An axisymmetric problem of an embedded mixed-mode crack in a functionally graded magnetoelectroelastic infinite medium

M. Rekik, S. El-Borgi, Zoubeida Ounaies

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

This paper investigates the problem of an axisymmetric penny shaped crack embedded in an infinite functionally graded magneto electro elastic medium. The loading consists of magnetoelectromechanical loads applied on the crack surfaces assumed to be magneto electrically impermeable. The material's gradient is parallel to the axisymmetric direction and is perpendicular to the crack plane. An anisotropic constitutive law is adopted to model the material behavior. The governing equations are converted analytically using Hankel transform into coupled singular integral equations, which are solved numerically to yield the crack tip stress, electric displacement and magnetic induction intensity factors. A similar problem but with a different crack morphology, that is a plane crack embedded in an infinite functionally graded magneto electro elastic medium, was considered by the authors in a previous work (Rekik et al., 2012) [25]. While the overall solution schemes look similar, the axisymmetric problem resulted in more mathematical complexities and let to different conclusions with respect to the influence of coupling between elastic, electric and magnetic effects. The main focus of this paper is to study the effect of material non-homogeneity on the fields' intensity factors to understand further the behavior of graded magnetoelectroelastic materials containing penny shaped cracks and to inspect the effect of varying the crack geometry.

Original languageEnglish (US)
Pages (from-to)1193-1210
Number of pages18
JournalApplied Mathematical Modelling
Volume38
Issue number4
DOIs
StatePublished - Feb 15 2014

Fingerprint

Mixed Mode
Crack
Cracks
Intensity Factor
Hankel transform
Surface Crack
Constitutive Law
Singular Integral Equation
Crack Tip
Electromagnetic induction
Perpendicular
Governing equation
Proof by induction
Crack tips
Integral equations
Gradient
Geometry

All Science Journal Classification (ASJC) codes

  • Modeling and Simulation
  • Applied Mathematics

Cite this

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An axisymmetric problem of an embedded mixed-mode crack in a functionally graded magnetoelectroelastic infinite medium. / Rekik, M.; El-Borgi, S.; Ounaies, Zoubeida.

In: Applied Mathematical Modelling, Vol. 38, No. 4, 15.02.2014, p. 1193-1210.

Research output: Contribution to journalArticle

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