摘要
以各向异性 Stroh公式为基础 ,通过引入电学量与力学量的耦合效应 ,将各向异性压电介质平面变形问题的一般解表示出来 .然后结合映射变换技术推出该问题 Stroh解的特殊表达式 ,并进而分析沿抛物线边界存在 n条曲边裂纹时介质内的物理场 ,求解裂纹尖端的广义强度因子和广义裂面张开位移等断裂参数 .
Based upon strohs formalism for anisotropic elasticity, the general explicit solutions to piezoelectric and anisotropic bodies are presented when introducing the coupling effects between mechanical and electric fields. The special solution form of the problem is given under consideration. The simple compact explicit solutions to a piezoelectric and anisotropic medium with a few curved cracks distributed along a parabola are analyzed through a transformation technique. The corresponding fracture parameters at crack tips, the generalized intensity factors and the generalized crack opening displacements, are obtained.
出处
《华中理工大学学报》
CSCD
北大核心
2000年第3期53-56,共4页
Journal of Huazhong University of Science and Technology
关键词
曲边裂纹
广义强度因子
抛物线分布
压电弹性体
curved crack
piezoelectric and anisotropic elasticity
generalized intensity factors
generalized crack opening displacements
