Title

Electrothermal Stress In Conducting Particulate Composites

Abstract

Electrothermal-mechanical interaction plays an important role in controlling the performance of electromechanical structures and field-assisted processes. The understanding of electrothermal-mechanical behavior of a material requires the analyses of Joule heating and thermomechanical deformation. In this study, we analyze the current-induced thermal stress in a conducting composite consisting of conducting spherical inclusions at dilute concentration. Assuming that there is no interaction among conducting inclusions, we obtain closed-form solutions of local temperature and thermal stress. The thermal stress created by Joule heating is proportional to the square of electric current density (electric field intensity) and the von-Mises stress reaches the maximum value at the interface between the spherical inclusion and the matrix. Large electric current will likely cause local delamination along the interface. © Springer Science+Business Media, LLC 2012.

Publication Date

9-1-2012

Publication Title

Journal of Materials Science

Volume

47

Issue

17

Number of Pages

6226-6236

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1007/s10853-012-6541-9

Socpus ID

84864463114 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84864463114

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