1) Three-dimensional semi-elliptical surface cracks
三维半椭圆表面裂纹
2) semi-elliptical surface crack
半椭圆表面裂纹
1.
Finite element analysis for stress intensity factor of semi-elliptical surface crack in circular tube under torsion and bending;
弯扭组合载荷下圆管半椭圆表面裂纹应力强度因子的有限元分析
2.
In order to determine the stress intensity factors (SIFs) for a semi-elliptical surface crack at the T-root groove of a turbine disc under centrifugal forces, three-dimensional finite element method was employed to solve the displacement field of the cracked disc.
为确定在离心力作用下汽轮机叶轮T型叶根槽半椭圆表面裂纹的应力强度因子,采用三维有限元法求解含裂叶轮的位移场。
3.
The major researches as follows:(1) The surface fracture was studied for Zirconia / Ni-Cr alloy FGMs strip with a semi-elliptical surface crack subjected to the thermal shock load, and studied the influence of crack depth, aspect ratios and thermal boundary conditions on the normalized stress-intensity factors along a crack-front.
本文主要尝试着利用数值方法对功能梯度材料在非定常热边界条件和定常的力边界条件作用下的断裂力学性能进行分析,主要研究内容如下:(1)研究了含有半椭圆表面裂纹的氧化锆/镍铬合金功能梯度材料板条在热冲击载荷作用下的裂纹问题。
3) semielliptic surface crack
半椭圆形表面裂纹
4) elliptical surface crack
表面椭圆裂纹
1.
By linking Visual Basic with ANSYS,a software named AutoSIFA is compiled to calculate the stress intensity factor(SIF) of the semi-elliptical surface crack automatically and conveniently.
为解决用有限元方法进行三维裂纹问题分析时的难点,通过在裂纹前沿设置奇异单元,建立了圆筒表面椭圆裂纹的断裂力学有限元分析模型;通过Visual Basic对ANSYS的封装调用,编制了便于工程化应用的圆筒表面椭圆裂纹应力强度因子自动分析软件AutoSIFA;运用该软件得到了弯扭载荷作用下圆筒表面椭圆裂纹应力强度因子的变化规律,绘制了裂纹最深点应力强度因子形状修正系数FI的曲线图谱,并拟合出了便于工程应用的相关公式。
5) semi elliptical surface crack
半随圆表面裂纹
1.
A practical procedure, which is referred to as elementary modes method, was proposed for evaluating stress intensity factors (SIF) along fronts of semi elliptical surface cracks at weld toes in complex stress fields.
利用这些基本模式解的插值和组合，可以非常迅速地求得一般几何参数情况下焊趾半随圆表面裂纹在复杂应力场中沿裂纹前缘的ＳＩＦ分布。
补充资料：表面裂纹
分子式：
CAS号：
性质：指暴露在容器或构件表面的裂纹，通常以半椭圆形为代表，其中长轴表示裂纹长度，半短轴代表裂纹深度。
CAS号：
性质：指暴露在容器或构件表面的裂纹，通常以半椭圆形为代表，其中长轴表示裂纹长度，半短轴代表裂纹深度。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条