elliptical crack meaning in English
椭圆裂纹
椭圆形裂纹
Examples
- Weighted function method for a crack opening displacement of an elliptical crack
椭圆裂纹张开位移权函数法 - A noval method on exact solutions of elliptical cracks in piezoelectrics
压电材料中椭圆片状裂纹问题精确解的一种方法 - According to the constitutive relationship in linear piezoceramics , elliptical crack problems in impermeable case are analyzed with hypersingular integral equation method
摘要在线性压电陶瓷本构关系和裂纹边界绝缘的框架下，用超奇异积分方程的方法对椭圆类片状裂纹问题进行了重新研究。 - The main results and academic contributions of the dissertation can be summarized as following : 1 ) for the difficulty to obtain the accurate analytical solution of the stress constraints around 3d cracks , detailed 3d fe analyses have been conducted to study the out - of - plane constraint factor tz around a straight through - thickness crack , a quarter - elliptical corner crack and a semi - elliptical crack embedded in an isotropic elastic plate subjected to uniform remote tension loading . the distributions of tz are minutely studied in the forward section of the cracks . strong 3d zones ( tz > 0 ) along the crack front were investigated despite the far field stress - free boundary conditions
全文主要研究内容和学术贡献如下: 1 .针对一般三维裂纹端部场应力约束准确解析的困难,对均匀拉伸载荷作用下各向同性弹性板中穿透厚度中心直裂纹、半椭圆表面裂纹和1 / 4椭圆角裂纹进行了大量详细的全场应力三维有限元分析,首次全面分析了非穿透裂纹端部场三维影响区范围,给出了不同形状三维裂纹前沿离面应力约束因子tz的数值解,并结合k场平面解给出了非穿透裂纹端部应力场k - tz双参数描述。