Access Restriction

Author Kulenović, Zlatan ♦ Kulenović, Darko
Source CiteSeerX
Content type Text
File Format PDF
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Single Screw Dislocation ♦ Conformal Mapping Method ♦ Linear Piezoelectric Theory ♦ Various Effect ♦ Piezoelectric Material ♦ Screw Dislocation ♦ Device System ♦ Numerical Result ♦ Finite Crack ♦ Key Word ♦ Engine System ♦ Modern Electromechanical Device ♦ Piezoelectric Pzt Ceramic Material ♦ Electromechanical Load ♦ Hexagonal Piezoelectric Crystal ♦ Complex Analytic Function ♦ Simple Continuum Model ♦ Real Electromechanical Load
Abstract The piezoelectric materials have been widely used in modern electromechanical devices and engine systems. It is well known that various effects in material, such as dislocations, cracks and inclusions can adversely influence the integrity and performance of such devices/systems. Therefore, it is very important that the behaviors of these defects are analyzed under real electromechanical load. In this work is analyzed a simple continuum model of a single screw dislocation near a finite crack in a hexagonal piezoelectric crystal subjected to electromechanical load. The linear piezoelectric theory, complex analytic functions and conformal mapping method are used, and the forces acting on a dislocation are determined. The numerical results for piezoelectric PZT ceramic material are obtained in MatLab and they are presented in 2D and 3D graphs. Key words: screw dislocation, crack, force, PZT ceramic material 1.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study