Civil Engineering Faculty Research

Title

General Solutions of Plane Problem in One-Dimensional Quasicrystal Piezoelectric Materials and Its Application on Fracture Mechanics

Document Type

Article

Publication Date

Summer 6-2015

Abstract

Based on the fundamental equations of piezoelasticity of quasicrystals (QCs), with the symmetry operations of point groups, the plane piezoelasticity theory of onedimensional (1D) QCs with all point groups is investigated systematically. The governing equations of the piezoelasticity problem for 1D QCs including monoclinic QCs, orthorhombic QCs, tetragonal QCs, and hexagonal QCs are deduced rigorously. The general solutions of the piezoelasticity problem for these QCs are derived by the operator method and the complex variable function method. As an application, an antiplane crack problem is further considered by the semi-inverse method, and the closed-form solutions of the phonon, phason, and electric fields near the crack tip are obtained. The path-independent integral derived from the conservation integral equals the energy release rate.

Publication Title

Applied Mathematics and Mechanics

Volume

36

Issue

6

First Page

793

Last Page

814