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The influence of Maxwell stresses on the fracture mechanics of piezoelectric materials

Zhang, A. B. and Wang, Baolin L. (2014). The influence of Maxwell stresses on the fracture mechanics of piezoelectric materials. Mechanics of Materials,68:64-69.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 1 times in Scopus Article | Citations

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IRMA ID 82794376xPUB214
Title The influence of Maxwell stresses on the fracture mechanics of piezoelectric materials
Author Zhang, A. B.
Wang, Baolin L.
Journal Name Mechanics of Materials
Publication Date 2014
Volume Number 68
ISSN 1872-7743   (check CDU catalogue  open catalogue search in new window)
Scopus ID 2-s2.0-84884621588
Start Page 64
End Page 69
Total Pages 6
Place of Publication Netherlands
Publisher Elsevier BV
HERDC Category C1 - Journal Article (DIISR)
Abstract The influence of Maxwell stresses on the generalized 2D fracture mechanics problem of piezoelectric materials under combined mechanical and electric loads at infinity is studied. The electrically semi-permeable crack boundary condition is adopted in this paper. Based on the Stroh’s formalism, explicit and closed-form solutions of electric displacement inside the crack, stress and electric intensity factors are obtained. Numerical results are also given to discuss the effects of Maxwell stresses on the stress and electric displacement intensity factors when the interior of the crack and the surrounding space at infinity are filled with different dielectric medium. It is found that the stress intensity factor increases rapidly with increasing value of the applied electric displacement load for the case of the dielectric constant of the surrounding at infinity is smaller than that inside the crack. The electric displacement intensity factor always increases as the applied electric loads or the applied mechanical loads increase.
Keywords Piezoelectric
Maxwell stresses
Boundary conditions
Intensity factor
DOI http://dx.doi.org/10.1016/j.mechmat.2013.07.023   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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