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Analysis of cracked functionally graded piezoelectric strip
Aalto University, Finland.ORCID iD: 0000-0001-8515-9907
Aalto University, Finland.
2013 (English)In: International Journal of Solids and Structures, ISSN 0020-7683, E-ISSN 1879-2146, Vol. 50, no 14-15, p. 2449-2456Article in journal (Refereed) Published
Abstract [en]

Abstract The fracture behavior of a cracked strip under antiplane mechanical and inplane electrical loading is studied. A functionally graded piezoelectric strip with exponential material gradation is under consideration. The mechanical and electrical loading is combined via loading coupling factor. The problem of a graded piezoelectric strip containing a screw dislocation is solved. This solution results in stress and electric displacement components with Cauchy singularity. Based on the solution achieved for the dislocation, the distributed dislocation technique (DDT) is utilized to form any geometry of multiple cracks and analyze the behavior of a cracked strip under antiplane mechanical and inplane electrical loading. This technique is capable of the analysis of a strip with a system of interacting cracks. Several examples including strips with single crack, two straight cracks and two curved cracks are presented.

Place, publisher, year, edition, pages
2013. Vol. 50, no 14-15, p. 2449-2456
Keywords [en]
Functionally graded piezoelectric; Crack; Strip; Distributed dislocation technique
National Category
Applied Mechanics
Research subject
Materials Engineering
Identifiers
URN: urn:nbn:se:kau:diva-65040DOI: 10.1016/j.ijsolstr.2013.03.038ISI: 000320095800026OAI: oai:DiVA.org:kau-65040DiVA, id: diva2:1154096
Available from: 2017-11-01 Created: 2017-11-01 Last updated: 2017-11-01Bibliographically approved

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