Tension of a plate containing an embedded elliptical crack
Tension of a plate containing an embedded elliptical crack
复制标题
含有嵌入椭圆裂纹的板的张力
DOI：
10.1016/0013-7944(84)90046-8
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发表时间：
1984
影响因子：
5.4
通讯作者：
H. Noguchi
中科院分区：
文献类型：
--
作者：
M. Isida;H. Noguchi
本文研究了含有嵌入椭圆裂纹的有限厚板的拉伸问题，该裂纹位于任意位置，其主直径之一平行于板表面。分析采用了修正的体力法，通过合理的体力密度模式和合力边界条件，大大提高了分析的精度和有效性。对裂纹的位置、形状和大小的各种组合进行了数值计算，并通过对几种网格模式的数值结果进行外推，确定了实际的应力强度因子的精确值。为了便于实际应用，还给出了多项式形式的经验公式。
This paper deals with the tension of finite thickness plates containing an embedded elliptical crack located at an arbitrary position with one of its principal diameters parallel to the plate surfaces. The analysis is performed by means of a modified body force method, in which the accuracy and the validity are greatly improved by using reasonable patterns of the body force densities and the resultant force boundary conditions. Numerical calculations are done for various combinations of the location, the shape and the size of the crack, and practically exact values of the stress intensity factors are determined by extrapolating the numerical results for several mesh patterns. Empirical formulae in polynomial forms are also presented for convenience of practical use.