A Time Domain BEM For Transient Dynamic
Straight Crack In Piezoelectric Solids
Author(s)
Peng Zhao & Taiyan Qin
Abstract
A singular time-domain boundary element method for transient elastodynamic
crack analysis in two-dimensional piezoelectric solids is presented in this paper.
A finite straight crack in infinite piezoelectric solids under impacted loading is
investigated. A convolution quadrature formula is applied for temporal
discretization, while the Gauss-Chebyshev method is adopted for the spatial
integration. By use of Laplace transform, time domain Green’s functions for the
infinite plane are split into singular plus regular terms, the singular ones
coinciding with the static Green’s function. Numerical examples are presented to
show the accuracy of this method, and then the contribution of the piezoelectric
effect on the variation of dynamic stress intensity factors is discussed.
Keywords: piezoelectric solids, dynamic crack analysis, dynamic intensity
factors.
Keywords
piezoelectric solids, dynamic crack analysis, dynamic intensity
factors
Related Book
Other papers in this volume
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