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http://dx.doi.org/10.3795/KSME-A.2012.36.9.985

Unsteadily Propagating Permeable Mode III Crack in Piezoelectric Materials  

Lee, Kwang-Ho (Dept. of Automotive Engineering, Kyungpook Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.36, no.9, 2012 , pp. 985-996 More about this Journal
Abstract
An unsteadily propagating permeable crack in piezoelectric materials (PMs) under anti-plane shear mechanical loading and in-plane electric loading is studied. The equilibrium equations for a transiently propagating crack in a PM are developed, and the solutions on the stress and displacement fields for a permeable crack though an asymptotic analysis are obtained. The influences of piezoelectric constant, dielectric permittivity, time rate of change of the crack tip speed and time rate of change of stress intensity factor on the stress and displacement fields at the transiently propagating crack tip are explicitly clarified. By using the stress and displacements, the characteristics of the stress and displacement at a transiently propagating crack tip in a PM are discussed.
Keywords
Unsteadily Propagating Crack; Stress and Displacement Fields; Piezoelectric Materials; Permeable Crack;
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Times Cited By KSCI : 1  (Citation Analysis)
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