high to lead to the failure of the material, especially if damage is present. In this framework, a topic of great relevan…
Global/local Fracture Mechanics Analyses of Advanced Aerospace Structures
2007
An alternative BEM for Fracture Mechanics
2006
An alternative single domain boundary element formulation and its numerical implementation are presented for the analysis of two-dimensional cracked bodies. The problem is formulated employing the classical displacement boundary integral representation and a novel integral equation based on the stress or Airy’s function. This integral equation written on the crack provides the relations needed to determine the problem solution in the framework of linear elastic fracture mechanics. Results are presented for typical problems in terms of stress intensity factors and they show the accuracy and efficiency of the approach.
An alternative 2D BEM for fracture mechanics in orthotropic materials
2007
An original and alternative single domain boundary element formulation and its numerical implementation are presented for the analysis of orthotropic two-dimensional cracked bodies. The problem is formulated employing the classical displacement boundary integral representation and an alternative integral equation deduced on the basis of the stress function theory. This integral equation written on the crack provides the relations needed to determine the problem solution in the framework of linear elastic fracture mechanics. Numerical examples are reported and discussed to demonstrate the accuracy of the proposed approach.