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首页> 外文期刊>Engineering Fracture Mechanics >Stress concentration around a strongly oblate cavity in a cubic crystal and its associated crack problems
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Stress concentration around a strongly oblate cavity in a cubic crystal and its associated crack problems

机译：立方晶体中强扁圆形腔周围的应力集中及其相关的裂纹问题

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摘要

The stress distribution around a strongly oblate spheroidal cavity in a cubic crystal is determined by the equivalent inclusion method. The stress concentration factor is shown to be a product of two factors: one factor is purely geometric; the other factor depends on the material properties. By allowing the aspect ratio of the cavity to approach zero, the stress intensity factor of the associated penny-shaped crack is deduced. The energy release rates of cracks on {1 0 0} planes are computed for different growth directions. Theses results are found to be correlated well with Zener’s anisotropy factor.
机译：通过等效夹杂法确定立方晶体中强扁球体腔周围的应力分布。应力集中系数显示为两个系数的乘积：一个系数纯粹是几何形状;另一个是纯几何形状。其他因素取决于材料性能。通过使空腔的纵横比接近零，可以得出相关的便士形裂纹的应力强度因子。针对不同的生长方向，计算{1 0 0}平面上裂纹的能量释放速率。发现这些结果与齐纳各向异性系数很好相关。

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