应力集中点，指的是点弯曲梁中将U形切槽梁三点弯曲的应力集中系数与对应的U形切槽梁纯弯曲的应力集中系数。所得的应力集中系数应用于三点弯曲梁的无量纲最大承载力和挠度的分析,可以全面考虑切槽深度和切槽宽度的影响。点弯曲梁被广泛应用于测试材料的断裂性能,但对准脆性材料难以制作尖锐的裂纹,因此考虑三点弯曲梁具有U形切槽,此时可以用应力集中系数来表征切槽端部的应力峰值。
... focal length 焦距 focal point of stress 应力集中点 focal probe with water column coupling 水柱耦合聚焦探头 ...
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... focal-point reporting 重点报道 focal aperture point of stress 应力集中点 Brian Tracy Focal Point 博恩崔西 ...
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... stress concentration factor ==> 应力集中系数,应力集中因素,应力集中因子 stress concentration point ==> 应力集中点 stress condition ==> 应力状态 ...
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矿用圆环链弯曲点是应力集中点，肩部断裂发生于该点附近。
The bending point of steel chains for mining is the center of stress, at which the shoulder fracture always occurs.
而扩展裂纹与主应力夹角的逐渐减小则是裂纹附近张应力和剪应力集中点的变化所致。
And that the Angle between extending crack and principal axial stress decreases gradually is caused by the variation of tensile and shear stress focuses in the course of brittle formation.
注浆后使得喷层壁后充填密实，保证荷载能均匀地作用在喷层和支护上，避免出现应力集中点而首先破坏；
The spray layer wall are filled with liquid after grouting, the stress is avoided to be concentrated because the load could be evenly acted on the spray layer and the support;
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