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Analysis of cracked piezoelectric layer with imperfect non-homogeneous orthotropic coating
University of Zanjan, Iran.
University of Zanjan, Iran.
Aalto University, Finland.ORCID iD: 0000-0001-8515-9907
2015 (English)In: International Journal of Mechanical Sciences, ISSN 0020-7403, E-ISSN 1879-2162, Vol. 93, 93-101 p.Article in journal (Refereed) Published
Abstract [en]

Abstract The fracture problem for a medium composed of a cracked piezoelectric strip with functionally graded orthotropic coating is studied. The layer is subjected to anti-plane mechanical and in-plane electrical loading. In this paper, we first address, the problem of a screw dislocation located in a substrate which is imperfectly bonded to the coating. Then, in order to model the cracked piezoelectric layer, by means of the dislocation solution, we construct integral equations for the layer, in which the unknown variables are dislocation densities. These unknowns are determined through satisfaction of the boundary conditions on the crack faces. By use of the dislocation densities, the field intensity factors are determined. Several examples are presented to demonstrate the applicability of the proposed solution. ", keywords = Piezoelectric strip; Functionally graded layer; Imperfect bonding; Multiple cracks; Stress intensity factors, isbn = 0020-7403, doi=https://doi.org/10.1016/j.ijmecsci.2014.11.025

Place, publisher, year, edition, pages
Elsevier, 2015. Vol. 93, 93-101 p.
Keyword [en]
Piezoelectric strip; Functionally graded layer; Imperfect bonding; Multiple cracks; Stress intensity factors
National Category
Applied Mechanics
Research subject
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kau:diva-65027DOI: 10.1016/j.ijmecsci.2014.11.025ISI: 000352660800009OAI: oai:DiVA.org:kau-65027DiVA: diva2:1154121
Available from: 2017-11-01 Created: 2017-11-01 Last updated: 2017-12-07Bibliographically approved

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