Electroelastic response of a flat annular crack in a piezoelectric fiber surrounded by an elastic medium
Electroelastic response of a flat annular crack in a piezoelectric fiber surrounded by an elastic medium
复制标题
DOI：
10.1007/s10665-006-9072-z
复制
发表时间：
2007-07
影响因子：
1.3
通讯作者：
Y. Shindo;Sen Lin;F. Narita
中科院分区：
文献类型：
--
作者：
Y. Shindo;Sen Lin;F. Narita
根据线性压电理论，研究了弹性介质中压电纤维中环形裂纹的电弹性问题。傅立叶和汉克尔变换技术制定的混合边值问题作为一个奇异积分方程。计算了几种压电复合材料的应力强度因子、能量释放率和能量密度因子，并以图形方式显示了外加电场对归一化值的影响。
Following the theory of linear piezoelectricity, the electroelastic problem of a flat annular crack in a piezoelectric fiber embedded in an elastic medium is considered. Fourier and Hankel transform techniques are employed to formulate the mixed-boundary-value problem as a singular integral equation. The stress-intensity factor, energy-release rate and energy-density factor are computed for some piezoelectric composites, and the influence of applied electric fields on the normalized values is displayed graphically.