Some explicit expressions of extended Stroh formalism for two-dimensional piezoelectric anisotropic elasticity

Since the extended Stroh formalism for two-dimensional piezoelectric anisotropic elasticity preserves essential features of Stroh formalism for pure elastic materials, it becomes important to get the corresponding explicit expressions of some important matrices frequently appeared in Stroh formalism...

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Bibliographic Details
Published in:International journal of solids and structures 2008-08, Vol.45 (16), p.4460-4473
Main Author: Hwu, Chyanbin
Format: Article
Language:English
Subjects:
Anisotropic elasticity
Barnett–Lothe tensors
Explicit expressions
Fundamental matrix
Material eigenvector matrix
Piezoelectric materials
Stroh formalism
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Summary:Since the extended Stroh formalism for two-dimensional piezoelectric anisotropic elasticity preserves essential features of Stroh formalism for pure elastic materials, it becomes important to get the corresponding explicit expressions of some important matrices frequently appeared in Stroh formalism. In this paper, explicit expressions are obtained for the fundamental matrix N, material eigenvector matrices A and B, and Barnett–Lothe tensors L, S and H. Although the explicit expressions are presented under the generalized plane strain and short circuit condition, by suitable replacement of the material constants they are still valid for the other two-dimensional states. To provide a clear picture of these expressions, two typical examples are presented, which are piezoelectric ceramics with two different poling axes.
ISSN:0020-7683
1879-2146
DOI:10.1016/j.ijsolstr.2008.03.025